Which of the following precursor cells eventually

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ATI RN Test Bank

Which of the following precursor cells eventually give rise to the platelets?

A. Megakaryoblast B. Proerythroblast C. Myeloblast D. Lymphoblast

Correct Answer: A

Rationale: Megakaryoblasts (A) fragment into platelets. Others form RBCs (B), granulocytes (C), or lymphocytes (D).

The type of plasma protein that constitutes more than half of the total amount is:

A. globulin B. fibrinogen C. albumin D. thrombin

Correct Answer: C

Rationale: Albumin (C) is ~55% of plasma proteins.

If you give a 'unit' of blood in a blood drive and you are an average-sized adult, you have given about what percent of your blood?

A. 1% B. 5% C. 10% D. 20%

Correct Answer: C

Rationale: A unit (~500 ml) is ~10% (C) of 5L total blood volume.

Cells from which platelets are produced

A. Myeloblasts B. Megakaryocytes C. Lymphoblasts D. Proerythroblasts

Correct Answer: B

Rationale: Megakaryocytes (B) fragment into platelets.

A serious hemolytic condition caused by Rh incompatibility between mother and offspring

A. Pernicious anemia B. Hemolytic disease of the newborn C. Aplastic anemia D. Thalassemia

Correct Answer: B

Rationale: Hemolytic disease of the newborn (B) occurs with Rh mismatch.

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