ATI RN
Hematology Exam Questions Questions
Question 1 of 5
A 10-year-old undergoes total splenectomy because of trauma. The best statement about the risk of postsplenectomy infection is that
Correct Answer: D
Rationale: Splenectomy increases lifelong infection risk (E), especially from encapsulated organisms like pneumococci, not reliably prevented by splenosis (C) or vaccines (D) alone.
Question 2 of 5
A 3.2-kg, 40-week's-gestational age male is born by spontaneous vaginal delivery to a 20-year-old white female. Past maternal medical problems reveal a history of easy bruising that required splenectomy at 18 years of age. Current coagulation studies of the mother include a prothrombin time of 12 seconds, a partial thromboplastin time of 25 seconds, fibrinogen of 300 mg/dL, and a platelet count of 175,000. At 3 hours of age, the infant is noted to have multiple petechiae and a platelet count of 15,000. The most likely diagnosis is
Correct Answer: C
Rationale: Maternal ITP (C) with splenectomy history can cause neonatal thrombocytopenia via passive antibody transfer.
Question 3 of 5
Indications for platelet transfusions in infants less than 4 months of age include all of the following platelet counts and clinical situations EXCEPT
Correct Answer: C
Rationale: Stable infants with <20 × 10â¹/L (C) don’t routinely need transfusion unless bleeding or unstable.
Question 4 of 5
Matching: Regional lymphadenopathy - Rubella
Correct Answer: B
Rationale: Rubella (B) typically causes occipital lymphadenopathy.
Question 5 of 5
Which of the following can lead to a possible diagnosis of human immunodeficiency virus (HIV) in a child? (Select one that does not apply.)
Correct Answer: D
Rationale: Children with HIV commonly exhibit frequent respiratory infections, intermittent diarrhea, and poor weight gain due to underlying cellular immunodeficiency.