How does hypophosphatemia occur during refeeding or DKA treatment, and when should phosphate replacement be considered?

How does hypophosphatemia occur during refeeding or DKA treatment, and when should phosphate replacement be considered?

• A. Insulin drives phosphate into cells; supplement if phosphate <1 mg/dL or large drops or symptomatic.
• B. Phosphate replacement is always given regardless of level.
• C. Phosphate replacement is never used during DKA.
• D. Phosphate rises spontaneously with fluids.

Answer: (B)