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Related Experiment Videos

50% dextrose: antidote or toxin?

R G Browning1, D W Olson, H A Stueven

  • 1Department of Emergency Medicine, Medical College of Wisconsin, Milwaukee 53226.

Annals of Emergency Medicine
|June 1, 1990
PubMed
Summary
This summary is machine-generated.

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Empiric dextrose administration for altered mental status may harm patients. A bedside glucose test should guide treatment, reserving dextrose for confirmed hypoglycemia to prevent harm.

Area of Science:

  • Emergency Medicine
  • Neuroscience
  • Clinical Pharmacology

Background:

  • Empiric 50% dextrose administration is standard for altered mental status in the ED.
  • This practice assumes glucose is harmless in non-hypoglycemic patients.
  • Emerging evidence challenges this assumption, indicating potential harm.

Purpose of the Study:

  • To re-evaluate the standard of care for empiric dextrose administration.
  • To provide evidence for altering current clinical practice regarding glucose administration.

Main Methods:

  • Review of experimental animal studies (rodent, primate) and human clinical data.
  • Analysis of glucose administration effects during various ischemic conditions.
  • Consideration of bedside glucose testing availability.

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Main Results:

  • Glucose administration before or during cerebral ischemia worsens neurologic and histologic outcomes in animal models.
  • Studies using clinically relevant doses and primate/human data support these findings.
  • Bedside glucose screening is rapid and widely available.

Conclusions:

  • Empiric glucose administration should be avoided in patients at risk for cerebral ischemia (stroke, cardiac arrest, hypotension, CPR).
  • Immediate bedside glucose testing is recommended for all patients with altered mental status.
  • 50% dextrose should be reserved for confirmed hypoglycemia to adhere to the principle of "do no harm".