Nursing Foundation - IV Therapy And Blood Transfusion Complete Notes

IV Therapy and Blood Transfusion – Complete Nursing Notes

IV Cannulation, IV Fluids, IV Administration, Complications, Blood Components, Transfusion Procedure, Reactions, Emergency Management and Nursing Care

IV Therapy and Blood Transfusion are essential clinical skills in nursing practice. Nurses frequently care for patients receiving intravenous fluids, medications, blood components and other IV therapies. Safe practice requires accurate assessment, correct equipment, aseptic technique, appropriate monitoring and early recognition of complications.

These detailed notes are useful for BSc Nursing, GNM, ANM, Nursing Foundation, Adult Health Nursing, NORCET, AIIMS Nursing and other nursing examinations.

📚 Table of Contents

1. Introduction to IV Therapy
2. Definition of IV Therapy
3. Purposes of IV Therapy
4. Indications of IV Therapy
5. Contraindications and Precautions
6. Types of IV Access
7. Peripheral IV Cannulation Sites
8. Equipment Required
9. Assessment Before IV Therapy
10. IV Cannulation Procedure
11. IV Cannula Care and Maintenance
12. Types of IV Fluids
13. Crystalloids
14. Colloids
15. Selection of IV Fluids
16. IV Flow Rate Calculation
17. IV Therapy Complications
18. Phlebitis
19. Infiltration
20. Extravasation
21. Hematoma
22. IV Site Infection
23. Occlusion
24. Air Embolism
25. Fluid Overload
26. Introduction to Blood Transfusion
27. Blood Components
28. Indications for Blood Components
29. Blood Group Compatibility
30. Pre-Transfusion Assessment
31. Blood Transfusion Equipment
32. Blood Transfusion Procedure
33. Monitoring During Transfusion
34. Blood Transfusion Reactions
35. Acute Hemolytic Reaction
36. Febrile Non-Hemolytic Reaction
37. Allergic Reaction
38. Anaphylactic Reaction
39. TACO
40. TRALI
41. Transfusion-Associated Sepsis
42. Immediate Management of Suspected Reaction
43. Documentation
44. Assessment Sequence in Different Situations
45. Safety Checklist
46. High-Yield Exam Points
47. Frequently Asked Questions
48. 10 MCQs
49. Answers and Explanations

1. Introduction to IV Therapy

Intravenous therapy involves delivering fluids, medications, electrolytes, nutrients or blood components directly into the vascular system through an appropriate venous access device.

Because IV therapy provides direct access to the bloodstream, medications and fluids can act rapidly. At the same time, IV errors can have rapid and potentially serious consequences. Therefore, IV therapy requires careful patient assessment and continuous monitoring.

ASSESS → VERIFY → PREPARE → INSERT/ACCESS → ADMINISTER → MONITOR → DOCUMENT

2. Definition of IV Therapy

Intravenous therapy is the administration of fluids, medications, blood products or other prescribed substances directly into a vein through an intravenous access device.

3. Purposes of IV Therapy

• Restore fluid volume.
• Correct or prevent dehydration.
• Administer prescribed medications.
• Replace electrolytes when indicated.
• Provide blood components.
• Provide selected nutritional therapy.
• Maintain venous access when clinically indicated.
• Deliver rapid medication therapy when the IV route is appropriate.

4. Indications of IV Therapy

• Severe dehydration.
• Hypovolemia requiring IV fluid therapy.
• Patients unable to take adequate fluids orally.
• Administration of IV medications.
• Selected perioperative patients.
• Electrolyte replacement when IV therapy is indicated.
• Administration of blood components.
• Selected emergency situations.

5. Contraindications and Precautions

The choice of IV site and device depends on the patient's condition, therapy, duration, medication characteristics and available vascular access.

Generally avoid or use caution with:

• Infected or damaged skin.
• Sites with burns.
• Areas with significant edema.
• Sites distal to a compromised vein.
• Extremities affected by certain vascular or lymphatic procedures when contraindicated by clinical policy.
• Areas with impaired circulation.

