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?
- A)Central pontine myelinolysis
- B)Torsades de pointes from delayed repolarization
- C)Nephrogenic diabetes insipidus
- D)Respiratory muscle weakness and hemolysisGABARITO
- 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 →