ATI RN
Hematology Exam Questions Questions
Question 1 of 5
Beside pallor, the MOST common presentation of sickle cell disease during infancy is
Correct Answer: A
Rationale: Dactylitis (A) is the most common early sign in sickle cell infants, often before age 1.
Question 2 of 5
One of the following features DOES NOT fit von-Willebrand disease
Correct Answer: D
Rationale: Impaired platelet aggregation (E) is not typical; VWD affects adhesion, not aggregation.
Question 3 of 5
A 2-year- old boy presented with recurrent skin and respiratory tract infections since early infancy, he had abnormally eczematous skin of the upper and lower limbs. His initial tests showed normal liver and renal functions with CBC showing low platelets count. He has similarly affected male cousin. Of the following, the MOST likely diagnosis is
Correct Answer: B
Rationale: Wiskott-Aldrich syndrome (B) matches infections, eczema, thrombocytopenia, and X-linked family history.
Question 4 of 5
Which of the following conditions affects partial thromboplastin time?
Correct Answer: A
Rationale: DIC (A) prolongs PTT due to factor consumption; others affect platelets or extrinsic pathway.
Question 5 of 5
Which of the following results correctly fits the expected transfusion outcome?
Correct Answer: C
Rationale: Cryoprecipitate (C) raises fibrinogen by 50-100 mg/dl; PRBC raises Hb by 1 gm/dl, platelets by 20-40,000.