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Related Experiment Videos

Dilutional acidosis.

D A Goodkin1, R M Raja, A Saven

  • 1Kraftsow Division of Nephrology, Albert Einstein Medical Center, Philadelphia, Pa.

Southern Medical Journal
|March 1, 1990
PubMed
Summary

Massive saline infusions can cause metabolic acidosis by diluting the body's buffers. This study documents the first human case of hypobicarbonatemia and acidosis from saline, excluding other causes.

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Area of Science:

  • Nephrology
  • Critical Care Medicine
  • Acid-Base Balance

Background:

  • Metabolic acidosis can arise from buffer dilution during rapid fluid expansion.
  • Previous evidence was limited to animal models.
  • Understanding iatrogenic causes of acidosis is crucial in critical care.

Observation:

  • A patient developed hypobicarbonatemia and metabolic acidosis.
  • This occurred following massive intravenous infusion of isotonic saline.
  • Other potential causes of acidosis were systematically excluded.

Findings:

  • The case provides the first human evidence of acidosis due to saline-induced buffer dilution.
  • Massive saline administration can lead to clinically significant electrolyte and acid-base disturbances.
  • Hypobicarbonatemia is a key indicator of this dilution effect.

Implications:

  • Clinicians should consider saline load as a potential cause of metabolic acidosis.
  • This finding may influence fluid management strategies in certain patient populations.
  • Further research into the threshold for saline-induced acidosis is warranted.

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