Which urinalysis findings suggest metabolic acidosis?

Updated: Oct 10, 2018
  • Author: Christie P Thomas, MBBS, FRCP, FASN, FAHA; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

A urine pH is normally acidic at less than 5.0. In acidemia, the urine normally becomes more acidic. If the urine pH is above 5.5 in the face of acidemia, this finding is consistent with a type I RTA. Alkaline urine is typical in salicylate poisoning.

Patients with ethylene glycol toxicity may present with calcium oxalate crystals, which appear needle shaped, in the urine.


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