Indication for non-operability in lung cancer are:

Correct Answer: B

Rationale: Markedly decreased diffusion capacity for CO (DLCO) (B) indicates non-operability in lung cancer poor gas exchange (e.g., DLCO <40% predicted) predicts post-resection respiratory failure. Decreased compliance (A), V/Q mismatch (C), hypoventilation (D), or pulmonary hypertension impair function but aren't primary surgical contraindications DLCO directly assesses alveolar-capillary integrity. Low DLCO, from tumor or emphysema, limits resection tolerance, key in preoperative pulmonary function testing for surgical planning in chest oncology.

Correct Answer: C

Rationale: Chronic lymphocytic leukemia (CLL) features skin lesions, positive Coombs test, and hypogammaglobulinemia (C) lymphocyte proliferation causes autoimmune hemolysis (Coombs), infections (low IgG), and rare cutaneous infiltration. B12 (A) rises from binding protein, not universal. Philadelphia chromosome (B) is CML. Uric acid (D) ties to turnover, not specific. Pelger-Huet is congenital. C's triad reflects CLL's immune dysfunction, key in nursing for infection prophylaxis and anemia management.

Correct Answer: B

Rationale: Vitamin K deficiency causes bleeding manifestations (B) lacking K impairs factors II, VII, IX, X synthesis, prolonging PT (e.g., >15s), causing bruising, epistaxis. Spoon nails (A), alopecia (C), fissured tongue (D) tie to iron or B12. Jaundice fits liver failure, not K alone. Bleeding is key, guiding nursing for vitamin K injection and monitoring INR.

Correct Answer: D

Rationale: Autoimmune hemolytic anemia (AIHA) all true : positive Coombs (A antibody-coated RBCs), splenomegaly (B sequestration), jaundice (C hemolysis, bilirubin >2 mg/dL), chills/fever (D immune reaction). Warm (IgG) or cold (IgM) AIHA drives RBC destruction, key in nursing for steroids, splenectomy prep, and monitoring bilirubin.

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.