🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ Which urine sediment suggests a lower urinary tract infection?

A) WBC casts
B) Bacteria and WBCs
C) RBC casts
D) Hyaline casts

💡 Correct Answer: B
📖 Clinical Explanation: The presence of bacteria and WBCs without casts is characteristic of a lower urinary tract infection (cystitis).

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ What is the most common hemoglobin variant in the US?

A) HbS
B) HbC
C) HbA
D) HbE

💡 Correct Answer: C
📖 Clinical Explanation: HbA (alpha2 beta2) is the normal adult hemoglobin and the most abundant.

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ Which of the following is a cause of thrombocytopenia?

A) ITP
B) Iron deficiency
C) Polycythemia
D) Leukocytosis

💡 Correct Answer: A
📖 Clinical Explanation: Immune Thrombocytopenic Purpura (ITP) is a condition where antibodies destroy platelets, leading to low platelet counts.

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ What is the definition of a shift to the right in the CBC?

A) Increased bands
B) Increased hypersegmented neutrophils
C) Increased myeloblasts
D) Increased reticulocytes

💡 Correct Answer: B
📖 Clinical Explanation: A shift to the right refers to the presence of hypersegmented neutrophils, commonly seen in megaloblastic anemia.

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ Which test monitors the effect of warfarin?

A) PT/INR
B) APTT
C) Bleeding time
D) Platelet count

💡 Correct Answer: A
📖 Clinical Explanation: Warfarin (Coumadin) therapy is monitored using the Prothrombin Time (PT), reported as the International Normalized Ratio (INR).

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ Which of the following is a feature of a normal peripheral blood smear?

A) Presence of blasts
B) Presence of nucleated RBCs
C) Absence of immature cells
D) Presence of toxic granulation

💡 Correct Answer: C
📖 Clinical Explanation: In a healthy adult, the peripheral blood smear should not contain immature cells like blasts or nucleated RBCs.

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ What is the main component of a waxy cast?

A) Degenerated cellular casts
B) Fatty acids
C) Hemoglobin
D) Albumin

💡 Correct Answer: A
📖 Clinical Explanation: Waxy casts represent the final stage of cast degeneration, indicating severe stasis in the renal tubules.

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ Which cell is the precursor of the macrophage?

A) Monoblast
B) Myeloblast
C) Lymphoblast
D) Pronormoblast

💡 Correct Answer: A
📖 Clinical Explanation: The monoblast differentiates into the monocyte, which then migrates to tissues and becomes a macrophage.

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ Which of these is a cause of increased reticulocytes?

A) Aplastic anemia
B) Hemolytic anemia
C) Iron deficiency
D) Renal failure

💡 Correct Answer: B
📖 Clinical Explanation: In hemolytic anemia, the bone marrow increases production of RBCs to compensate for the shortened life span, leading to reticulocytosis.

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🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ What is the main component of a waxy cast?

A) Degenerated cellular casts
B) Fatty acids
C) Hemoglobin
D) Albumin

💡 Correct Answer: A
📖 Clinical Explanation: Waxy casts represent the final stage of cast degeneration, indicating severe stasis in the renal tubules.

#MedLab #MLT #ASCP #LabMCQ #MedicalLaboratory #BoardReview

🔬 HIGH-YIELD MEDICAL LAB SCIENCE MCQ
📚 Specialty: Hematology & Clinical Microscopy

❓ Which cell is the precursor of the macrophage?

A) Monoblast
B) Myeloblast
C) Lymphoblast
D) Pronormoblast

💡 Correct Answer: A
📖 Clinical Explanation: The monoblast differentiates into the monocyte, which then migrates to tissues and becomes a macrophage.

#MedLab #MLT #ASCP #LabMCQ #MedicalLaboratory #BoardReview