A patient with marked hyperproteinemia shows unexpected weak reactions with both reagent reverse-grouping cell…

Question

A patient with marked hyperproteinemia shows unexpected weak reactions with both reagent reverse-grouping cells. Microscopy suggests rouleaux. Which technique best tests whether the reactions are caused by excess plasma protein?

Accepted Answer

보기 3: Replace the patient's plasma with saline after centrifugation and repeat the reverse-grouping reactions

Saline replacement removes the protein-rich plasma while leaving the red-cell aggregates in the tube. Dispersal of rouleaux after replacement supports pseudoagglutination rather than a true antigen-antibody reaction.

Answer

보기 1: Report the patient as group AB immediately

Answer

보기 2: Add more patient plasma without changing the cell ratio

Answer

보기 4: Incubate the test at 56 C for one hour

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A patient with marked hyperproteinemia shows unexpected weak reactions with both reagent reverse-grouping cells. Microscopy suggests rouleaux. Which technique best tests whether the reactions are caused by excess plasma protein?

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