ATI RN
Hematology Final Exam Questions Pdf Questions
Question 1 of 5
Which of the following is correct regarding prognostic factors for determining survival for a child newly diagnosed with ALL?
Correct Answer: A
Rationale: A normal or low white blood cell count at diagnosis is a favorable prognostic factor in ALL.
Question 2 of 5
Which test provides a definitive diagnosis of aplastic anemia?
Correct Answer: B
Rationale: A bone marrow aspiration is the definitive test used to diagnose aplastic anemia by evaluating marrow cellularity.
Question 3 of 5
All the following are true regarding Transient Erythroblastopenia of Childhood (TEC) EXCEPT
Correct Answer: C
Rationale: TEC is more common than DBA (A), occurs after 12 months (B), resolves in 1-2 months (D), and steroids are ineffective (E). Parvovirus B19 (C) causes aplastic crises in hemolytic anemias, not TEC, which is often idiopathic or post-viral.
Question 4 of 5
The first laboratory marker in progressive iron deficiency anemia is
Correct Answer: B
Rationale: Falling serum ferritin (B) is the earliest marker of iron deficiency, reflecting depleted stores before marrow hemosiderin (A), serum iron/TIBC changes (C), or anemia (D, E) develop.
Question 5 of 5
The best diagnostic test for paroxysmal nocturnal hemoglobinuria (PNH) is
Correct Answer: D
Rationale: Flow cytometry (D) detecting GPI-anchored protein loss (e.g., CD55, CD59) is the gold standard for PNH, more specific than HAM (A), sucrose lysis (B), complement (C), or marrow study (E).