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[Severe hypophosphatemia in intensive care]

C Iermano1, L Ughi, F Aloj

  • 1Facoltà di Medicina e Chirurgia, Cattedra di Anestesia, Rianimazione e Terapia Intensiva, Università degli Studi di Napoli Federico II.

Minerva Anestesiologica
|January 1, 1995
PubMed
Summary

Severe hypophosphatemia occurred in an ICU patient with mixed acid-base disorders. Correcting phosphorus levels alongside managing acidosis and respiratory issues improved the patient

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Area of Science:

  • Biochemistry
  • Critical Care Medicine
  • Nephrology

Background:

  • Phosphorus is vital for cellular energy production (oxidative phosphorylation) and cell membrane integrity.
  • It acts as a crucial buffer in maintaining acid-base balance, especially during stress.
  • Severe hypophosphatemia can complicate critical illness and acid-base disturbances.

Observation:

  • A 71-year-old obese female ICU patient presented with dyspnea, hypoxemia, and mixed acid-base disorder.
  • Treatment included alkaline drugs, respiratory support, and various medications, alongside nutritional therapy.
  • Despite interventions, the patient developed severe hypophosphatemia (0.8 mg/dl) and elevated lactic acid (6.2 mmol/L).

Findings:

  • The patient's hypophosphatemia was attributed to diuretic therapy, acidosis management, and reduced phosphorus intake.

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  • Mixed acid-base disorder persisted, with metabolic and chronic respiratory acidosis, and elevated blood lactic acid.
  • Adjusting phosphorus levels normalized phosphatemia and led to significant clinical improvement.

    • Implications:

    • Highlights the critical role of phosphorus in critically ill patients with acid-base imbalances.
    • Emphasizes the need for vigilant phosphorus monitoring and management during intensive care.
    • Suggests that timely correction of hypophosphatemia can improve outcomes in complex ICU cases.