6. Types of IV Access

Type	Description	Common Use
Peripheral IV cannula	Short catheter inserted into a peripheral vein	Short-term fluids, medications and selected therapies
Midline catheter	Longer peripheral catheter whose tip remains in a peripheral vein	Selected therapies requiring longer peripheral access
PICC	Peripherally inserted central catheter	Longer-term therapy and selected medications
Central venous catheter	Catheter with tip positioned in a central vein	Selected long-term, high-risk or specialized therapies

7. Common Peripheral IV Cannulation Sites

Upper Limb

• Dorsal veins of the hand.
• Forearm veins.
• Cephalic vein.
• Basilic vein.

General Site Selection Principles

• Prefer an appropriate distal site when possible.
• Use the smallest appropriate catheter size for the prescribed therapy.
• Avoid areas of flexion when an alternative site is available.
• Inspect the skin and vein before insertion.
• Consider the patient's age, vascular condition and therapy duration.

8. Equipment Required for Peripheral IV Cannulation

• Prescribed IV cannula.
• Appropriate IV solution or medication.
• Tourniquet.
• Antiseptic/skin preparation according to institutional policy.
• Clean gloves.
• Extension set or needleless connector when appropriate.
• IV administration set.
• Transparent sterile dressing.
• Securement device if indicated.
• Saline flush when prescribed/appropriate.
• Sharps disposal container.
• Labels.
• IV pole or infusion pump as required.

9. Assessment Before IV Therapy

PATIENT → PRESCRIPTION → ALLERGY → VEINS → THERAPY → EQUIPMENT → SAFETY

Patient Assessment

• Confirm patient identity.
• Assess diagnosis and clinical condition.
• Check allergies.
• Assess hydration status when relevant.
• Assess vital signs.
• Review relevant laboratory values.
• Assess peripheral circulation.
• Assess existing IV access.

Therapy Assessment

• Fluid or medication prescribed.
• Concentration.
• Volume.
• Route.
• Rate.
• Compatibility.
• Duration.

10. Peripheral IV Cannulation Procedure

Step 1: Verify the prescription and identify the patient.

Step 2: Explain the procedure and obtain appropriate cooperation.

Step 3: Perform hand hygiene.

Step 4: Prepare the required equipment.

Step 5: Select an appropriate vein and site.

Step 6: Apply the tourniquet appropriately.

Step 7: Prepare the skin using the recommended antiseptic technique.

Step 8: Allow the antiseptic to dry according to product instructions.

Step 9: Insert the IV catheter using aseptic/no-touch technique as appropriate.

Step 10: Confirm venous access according to institutional technique.

Step 11: Advance and secure the catheter appropriately.

Step 12: Connect the prescribed IV system.

Step 13: Secure the IV catheter and apply appropriate dressing.

Step 14: Label according to institutional policy.

Step 15: Dispose of sharps safely.

Step 16: Document the procedure and assess the site.

Never reuse a needle or catheter.

Follow standard precautions, hand hygiene and institutional infection-prevention policies throughout the procedure.

11. IV Cannula Care and Maintenance

• Inspect the IV site regularly.
• Assess for pain, redness, swelling, warmth and leakage.
• Check patency according to institutional policy.
• Maintain appropriate dressing integrity.
• Keep connections clean and secure.
• Use aseptic technique for access and manipulation.
• Monitor the prescribed infusion rate.
• Remove the catheter when no longer clinically indicated or when complications require removal.

12. Types of IV Fluids

IV fluids are commonly categorized as crystalloids and colloids.

Category	Basic Description
Crystalloids	Solutions containing small dissolved particles that can distribute between fluid compartments.
Colloids	Solutions containing larger molecules that exert oncotic effects.

13. Crystalloids

Isotonic Solutions

Isotonic fluids have an effective osmotic concentration that is broadly similar to plasma under clinical conditions and are commonly used for intravascular volume replacement in appropriate patients.

Examples include:

• 0.9% Sodium Chloride.
• Balanced crystalloid solutions such as Ringer's lactate/Hartmann-type solutions, depending on local availability.

Hypotonic Solutions

Hypotonic solutions provide relatively more free water to body compartments after metabolism or distribution.

Example:

• 0.45% Sodium Chloride.

Hypertonic Solutions

Hypertonic solutions have a higher effective osmotic concentration than plasma and can shift water into the intravascular space.

They require careful patient selection and monitoring.

Clinical Point:

The term "isotonic," "hypotonic" or "hypertonic" alone does not determine whether a fluid is appropriate. The patient's diagnosis, fluid status, electrolytes, renal/cardiac function and treatment goals must be considered.

