Which of the following is not correct concerning aplastic anemia:

Correct Answer: C

Rationale: Aplastic anemia marrow failure lacks usually associated with splenomegaly' (C); spleen enlarges in hemolysis, not aplasia pancytopenia (low platelets, B) reflects marrow hypoplasia (D), often drug-induced (A, e.g., chloramphenicol) or idiopathic (E, 50%). C's falsehood contrasts aplasia's etiology, key in nursing for avoiding splenomegaly confusion and focusing on transfusion or transplant.

Correct Answer: C

Rationale: ABO incompatibility (C) is the commonest life-threatening transfusion reaction mismatched antigens (e.g., A to O) cause acute hemolysis (e.g., Hb drop, renal failure), with 1:40,000 risk. Contamination (A) is rare with screening. Rh (B) or WBC reactions are milder. Allergy (D) is non-hemolytic. ABO's severity is key, guiding nursing for crossmatch checks and reaction management.

Correct Answer: C

Rationale: Iron metabolism true: stored as hemosiderin/ferritin (A), transported by transferrin (B), slow depletion (D e.g., 3-5 years), diurnal variation (E e.g., 120 vs. 90 μg/dL) but C is false: ferrous (Fe²⁺) absorbs better than ferric (Fe³⁺), reduced in gut. C's error is key, guiding nursing for ferrous sulfate therapy.

Correct Answer: A

Rationale: Stage I Hodgkin's single node region treats with intensive irradiation (A e.g., 36 Gy), curing 90% by targeting lymphoma (e.g., mantle field). Surgery (B) is diagnostic. Chemo (C) is for advanced stages. None' (D), transfusion unfit. Radiation's efficacy is key, guiding nursing for planning and skin care.

Correct Answer: C

Rationale: Gold therapy (e.g., aurothiomalate) for rheumatoid arthritis common toxicities are dermatitis and stomatitis (C e.g., rash, mouth sores in 20-40%), from hypersensitivity. Nausea (A), agranulocytosis (B), thrombophlebitis (D), alopecia are rarer. Skin/mucosal effects are key, guiding nursing for monitoring and discontinuation.