Which lab tests should be performed in symptomatic patients with ethylene glycol (EG) toxicity?

Updated: Dec 05, 2017
  • Author: Daniel C Keyes, MD, MPH; Chief Editor: Sage W Wiener, MD  more...
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The following tests should also be obtained in symptomatic patients:

  • Serum calcium level

  • Arterial blood gases

  • Urinalysis: Urine may reveal the presence of calcium oxalate crystals, a sign usually observed late in the process of intoxication. Oxalate crystals typically have the shape of a folded envelope. (See the image below.)

Oxalate crystals. Courtesy of John D Schaldenbrand Oxalate crystals. Courtesy of John D Schaldenbrand, MD, Department of Pathology, St Joseph Mercy Health System, Ann Arbor, MI.

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