Chemistry practice questions

10 questions · Untimed · Explanation after each question

Glucose, lipids, bilirubin, enzymes, proteins and nitrogen compounds, blood gases and electrolytes, endocrinology, vitamins, therapeutic drugs and toxicology. Chemistry is 20–25% of the MLT exam and 17–22% of the MLS exam.

Line drawing of an automated chemistry analyzer with a sample carousel of tubes and a reagent compartment

Before you start

Every question has four options and one correct answer. Each explanation says why the answer is right and why the most tempting wrong answer is wrong.
Check each answer to see the explanation before moving on. Checked answers cannot be changed.

Original practice questions written to the ASCP BOC MLT and MLS Examination Content Guidelines (revised June 9, 2026), not ASCP exam questions. Independent practice, not affiliated with or endorsed by the American Society for Clinical Pathology (ASCP), the ASCP Board of Certification or Pearson VUE. MLT(ASCP) and MLS(ASCP) are ASCP BOC credentials.