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Blood Transfusion
Reactions & Immediate Actions

Recognize the warning signs of transfusion reactions and master the life-saving first steps every nurse must take.

NCLEX-RN

Why This Matters

A transfusion reaction is the body's adverse response to transfused blood or its components. Reactions can range from a mild fever to a fatal hemolytic crisis within minutes.

Key Terms

Hemolytic Reaction
Destruction of red blood cells, usually from ABO incompatibility. The most lethal type.
Febrile Reaction
Most common reaction. Fever and chills from recipient antibodies to donor white cells.
Allergic Reaction
Hives, itching, and flushing from plasma proteins in donor blood.

Four Major Reaction Types

Acute Hemolytic Fever, chills, flank pain, dark urine, hypotension Cause: ABO mismatch Febrile Non-Hemolytic Fever, chills, headache, flushing Cause: WBC antibodies Allergic Hives, itching, flushing, wheezing Cause: plasma proteins Circulatory Overload Dyspnea, crackles, JVD, hypertension Cause: too much / too fast

The Golden Rule

Stopping the infusion halts further entry of the offending blood and is the single most important step in preventing harm. Never "wait and see" with a suspected reaction.

Immediate Action Sequence

1
STOP the transfusion at once.
2
Keep the IV line open with normal saline using new tubing.
3
Notify the provider and the blood bank.
4
Stay with the patient and monitor vital signs closely.
5
Recheck the blood bag & patient identifiers; send bag and tubing back to the blood bank.

Why Normal Saline?

After stopping, the nurse maintains IV access with 0.9% normal saline on fresh tubing, not the existing transfusion tubing.

Isotonic & Compatible
Normal saline does not lyse red cells. Dextrose solutions cause hemolysis and are never used with blood.
New Tubing
Prevents infusing the residual blood left in the old line into the patient.

Hemolytic vs. Febrile

Hemolytic Febrile
OnsetMinutes (rapid)30 min to hours
CauseABO incompatibilityWBC antibodies
SeverityLife-threateningUsually mild
HallmarkFlank pain, dark urineFever & chills only
ActionStop, treat shockStop, give antipyretics

Monitoring Approach

1
Verify two patient identifiers and crossmatch with a second RN before starting.
2
Take baseline vital signs just before infusion.
3
Start slowly and stay at the bedside for the first 15 minutes.
4
Recheck vitals at 15 minutes, then per protocol. Complete within 4 hours.

Worked Example 1

Ten minutes into a packed RBC transfusion, a patient reports low back pain and feels chilled. Temperature has risen from 37.0 to 38.4°C and BP has dropped.

Worked Example 2

During a transfusion, a patient develops generalized hives and itching but has stable vital signs and no respiratory distress.

Worked Example 3

An older adult receiving blood develops dyspnea, crackles in the lungs, distended neck veins, and rising blood pressure 45 minutes in.

Common Mistakes

✕ Notifying first
Calling the provider before stopping the transfusion. Stop the blood FIRST, then notify.
✕ Flushing with old tubing
Running saline through the existing blood tubing pushes more blood into the patient.
✕ Discarding the bag
Throwing away the blood bag and tubing. Both must go back to the blood bank for analysis.
✕ Using dextrose
Hanging dextrose solution with blood causes hemolysis. Only 0.9% normal saline is compatible.

Reaction Summary

Type Key Signs Priority Action
HemolyticFlank pain, dark urineStop, treat shock
FebrileFever, chillsStop, antipyretics
AllergicHives, itchingStop, antihistamines
TACODyspnea, crackles, JVDUpright, oxygen, diuretic

Question 1 of 5

A nurse suspects a transfusion reaction. What is the first action?

Question 2 of 5

After stopping a transfusion, which IV fluid should the nurse hang to keep the line open?

Question 3 of 5

A patient reports flank pain and dark urine minutes into a transfusion. This indicates which reaction?

Question 4 of 5

An older adult develops dyspnea, crackles, and distended neck veins during transfusion. The nurse should:

Question 5 of 5

After a reaction occurs and the transfusion is stopped, what should the nurse do with the blood bag and tubing?

You're Ready

Remember the priority: STOP the transfusion, keep the line open with normal saline, notify, monitor, and return the bag. Stay calm, act fast.