14. Colloids

Colloids contain larger molecules that can increase plasma oncotic pressure. Their use depends on the clinical indication, available evidence, local protocols and patient-specific factors.

Examples include selected albumin preparations and other colloid products.

Remember:

Do not select an IV fluid solely on the basis of its category. Follow the prescribed treatment plan and current institutional/clinical guidance.

15. Factors Affecting Selection of IV Fluids

• Degree and type of fluid deficit.
• Blood pressure and hemodynamic status.
• Electrolyte abnormalities.
• Renal function.
• Cardiac function.
• Age.
• Comorbidities.
• Current oral/enteral intake.
• Urine output.
• Laboratory findings.
• Ongoing losses.
• Clinical response to treatment.

16. IV Flow Rate Calculation

mL per Hour

mL/hour = Total Volume (mL) ÷ Time (hours)

Example

1000 mL is prescribed over 8 hours.

1000 ÷ 8 = 125 mL/hour

Answer: 125 mL/hour

Drops per Minute

Drops/minute = (Volume × Drop Factor) ÷ Time in Minutes

Example

500 mL is to run over 5 hours using a 20 drops/mL administration set.

5 hours × 60 = 300 minutes

(500 × 20) ÷ 300 = 33.3 drops/minute

Answer: approximately 33 drops/minute

Important:

Always verify the actual drop factor printed on the IV administration set. Do not assume that every macrodrip set has the same drop factor.

17. Complications of IV Therapy

Complication	Typical Findings	Initial Nursing Action
Phlebitis	Pain, redness, warmth, tenderness along vein	Stop infusion and manage the site according to policy
Infiltration	Swelling, coolness, pallor, leakage	Stop infusion and assess the affected site
Extravasation	Leakage of a vesicant/irritant into surrounding tissue	Stop infusion and follow drug-specific extravasation protocol
Hematoma	Bruising, swelling, blood accumulation	Stop/remove access as appropriate and manage site
Infection	Redness, warmth, discharge, fever or systemic signs	Stop/manage access and escalate according to clinical findings
Occlusion	Resistance or inability to infuse	Assess line; do not force flush
Fluid overload	Dyspnea, edema, crackles, rising BP in some patients	Stop/reduce infusion as clinically appropriate and assess urgently
Air embolism	Sudden respiratory/cardiovascular or neurological symptoms may occur	Stop source and initiate emergency response

18. Phlebitis

Phlebitis is inflammation of a vein associated with an IV catheter or infusion.

Signs and Symptoms

• Pain or tenderness.
• Redness.
• Warmth.
• Swelling around the vein.
• Palpable venous cord in some cases.

Nursing Management

• Stop the infusion.
• Assess the IV site.
• Remove the catheter when indicated.
• Restart IV access at an appropriate site if therapy remains necessary.
• Document findings and intervention.
• Escalate if infection or worsening symptoms are suspected.

19. Infiltration

Infiltration occurs when a non-vesicant IV solution leaks from the vein into surrounding tissue.

Common Signs

• Swelling.
• Cool skin.
• Pallor.
• Slowed or stopped infusion.
• Discomfort or tightness.

STOP INFUSION → ASSESS SITE → REMOVE/REPLACE ACCESS AS INDICATED → DOCUMENT → MONITOR

20. Extravasation

Extravasation is leakage of a vesicant or certain irritant medication from the vascular system into surrounding tissue.

Emergency Nursing Point:

If extravasation is suspected, stop the infusion immediately and follow the specific medication's extravasation protocol. The appropriate sequence may include leaving the catheter in place temporarily for aspiration or administration of an antidote when indicated by the protocol. Do not flush the line unless specifically directed by the applicable protocol.

21. Hematoma

A hematoma can occur when blood leaks into surrounding tissue during venipuncture or IV insertion.

Signs

• Bruising.
• Swelling.
• Discomfort.
• Discoloration.

22. IV Site Infection

Possible Local Signs

• Increasing redness.
• Warmth.
• Tenderness.
• Purulent drainage.
• Swelling.

Possible Systemic Signs

• Fever.
• Chills.
• Tachycardia.
• Hypotension.
• Other signs of systemic infection.

Clinical Point:

Suspected bloodstream infection requires prompt clinical assessment and escalation according to institutional protocol.

