A 30-year-old with new-onset type 1 diabetes asks about sick-day ketone guidance. Which threshold supports DKA evaluation?...

Question

A 30-year-old with new-onset type 1 diabetes asks about sick-day ketone guidance. Which threshold supports DKA evaluation?

Accepted Answer

Blood ketones ≥3.0 mmol/L or persistent moderate/large urine ketones with symptoms warrant urgent evaluation.

Answer

Serum beta-hydroxybutyrate

Answer

Capillary ketones 0.6-1.0 mmol/L always normal.

Answer

Serum bicarbonate >18 mEq/L confirms DKA.

Answer

Only glucose level determines DKA risk.

us-usmle-step-2 MCQ (SBA): DKA Recognition-Sick-Day Rules