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ASCP hematology Laboratory Testing Exam Questions and Correct Answers Latest Update 2024 Already Passed $8.39   Add to cart

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ASCP hematology Laboratory Testing Exam Questions and Correct Answers Latest Update 2024 Already Passed

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ASCP hematology Laboratory Testing Exam Questions and Correct Answers Latest Update 2024 Already Passed Which of the following is the formula to calculate an absolute cell count? A. Number of cells counted/total count B. Total count/number of cells counted C. 10X total count D. % of cells cou...

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  • November 6, 2024
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  • ASCP hematology Laboratory Testing
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ASCP hematology Laboratory Testing Exam Questions and Correct Answers Latest Update 2024
Already Passed

Which of the following is the formula to calculate an absolute cell count?

A. Number of cells counted/total count

B. Total count/number of cells counted

C. 10X total count

D. % of cells counted x total count - Answers D. % of cells counted x total count

A 40-year old man had an erythrocyte count of 2.5 X10(6)/uL, hematocrit of 22% and a reticulocyte
count of 2.0%. what is the patient's absolute reticulocyte count?

A. 5.0 x 10(3)/uL (5.0 x 10(9)/L)

B. 50.0 x 10(3)/uL (50.0 x 10(9)/L)

C. 500 x 10(3)/uL (500 x 10(9)/L)

D. 5000 x 10(3)/uL (5000 x 10(9)/L) - Answers B. 50.0 x 10(3)/uL (50.0 x 10(9)/L)

The mean value of a reticulocyte count on specimens of cord blood from helathy, full-term newborns is
approximetely:

A. 0.5%

B 2.0%

C. 5.0%

D. 8.0% - Answers C. 5.0% Newborns have elevated retic counts

A patient has a high cold agglutinin titer. Automated hematology analyzer results reveal an elevated
MCV, MCH and MCHC as well as a decreased RBC. Individual erythrocytes appear normal on a stained
smear but agglutinates are noted. The appropriate course of action would be to:

A. Perform the RBC, Hgb, and Hct determinations using manual methods.

B. perform the RBC determination by a manual method; us the automated results for the Hgb and Hct

C. Repeat the determinations using a microsample of diluted blood

D. Repeat the determinations using a prewarmed microsample of diluted blood - Answers D. Repeat the
determinations using a prewarmed microsample of diluted blood

Supravital staining is important for reticulocytes sice the cells must be living in order to stain the:

, A. Remaining RNA in the cell

B. Iron before it precipitates

C. Cell membrane before it dries out

D. Denatured hemoglobin in the cell - Answers A. Remaining RNA in the cell. Using supravital stain,
residual ribosomal RNA is precipitated within the reticulocytes

Which of the following is used for staining reticulocytes?

A. Giemsa stain

B. Wright stain

C. New Methylene blue

D. Prussian Blue - Answers C. New Methylene blue

Which of the following values is calculated form the red blood cell indices in an automated hematology
analyzer?

A. Red blood cell count (RBC)

B. Hematocrit

C. Mean corpuscular volume (MCV)

D. Red cell distribution width (RDW) - Answers B. Hematocrit. The calculated RBC parameters include
the hematocrit, derived from the MCV and RBC, MCH (mean corpuscular hemoglobin) which is
calculated from the hemoglobin concentration and the RBC and the MCHC, which is determined form
the hemoglobin value and the hematocrit

A hematology analyzer counts red blood cells by which method?

A. Impedence

B. Chromogenic

C. Photometric

D. Turbidimetric - Answers A. Impedence

The RDW is elevated on a CBC report. The smear would show:

A. Hypochromia

B. Anisocytosis

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