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Related Experiment Videos

Falsely elevated osmol gap due to hypertonic hyponatremia.

Matthew D Sztajnkrycer1, Jan M Scaglione

  • 1Department of Emergency Medicine, Mayo Clinic, Rochester, Minnesota 55905, USA.

The Journal of Emergency Medicine
|April 20, 2005
PubMed
Summary
This summary is machine-generated.

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Elevated osmol gaps can suggest toxic alcohol poisoning, but hyperglycemia can cause errors. Correcting for high blood sugar is crucial for accurate osmol gap calculations in emergency medicine.

Area of Science:

  • Clinical Chemistry
  • Toxicology
  • Emergency Medicine

Background:

  • The osmol gap is a critical indicator for diagnosing toxic alcohol poisoning.
  • Accurate calculation of the osmol gap is essential for timely and appropriate patient management.

Observation:

  • Two cases of suspected toxic alcohol ingestion were identified.
  • Erroneous osmol gap calculations were secondary to hyperglycemic hyponatremia in these cases.

Findings:

  • Hyperglycemia significantly impacts serum sodium levels.
  • This effect can lead to falsely elevated osmol gaps, mimicking toxic alcohol poisoning.

Implications:

  • Emergency department and poison control staff must recognize hyperglycemia's effect on serum sodium.

Related Experiment Videos

  • Appropriate compensation for hyperglycemia is necessary when calculating serum osmolarity to avoid misdiagnosis of toxic alcohol poisoning.