MLS (ASCP) Practice Test 10

10 free MLS (ASCP) practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

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Question 1 of 10

Chemistry

A confused patient has a measured serum osmolality of 330 mOsm/kg. Sodium is 140 mmol/L, glucose 90 mg/dL (5.0 mmol/L) and BUN 14 mg/dL (5.0 mmol/L). What is the osmolal gap?