Can blood be given immediately after removal from refrigeration?

Blood that has been stored in refrigeration must be warmed before it is administered to a patient. This is crucial because transfusing cold blood can lead to hypothermia in the patient, which can cause serious complications. The standard practice is to use blood warmers to raise the temperature of the blood to a safe level before transfusion—typically to body temperature—ensuring that the patient does not experience adverse effects.

Warming the blood helps to maintain the viability of red blood cells and supports proper physiological function once the blood is introduced into the body. Immediate administration of cold blood is contraindicated in clinical practice due to these risks.

The other options do not reflect the standard protocols for blood transfusion. While some procedures may allow very short timeframes for administration of blood products at room temperature, the practice of warming is widely consistent across healthcare settings to ensure patient safety.