23. IV Occlusion

Occlusion means obstruction or impaired flow through the IV catheter or tubing.

Possible Causes

• Kinked tubing.
• Closed clamp.
• Malpositioned catheter.
• Catheter-related clot.
• Compression of the vein.

Never force an IV flush against resistance.

24. Air Embolism

An air embolism occurs when a clinically significant amount of air enters the vascular system.

Possible Findings

• Sudden dyspnea.
• Chest discomfort.
• Cough.
• Altered mental status.
• Hypotension.
• Neurological changes.

Immediate Nursing Response

• Stop the source of air entry.
• Call for emergency assistance.
• Assess airway, breathing and circulation.
• Provide oxygen and supportive care as indicated.
• Follow institutional emergency protocol.

25. Fluid Overload

Risk Factors

• Heart failure.
• Renal impairment.
• Excessive IV fluid administration.
• Older or critically ill patients.

Possible Signs

• Dyspnea.
• Peripheral edema.
• Crackles.
• Rapid weight gain.
• Increasing oxygen requirement.
• Elevated blood pressure in some patients.

STOP/ADJUST AS APPROPRIATE → ABC ASSESSMENT → OXYGEN IF INDICATED → NOTIFY/ESCALATE → MONITOR

26. Introduction to Blood Transfusion

Blood transfusion is the administration of blood or a specific blood component to a patient through an appropriate vascular access device.

Modern transfusion practice generally uses specific blood components rather than giving whole blood routinely. The selected component should match the clinical indication.

Blood transfusion is a high-risk clinical procedure.

Patient identification, compatibility verification, monitoring and prompt recognition of transfusion reactions are essential.

27. Blood Components

Component	Primary Purpose
Red Blood Cells (RBCs)	Improve oxygen-carrying capacity in appropriate patients
Platelets	Support patients with clinically significant thrombocytopenia or platelet-related bleeding risk according to indication
Fresh Frozen Plasma (FFP)	Provides multiple coagulation factors when clinically indicated
Cryoprecipitate	Provides concentrated fibrinogen and selected coagulation proteins
Whole Blood	Contains red cells, plasma and platelets; used selectively in specific clinical circumstances

28. Indications for Common Blood Components

Red Blood Cells

Used when increased oxygen-carrying capacity is clinically required, based on symptoms, hemoglobin level, ongoing blood loss and overall clinical status.

Platelets

Used to prevent or treat bleeding in patients with low platelet counts or impaired platelet function when clinically indicated.

Fresh Frozen Plasma

Used when replacement of multiple coagulation factors is required and clinically appropriate.

Cryoprecipitate

Used primarily when fibrinogen replacement or specific factor replacement is clinically indicated.

29. Blood Group Compatibility

ABO and Rh compatibility are important components of safe transfusion practice. Compatibility requirements depend on the blood component being transfused.

Component	Important Compatibility Principle
Red Blood Cells	ABO compatibility is critical; RhD status is also considered.
Plasma	ABO compatibility principles differ from RBC transfusion because plasma contains antibodies.
Platelets	ABO/Rh considerations depend on availability and clinical circumstances.

Exam + Clinical Safety:

Never determine compatibility from memory alone during actual patient care. Follow the blood bank's compatibility information, current institutional policy and the patient's issued blood component label.

30. Pre-Transfusion Assessment

IDENTITY → ORDER → CONSENT → BLOOD PRODUCT → COMPATIBILITY → BASELINE ASSESSMENT → IV ACCESS

Check the Patient

• Correct patient identification.
• Relevant clinical history.
• Previous transfusion reactions.
• Known allergies.
• Baseline vital signs.
• Current symptoms.
• Relevant laboratory results.
• IV access patency.

Check the Blood Product

• Patient identifiers.
• Blood group information.
• Component type.
• Unit identification number.
• Compatibility status.
• Expiry date/time as applicable.
• Integrity of the blood bag.
• Abnormal discoloration, clots or other abnormalities.

If any identification or compatibility information does not match, DO NOT START THE TRANSFUSION.

Resolve the discrepancy through the appropriate blood bank/clinical process.

31. Blood Transfusion Equipment

• Blood component prescribed for the patient.
• Appropriate IV access.
• Blood administration set with appropriate filter.
• Normal saline when compatible and required by policy.
• Infusion pump when appropriate and approved for the blood product.
• Vital-sign monitoring equipment.
• Emergency equipment/access as clinically required.
• Documentation materials.

