Question

rouleaux formation is an indication of which of the following conditions?
multiple myeloma
psoriatic arthritis
hyperparathyroidism
hemolytic anemia

Explanation:

Rouleaux formation occurs when red - blood cells stack together like a stack of coins. It is often associated with conditions that increase plasma protein levels. Multiple myeloma is a cancer of plasma cells that can lead to elevated abnormal proteins in the blood, promoting rouleaux formation. Psoriatic arthritis, hyperparathyroidism, and hemolytic anemia are not typically associated with rouleaux formation due to protein - related mechanisms.

Answer:

Multiple myeloma