Which substance allows the kidney to excrete acid without excessively lowering urine pH?
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Correct answer: Ammonia
Ammonia buffers hydrogen ions in the tubular fluid. This allows excretion of acid as ammonium.
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More Acid-base balance questions
- In uncompensated metabolic acidosis, arterial blood gases show:
- Which acid-base disorder is characterized by elevated bicarbonate and elevated pH?
- Hypercapnia refers to increased levels of:
- Which of the following best describes complete compensation of an acid-base disorder?
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