Important:

Do not add medications to a blood component through the blood administration line unless specifically permitted by established policy and compatibility guidance.

32. Blood Transfusion Procedure

Step 1: Verify the prescription/order.

Step 2: Confirm informed consent according to local policy.

Step 3: Identify the patient using the required identifiers.

Step 4: Obtain and assess baseline vital signs.

Step 5: Assess IV access for patency and suitability.

Step 6: Verify the blood component and compatibility using the required bedside verification process.

Step 7: Inspect the blood bag for abnormalities.

Step 8: Connect the blood administration set using the approved technique.

Step 9: Start the transfusion according to institutional protocol.

Step 10: Observe the patient closely during the initial period, when many acute reactions become apparent.

Step 11: Monitor vital signs and clinical status according to policy.

Step 12: Complete the transfusion within the locally required time limit.

Step 13: Document the transfusion and patient response.

33. Monitoring During Blood Transfusion

Monitor for:

• Fever or chills.
• Rash or itching.
• Dyspnea.
• Chest or back pain.
• Hypotension or other hemodynamic changes.
• Nausea.
• Anxiety or sense of impending danger.
• Dark urine or other signs suggestive of hemolysis.
• Bleeding or other unexpected clinical changes.

Nursing Principle:

The patient's clinical condition is more important than the clock. If a transfusion reaction is suspected, respond immediately according to the transfusion reaction protocol rather than waiting for a scheduled observation time.

34. Blood Transfusion Reactions

Reaction	Typical Features
Acute hemolytic reaction	Fever, chills, back/flank pain, hypotension, hemoglobinuria and potentially shock
Febrile non-hemolytic reaction	Fever and chills without evidence of hemolysis
Allergic reaction	Itching, urticaria and rash
Anaphylaxis	Airway/breathing/circulation compromise, hypotension, bronchospasm or severe allergic features
TACO	Respiratory distress and pulmonary edema associated with circulatory overload
TRALI	Acute respiratory distress and non-cardiogenic pulmonary edema temporally associated with transfusion
Transfusion-associated sepsis	High fever, rigors, hypotension and other signs of infection

35. Acute Hemolytic Transfusion Reaction

An acute hemolytic transfusion reaction occurs when transfused red cells are rapidly destroyed, most commonly due to an ABO-incompatible transfusion.

Signs and Symptoms

• Fever.
• Chills.
• Chest or back/flank pain.
• Dyspnea.
• Hypotension.
• Restlessness or anxiety.
• Dark urine/hemoglobinuria.
• Possible bleeding due to severe complications.

Suspected acute hemolytic reaction:

Stop the transfusion immediately and initiate the institutional transfusion-reaction protocol.

36. Febrile Non-Hemolytic Transfusion Reaction

This reaction commonly presents with an unexpected rise in temperature, sometimes accompanied by chills or rigors.

The patient should be assessed promptly because fever during transfusion can also occur with serious reactions such as acute hemolysis or bacterial contamination.

37. Allergic Transfusion Reaction

Common Findings

• Itching.
• Urticaria.
• Flushing.
• Rash.

Severe symptoms involving breathing or circulation require emergency management.

38. Anaphylactic Transfusion Reaction

Anaphylaxis is a severe, potentially life-threatening reaction involving airway, breathing and/or circulation.

Possible Findings

• Difficulty breathing.
• Bronchospasm.
• Hypotension.
• Facial or airway swelling.
• Collapse.

Emergency:

Stop the transfusion, activate emergency assistance and follow the institution's anaphylaxis protocol immediately.

39. Transfusion-Associated Circulatory Overload (TACO)

TACO is respiratory or cardiovascular deterioration associated with excessive circulatory volume following transfusion.

Risk Factors

• Heart failure.
• Renal impairment.
• Advanced age.
• Rapid or excessive transfusion.
• Pre-existing fluid overload.

Possible Signs

• Dyspnea.
• Orthopnea.
• Crackles.
• Peripheral edema.
• Hypoxemia.

40. Transfusion-Related Acute Lung Injury (TRALI)

TRALI is an acute pulmonary complication associated temporally with transfusion and characterized by respiratory distress and pulmonary edema not primarily caused by circulatory overload.

