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Mohamed Magdy: Blood Transfusion Reactions – High-Yield Summary
Mohamed Magdy/LinkedIn
Nov 5, 2026, 11:56

Mohamed Magdy: Blood Transfusion Reactions – High-Yield Summary

Mohamed Magdy, Physician at Ministry of Health Oman, shared a post on LinkedIn:

“Blood Transfusion Reactions – High-Yield Summary

Acute Reactions (during or within 24 hours)

1. Acute Hemolytic Reaction (ABO mismatch)

  • Fever, back pain, hypotension, hemoglobinuria, DIC.
  • Positive DAT, increased LDH, decreased haptoglobin.

2. Febrile Non-Hemolytic (FNHTR)

  • Fever and chills without hemolysis.
  • Prevention: Leukoreduced blood.

3. Allergic Reaction

  • Urticaria, itching, flushing.
  • Treatment: Antihistamines if mild.

4. Anaphylaxis

  • IgA deficiency, bronchospasm, hypotension, shock.
  • Treatment: IM epinephrine.

5. TRALI

  • Acute hypoxemia within 6 hours.
  • Bilateral infiltrates, non-cardiogenic pulmonary edema.
  • Treatment: Respiratory support.

6. TACO

  • Fluid overload, hypertension, raised JVP, pulmonary edema.
  • BNP often elevated.
  • Treatment: Oxygen and diuretics.

7. Septic Reaction

  • High fever, rigors, hypotension, shock.
  • Obtain cultures and IV antibiotics.

Delayed Reactions (days to weeks)

  • DHTR: Falling Hb, jaundice, positive DAT.
  • TA-GVHD: Fever, rash, diarrhea, hepatitis, pancytopenia.
  • PTP: Severe thrombocytopenia 5–10 days after transfusion – IVIG.
  • Iron overload: Repeated transfusions – cardiac and liver damage; iron chelation.
  •  Alloimmunization: Antibodies against RBC antigens – future transfusion complications.

TRALI vs TACO – Exam Favorite

  • Feature| TRALI| TACO
  • Cause| Lung injury| Fluid overload
  • BP| Low/normal| High
  • JVP| Normal| Raised
  • BNP| Usually normal| Elevated
  • Diuretics| No routine benefit| Beneficial

Most Important: First Action

  • STOP transfusion immediately.
  • Maintain IV access with normal saline using new tubing.
  • Assess ABCs and vital signs.
  • Notify physician and blood bank.
  • Send appropriate samples for investigation.

Memory Pearls

  • Back pain and dark urine – Acute hemolysis.
  • Fever only – FNHTR.
  • Itching plus urticaria – Allergy.
  • Hypoxemia plus bilateral infiltrates – TRALI.
  • Hypertension plus raised JVP – TACO.
  • Rash plus diarrhea plus pancytopenia – TA-GVHD.
  • Delayed thrombocytopenia – PTP.”

Mohamed Magdy: Blood Transfusion Reactions – High-Yield Summary

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Blood Transfusion Health Hematology Hemostasis Hemostasis News Hemostasis Today Medicine Mohamed Magdy TA-GVHD TACO thrombosis TRALI
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