RODAKS: HEMATOLOGY NEWEST 2024 2025

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RODAK'S: HEMATOLOGY NEWEST 2024 – 2025

COMPLETE 300 ACTUAL EXAM QUESTIONS

WITH CORRECT DETAILED ANSWERS ( VERIFIED

ANSWERS) RATED A+

What is the most common clinical application of flow cytometry?

• Diagnosis of platelet disorders
• Detection of geomaterial hemorrhage
• Diagnosis of leukemias and lymphomas
• Differentiation of anemias - Correct Answer - c. Diagnosis of leukemias and

lymphomas

Which of the following is true of CD45 antigen?

• It is present on every cell subpopulation in the bone marrow.
• It is expressed on all hematopoietic cells, with the exception of megakaryocytes and

late erythroid precursors.

• It is not measured routinely in flow cytometry.
• It may be present on nonhematopoietic cells. - Correct Answer - b. It is expressed on

all hematopoietic cells, with the exception of megakaryocytes and late erythroid precursors.

Erythroid precursors are characterized by the expression of:

• CD71
• CD20
• CD61
• CD3 - Correct Answer - a. CD71
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In Figure 28.2A, the cell population colored in aqua represents:

• Monocytes
• Nonhematopoietic cells
• Granulocytes
• Lymphocytes - Correct Answer - d. Lymphocytes

Antigens expressed by B-LL include:

• CD3, CD4, and CD8
• CD19, CD34, and CD10
• There are no antigens specific for B-LL.
• Myeloperoxidase - Correct Answer - b. CD19, CD34, and CD10

Which of the following is true of flow cytometric gating?

• It is best defined as selection of a target population for flow cytometric analysis.
• It can be done only at the time of data acquisition.
• It can be done only at the time of final analysis and interpretation of flow cytometric

data.

• It is accomplished by adjusting flow rate. - Correct Answer - a. It is best defined as

selection of a target population for flow cytometric analysis.

Where should alcohol and other flammable chemicals be stored?

• In an approved safety can or storage cabinet away from heat sources
• Under a hood and arranged alphabetically for ease of identification in an emergency
• In a refrigerator at 28 C to 88 C to reduce volatilization
• On a low shelf in an area protected from light - Correct Answer - a. In an approved

safety can or storage cabinet away from heat sources

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The most frequent cause of needle punctures is:

• Patient movement during venipuncture
• Improper disposal of phlebotomy equipment
• Inattention during removal of needle after venipuncture
• Failure to attach needle firmly to syringe or tube holder - Correct Answer - b.

Improper disposal of phlebotomy equipment

Under which of the following circumstances would a SDS be helpful?

• A phlebotomist has experienced a needle puncture with a clean needle.
• A fire extinguisher failed during routine testing.
• A pregnant laboratory employee has asked whether she needs to be concerned about

working with a given reagent.

• During a safety inspection, an aged microscope power supply is found to have a

frayed power cord - Correct Answer - c. A pregnant laboratory employee has asked whether she needs to be concerned about working with a given reagent

What class fire extinguisher would be appropriate to use on a fire in a chemical cabinet?

• Class A
• Class B
• Class C
• Class D - Correct Answer - b. Class B

According to OSHA standards, laboratory coats must be all of the following except:

• Water resistant
• Made of cloth fabric that can be readily laundered
• Long-sleeved
• Worn fully buttoned - Correct Answer - b. Made of cloth fabric that can be readily

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pg. 4 Which one of the following would NOT be part of a safety management plan?

• Job safety analysis
• Risk assessment of potential safety hazards
• Mechanism for reporting accidents
• Budget for engineering controls and personal protective equipment - Correct Answer -
• Budget for engineering controls and personal protective equipment

What is the percent transferrin saturation for a patient with total serum iron of 63 mg/dL and TIBC of 420 mg/dL? - Correct Answer - c. 15%

Referring to Figure 8.6, into which quadrant of a Thomas plot would a patient's results fall with the following test results: Soluble transferrin receptor: increased above reference interval Ferritin: decreased below reference interval Hemoglobin content of

reticulocytes: within the reference interval

• Normal iron status
• Latent iron deficiency
• Functional iron deficiency
• Iron deficiency - Correct Answer - b. Latent iron deficiency

Developing erythroblasts in the bone marrow affect the supply of body iron, both absorption and recycling, by secreting which of the following hormones?

• Erythropoietin
• Erythroferrone
• Hepcidin
• Haptoglobin - Correct Answer - b. Erythroferrone

Which of the following cells critical to iron trafficking in the body does NOT possess ferroprotein?

• Erythroblasts
• Enterocytes
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