Possible Findings

• Acute respiratory distress.
• Hypoxemia.
• Rapid onset pulmonary edema.
• Low oxygen saturation.

Key Difference:

TACO is associated with circulatory overload, whereas TRALI is not primarily caused by excessive intravascular volume.

41. Transfusion-Associated Sepsis

Bacterial contamination of a blood component can cause a severe systemic reaction.

Possible Findings

• High fever.
• Rigors.
• Hypotension.
• Tachycardia.
• Nausea or vomiting.
• Signs of shock.

This is a medical emergency requiring immediate escalation and management according to institutional protocol.

42. Immediate Management of Suspected Blood Transfusion Reaction

STOP TRANSFUSION → ASSESS ABC → KEEP IV ACCESS PATENT AS PER PROTOCOL → NOTIFY → VERIFY → SEND REQUIRED SAMPLES/BAG → DOCUMENT

General Immediate Actions

1. Stop the blood transfusion immediately when a significant reaction is suspected.

2. Assess airway, breathing and circulation.

3. Call for appropriate medical/emergency assistance.

4. Maintain IV access using the solution and method specified by the transfusion reaction protocol.

5. Recheck patient and blood product identification.

6. Notify the responsible clinician and blood bank/transfusion service according to policy.

7. Obtain required blood/urine samples or return the blood component and tubing as instructed.

8. Monitor vital signs and clinical condition closely.

9. Document the event and interventions.

Never restart the transfusion simply because symptoms appear mild.

Restarting or continuing a transfusion after a suspected reaction should only occur if specifically authorized after appropriate clinical evaluation and according to institutional transfusion policy.

43. IV Therapy and Blood Transfusion Documentation

IV Therapy Documentation

• Date and time.
• IV site.
• Catheter type/size when required.
• Number of attempts according to policy.
• Type and amount of fluid.
• Medication, concentration and dose when applicable.
• Infusion rate.
• Site condition.
• Patient response.
• Complications and interventions.

Blood Transfusion Documentation

• Patient identification.
• Blood component type.
• Unit identification number.
• Compatibility verification.
• Start and completion time.
• Baseline and required subsequent vital signs.
• Volume transfused.
• Patient response.
• Any adverse reaction.
• Actions taken if a reaction occurred.

44. Assessment Sequence in Different Situations

A. Routine IV Fluid Administration

PATIENT ID → ORDER → FLUID → VOLUME → RATE → IV SITE → PATENCY → START → MONITOR → DOCUMENT

B. IV Medication Administration

PATIENT → ALLERGY → MEDICATION → DOSE → CONCENTRATION → COMPATIBILITY → ROUTE → RATE → MONITOR

C. Suspected Infiltration

STOP INFUSION → SITE ASSESSMENT → PAIN/SWELLING → REMOVE/REPLACE AS INDICATED → DOCUMENT

D. Suspected Extravasation

STOP INFUSION → DO NOT FLUSH → FOLLOW DRUG-SPECIFIC PROTOCOL → ASPIRATE/ANTIDOTE IF INDICATED → ESCALATE → DOCUMENT

E. Suspected Blood Transfusion Reaction

STOP BLOOD → ABC → EMERGENCY HELP → MAINTAIN IV ACCESS PER PROTOCOL → RECHECK ID → NOTIFY BLOOD BANK → INVESTIGATE → DOCUMENT

F. Suspected Fluid Overload

STOP/ADJUST AS APPROPRIATE → ABC → RESPIRATORY ASSESSMENT → OXYGEN IF INDICATED → ESCALATE → MONITOR

G. Pediatric IV Therapy

WEIGHT → DOSE/RATE → FLUID BALANCE → IV SITE → PUMP SETTINGS → FREQUENT MONITORING

H. Critically Ill Patient

ABC → VITAL SIGNS → PERFUSION → IV ACCESS → FLUID/DRUG → RESPONSE → CONTINUOUS MONITORING

45. IV Therapy and Blood Transfusion Safety Checklist

• Correct patient.
• Correct prescription.
• Correct medication/fluid/blood component.
• Correct concentration.
• Correct dose or volume.
• Correct route.
• Correct rate.
• Correct IV site.
• Check allergies.
• Check compatibility.
• Use aseptic technique.
• Monitor patient response.
• Recognize complications early.
• Document accurately.

