A 52-year-old man with severe alcoholism and malnutrition presents with weakness and respiratory difficulty five days after initiating parenteral nutrition support. Vital signs: BP 118/76 mmHg, HR 102 bpm, RR 22/min, temp 37.2°C, SpO2 98% on room air. Laboratory studies reveal serum phosphate 1.1 mg/dL (normal 2.5-4.5), with normal serum calcium and magnesium levels. Electrocardiogram shows no peaked T waves. Which complication is most likely if this electrolyte disturbance remains uncorrected?

  1. A)Central pontine myelinolysis
  2. B)Torsades de pointes from delayed repolarization
  3. C)Nephrogenic diabetes insipidus
  4. D)Respiratory muscle weakness and hemolysisGABARITO
  5. E)Pseudogout due to calcium pyrophosphate deposition

Explicação

Severe hypophosphatemia impairs ATP generation and can cause respiratory muscle weakness, rhabdomyolysis, and hemolysis. Ver explicação completa e trilha adaptativa →

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