The treatment of choice for male patients with moderate to severe LUTS due to BPH and enlarged prostate is

Correct Answer: B

Rationale: Combining alpha blockers (e.g., tamsulosin) with 5-alpha reductase inhibitors (e.g., finasteride) is optimal for moderate/severe LUTS with enlarged prostate alpha blockers relax, 5-ARIs shrink, addressing obstruction and growth. Alpha blockers alone relieve symptoms insufficient for size. Antimuscarinics target urgency not obstruction. PDE-5 inhibitors aid ED/LUTS less BPH-specific. Dual therapy's synergy distinguishes it, critical for comprehensive BPH management, unlike single or alternative combos.

Correct Answer: B

Rationale: Reabsorption moves solutes from tubules to peritubular capillaries, not loop (site), corpuscle (filtration), or pyramid (structure). This defines reabsorption pathway, key for reclaiming substances, contrasting with filtration sites.

Correct Answer: D

Rationale: Kidneys are retroperitoneal (behind peritoneum), not pelvic, peritoneal, or abdominal (general). This specifies anatomical position, key for surgical access, contrasting with intraperitoneal organs.

Correct Answer: C

Rationale: Uric acid arises from purine (nucleotide) breakdown, not protein (urea), carbohydrate, or pyrimidine. This specifies metabolic source, key for gout, contrasting with other pathways.

Correct Answer: C

Rationale: Bladder mucosa is transitional epithelium, adapting to stretch, not smooth muscle (wall), squamous, or columnar (glands). This specifies bladder lining, key for expansion, contrasting with other epithelia.