46. High-Yield Exam Points

• IV therapy delivers fluids, medications or other prescribed substances directly into the bloodstream.
• Peripheral IV cannula is commonly used for short-term IV therapy.
• Phlebitis = inflammation of the vein.
• Infiltration = leakage of non-vesicant solution into surrounding tissue.
• Extravasation = leakage of a vesicant/irritant medication into surrounding tissue.
• Never force an IV flush when resistance is present.
• Crystalloids contain small dissolved particles.
• RBCs improve oxygen-carrying capacity when clinically indicated.
• Platelets are used for selected thrombocytopenia/platelet-related indications.
• FFP provides multiple coagulation factors.
• Cryoprecipitate is particularly important as a concentrated source of fibrinogen.
• Acute hemolytic reaction can result from ABO incompatibility.
• TACO is associated with circulatory overload.
• TRALI is acute transfusion-associated lung injury not primarily caused by circulatory overload.
• Suspected serious transfusion reaction: stop the transfusion immediately and follow the institutional reaction protocol.
• Patient identification is one of the most critical steps before blood administration.
• Blood compatibility should be verified using the blood bank documentation and bedside identification process.
• Blood administration requires close monitoring, particularly during the early period after initiation.

47. One-Minute Revision

IV Therapy: Direct administration of fluids/medications into a vein.

Phlebitis: Vein inflammation.

Infiltration: Non-vesicant fluid enters tissue.

Extravasation: Vesicant/irritant enters tissue.

mL/hour: Total volume ÷ hours.

Drops/min: Volume × drop factor ÷ minutes.

RBC: Oxygen-carrying capacity.

Platelets: Platelet replacement.

FFP: Multiple coagulation factors.

Cryoprecipitate: Concentrated fibrinogen and selected factors.

Acute Hemolytic Reaction: Stop transfusion immediately.

TACO: Circulatory overload.

TRALI: Acute transfusion-related lung injury.

Golden Rule: When a serious transfusion reaction is suspected, stop the blood and activate the appropriate protocol.

Frequently Asked Questions – IV Therapy and Blood Transfusion

1. What is IV therapy?

IV therapy is the administration of fluids, medications, electrolytes, nutrients or other prescribed substances directly into a vein.

2. What is the most common complication of peripheral IV therapy?

Phlebitis and infiltration are common peripheral IV complications. The actual complication depends on the clinical situation and patient population.

3. What is infiltration?

Infiltration occurs when a non-vesicant IV solution leaks into the surrounding tissue.

4. What is extravasation?

Extravasation occurs when a vesicant or certain irritant medication leaks from the vein into surrounding tissue.

5. What should a nurse do if extravasation is suspected?

Stop the infusion immediately and follow the medication-specific extravasation protocol. Do not flush unless the applicable protocol specifically instructs it.

6. What are the major blood components?

Major components include red blood cells, platelets, plasma and cryoprecipitate. Whole blood is used selectively in specific situations.

7. What is the function of red blood cells?

Red blood cells primarily increase the blood's oxygen-carrying capacity.

8. What is TACO?

TACO stands for Transfusion-Associated Circulatory Overload and involves respiratory or cardiovascular deterioration related to circulatory volume overload following transfusion.

9. What is TRALI?

TRALI stands for Transfusion-Related Acute Lung Injury and is characterized by acute respiratory distress and pulmonary edema associated with transfusion, without circulatory overload being the primary cause.

10. What is the first action when a serious blood transfusion reaction is suspected?

Stop the transfusion immediately and begin the appropriate assessment and institutional transfusion-reaction protocol.

11. Can medication be added to a blood bag?

Routine medication addition to blood components is not recommended. Follow institutional policy and blood-bank compatibility guidance.

12. Why is patient identification important before transfusion?

Incorrect patient identification can result in administration of an incompatible blood component, which can cause a potentially life-threatening reaction.

13. What IV fluid is commonly used for intravascular volume replacement?

Isotonic crystalloids are commonly used when clinically appropriate, but the specific fluid must be selected according to the patient's condition and treatment goals.

14. Should an IV line with resistance be forcefully flushed?

No. Resistance should be assessed and the cause determined. The line should not be forcefully flushed.

