What is the purpose of using a technetium-99m labeled red blood cell scan in hematology?

A To detect gastrointestinal bleeding ✓
B To diagnose deep vein thrombosis
C To evaluate red blood cell survival
D To assess bone marrow function

Explanation

A technetium-99m labeled red blood cell scan is used to detect and localize gastrointestinal bleeding by visualizing the movement of labeled red blood cells through the bloodstream.

Source

American Society of Nuclear Cardiology
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium