A 42-Year-Old Male Is Brought to the ER Due to Found

question 38

Multiple Choice

A 42-year-old male is brought to the ER due to found to be unresponsive. He has a history of alcohol disorder. In ER he looks disoriented, malnourished, and confused. Thiamine, Folic acid, and dextrose-containing IV fluid are given. After a few hours. He develops marked muscle weakness. On lab tests there is an obvious low serum phosphate concentration of 0.4 mg/dl (normal: 2.5-4.5) . Which of the following is the most likely cause of this patient's low serum phosphate level?

• A)Decreased renal proximal tubular reabsorption
• B)Increased colonic excretion of phosphate
• C)Increased extracellular binding with calcium
• D)Increased uptake by bone cells
• E)Redistribution of phosphate into hepatic and muscle cells

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