15. What should be documented after blood transfusion?

Document the blood component, identification information, start and completion times, required observations/vital signs, patient response and any adverse reaction or intervention.

48. 10 MCQs for Practice

1. Which route involves administration of medication directly into a vein?

A. Intramuscular

B. Subcutaneous

C. Intravenous

D. Intradermal

2. Which finding is most suggestive of IV infiltration?

A. Cool, swollen IV site

B. Hypertension

C. Generalized rash only

D. Increased urine output

3. Phlebitis primarily refers to:

A. Inflammation of a vein

B. Pulmonary edema

C. Blood loss

D. Air in the stomach

4. Which blood component primarily increases oxygen-carrying capacity?

A. Platelets

B. Red blood cells

C. Fresh frozen plasma

D. Cryoprecipitate

5. Which blood component contains multiple coagulation factors?

A. Fresh frozen plasma

B. Red blood cells

C. Platelets only

D. Normal saline

6. A patient develops chills, fever and back pain shortly after a blood transfusion begins. What is the priority nursing action?

A. Increase the transfusion rate

B. Stop the transfusion

C. Give oral fluids

D. Ignore the symptoms

7. TACO is primarily associated with:

A. Circulatory overload

B. Hypoglycemia

C. Skin infection

D. Dehydration

8. TRALI primarily involves:

A. Acute lung injury

B. Kidney stones

C. Hypoglycemia

D. Bone marrow failure

9. What should the nurse do if there is resistance while flushing an IV catheter?

A. Forcefully flush

B. Assess the cause of resistance

C. Increase pressure immediately

D. Ignore it

10. Which step is critical before starting a blood transfusion?

A. Give the patient a meal

B. Verify patient and blood component identification/compatibility

C. Increase the IV rate immediately

D. Remove the IV cannula

49. MCQ Answers and Explanations

Question	Correct Answer	Explanation
1	C. Intravenous	Intravenous therapy delivers medication or fluids directly into a vein.
2	A. Cool, swollen IV site	Coolness, swelling and pallor are common findings associated with infiltration.
3	A. Inflammation of a vein	Phlebitis means inflammation of a vein.
4	B. Red blood cells	RBC transfusion is used to increase oxygen-carrying capacity when clinically indicated.
5	A. Fresh frozen plasma	FFP provides multiple coagulation factors.
6	B. Stop the transfusion	Fever, chills and back pain can indicate a serious transfusion reaction. The transfusion should be stopped immediately and the reaction protocol initiated.
7	A. Circulatory overload	TACO stands for Transfusion-Associated Circulatory Overload.
8	A. Acute lung injury	TRALI is Transfusion-Related Acute Lung Injury.
9	B. Assess the cause of resistance	An IV catheter should not be forcefully flushed when resistance is present.
10	B. Verify patient and blood component identification/compatibility	Correct patient identification and blood-component verification are critical to preventing incompatible transfusion.

Final Message for Nursing Students

IV therapy and blood transfusion are not simply procedures to memorize for an examination. They are high-responsibility nursing skills that require accurate assessment, infection prevention, careful verification and continuous monitoring.

Always remember that an IV line provides direct access to the circulation. A medication error, fluid error, compatibility error or failure to recognize a complication can therefore become serious very quickly.

ASSESS → VERIFY → ADMINISTER SAFELY → MONITOR → RECOGNIZE COMPLICATIONS → ACT EARLY → DOCUMENT

Safe IV therapy is not about inserting a cannula quickly; it is about protecting the patient throughout the entire therapy.

IV Therapy IV Therapy Nursing Notes Intravenous Therapy IV Cannulation IV Fluid Therapy IV Complications Phlebitis Infiltration Extravasation Blood Transfusion Blood Transfusion Nursing Blood Components Transfusion Reaction TACO TRALI Nursing Foundation BSc Nursing Notes GNM Nursing Notes NORCET Notes Nursing MCQs

Educational Disclaimer:

This article is intended for nursing education and examination preparation. Clinical IV therapy and blood transfusion must be performed only by appropriately trained healthcare professionals and according to the current prescription, blood-bank requirements, manufacturer's instructions, institutional policies and applicable clinical guidelines. Blood component compatibility, transfusion rates, monitoring schedules, IV device practices and management of complications may vary according to patient condition and local protocol. Always follow the current clinical policy used in your healthcare facility.