Study With Me : Introduction to Blood Transfusion 29
SECTION 1 : Haematology
Questions and Answers
What is the major function of red cells?
The answer: The major function of red cells is to transport oxygen from the lungs to the tissues for cellular respiration.
What is responsible for the oxygen-carrying capability of haemoglobin?
The answer: The haem portion of haemoglobin is responsible for its oxygen-carrying capability.
What is the normal in vivo survival of red cells?
The answer: The normal in vivo survival of red cells is 100–120 days.
What factors affect the in vitro survival of red cells?
The answer: In vitro survival depends on storage conditions, anticoagulant type, and preserving fluid used.
What is the expected detectability of red cells in a recipient's bloodstream 24 hours after transfusion?
The answer: Approximately 75% of red cells should still be detectable in the recipient's bloodstream 24 hours after transfusion for a unit of donated blood.