Verified answer (AI cross-checked + SME reviewed)

Q20 (2026, Excretory System) — Correct answer: A. Thick Ascending Limb of LOH.

NEET PG 2026Q20heart-pulse PhysiologyExcretory Systemtier-2 (3/3 verifier agreement)

An adult women is investigated for mild weakness, fatigue and occasional carpopedal spasm. Laboratory studies reveals, hypokalemia, metabolic alkalosis and high calcium in the urine. In which part of the nephron the defective channel is present?

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Memory-based reconstruction

NBE does not officially release NEET PG papers per the 2025 Supreme Court directive. This question was reconstructed from 1 community source: Collegedunia NEET PG 2026 Memory-Based Paper. Cross-verified by Claude Haiku 4.5 + Gemini 2.5 Flash + community-aggregate vote, then reviewed by a practising medical SME.

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