The Laboratory Professional Notes About 20% Spherocytes on a Peripheral

question 10

Multiple Choice

The laboratory professional notes about 20% spherocytes on a peripheral blood smear of a 4-year-old boy. An osmotic fragility test is performed. The control shows initial hemolysis at 0.50% NaCl and complete hemolysis at 0.35% NaCl. The patient sample has initial hemolysis 0.60% NaCl and complete hemolysis at 0.45% NaCl. What does this indicate?

• A) The patient is exhibiting increased osmotic fragility.
• B) The patient has AIHA.
• C) The patient is not exhibiting decreased osmotic fragility.
• D) The control is erroneous, so patient results are invalid.

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