7.6 Transfusion-associated Hypotension | New Zealand Blood Service
Transfusion medicine

Transfusion medicine handbook

The Transfusion Medicine Handbook is designed to assist hospital staff and other health professionals in modern Transfusion Medicine Practice.

7. Adverse Effects of Transfusion

7.6 Transfusion-associated Hypotension

Transfusion-associated hypotension (TAH) is a decrease in systolic and/or diastolic blood pressure of >30 mmHg occurring during or within one hour of completing transfusion.

Most reactions occur very rapidly within minutes of starting the transfusion and respond to ceasing the transfusion together with supportive care. The underlying condition of the patient must have been excluded as an explanation for the reaction. These may occur more frequently in patients receiving angiotensin-converting enzyme (ACE) inhibitor therapy.

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