Low urine output/fluid overload/SiADH results in ______ specific gravity.

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Prepare for the Mark Klimek Electrolytes and Endocrine Test. Utilize flashcards, multiple choice questions, and detailed explanations for each query to enhance your understanding. Ace your exam!

Multiple Choice

Low urine output/fluid overload/SiADH results in ______ specific gravity.

Explanation:
Excess ADH from SIADH makes the kidneys reabsorb water, so urine becomes more concentrated even though there’s fluid overload. That increased water reabsorption raises urine osmolarity and, correspondingly, the urine specific gravity. So, despite low urine volume, the urine is concentrated, giving a high specific gravity. A low or normal value wouldn’t match the ADH-driven concentrating effect, and variability isn’t typical of SIADH.

Excess ADH from SIADH makes the kidneys reabsorb water, so urine becomes more concentrated even though there’s fluid overload. That increased water reabsorption raises urine osmolarity and, correspondingly, the urine specific gravity. So, despite low urine volume, the urine is concentrated, giving a high specific gravity. A low or normal value wouldn’t match the ADH-driven concentrating effect, and variability isn’t typical of SIADH.

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