What is the principle of the LAP (leukocyte alkaline phosphatase) stain?
A) The LAP within the cell hydrolyzes the substrate naphthol AS-BI phosphate, which couples with the dye (fast red violet LB salt) and precipitates out.
B) The LAP within the cell hydrolyzes the mitochondria, which couples with the dye (fast violet LB salt) and precipitates out.
C) The LAP within the cell hydrolyzes the nuclear chromatin, which couples with the dye (fast violet LB salt) and precipitates out.
D) All of the above
E) None of the above
Correct Answer:
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Q7: What is the specimen of choice for
Q8: The enzyme peroxidase is present in the
Q9: The peroxidase reaction is positive for _
Q10: The peroxidase reaction parallels the Sudan black
Q11: Red blood cells that stain peroxidase positive
Q13: Only segmented neutrophils and _ are scored
Q14: What is the specimen of choice for
Q15: The purpose of the leukocyte alkaline phosphatase
Q16: An LAP classification score of 2 corresponds
Q17: What is the principle of the peroxidase
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