University revision · Blood Transfusion Science

Whole Blood and Red Cell Concentrate

Question 1 of 16 Course: Biomedical Science(Degree)

Washed red blood cells are primarily used to prevent febrile non-hemolytic reactions. True or False?

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It is standard practice to submit three consecutive early morning sputum specimens for cytological examination. This approach increases the likelihood of obtaining a representative sample from the lower respiratory tract and improves diagnostic sensitivity. Early morning samples are preferred because they are more likely to contain material that has accumulated in the lungs overnight, providing a richer cellular yield. Collecting multiple samples reduces the chance of false-negative results due to sampling error or contamination from saliva or upper respiratory secretions. This protocol is especially critical when screening for malignancies or chronic infections.

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