Medical Assistant Exam Questions & Answers 2026 (11–20)

Question 1

During a pediatric well-child visit, the medical assistant needs to measure the rectal temperature of a 4-month-old infant. Which thermometer lubricant and insertion depth are correct?

TheoryPractice · Accepted Answer

Water-soluble lubricant; insert 0.5 inch (1.25 cm). For rectal temperature in infants, a water-soluble lubricant is used to prevent tissue damage, and the thermometer is inserted no more than 0.5 inch (1.25 cm) in infants to avoid rectal perforation.

Question 2

Surgical asepsis differs from medical asepsis primarily in that surgical asepsis requires:

TheoryPractice · Accepted Answer

Destruction of all microorganisms including spores on objects that enter sterile body cavities. Surgical asepsis (sterile technique) eliminates all microorganisms, including bacterial spores, from instruments and fields that contact sterile tissues or body cavities, whereas medical asepsis (clean technique) only reduces the number of pathogens and does not require spore elimination.

Question 3

A patient reports that she is allergic to latex. The medical assistant should take which of the following actions FIRST before beginning any clinical procedure?

TheoryPractice · Accepted Answer

Alert all clinical staff and ensure latex-free supplies are in place before the patient enters the clinical area. Latex allergy can cause anaphylaxis; the first action is to communicate the allergy to all staff and ensure a latex-free environment — including gloves, tubing, and tourniquets — before any clinical contact with the patient.

Question 4

When measuring a patient's respiratory rate, the medical assistant should count respirations for which minimum time interval to ensure accuracy?

TheoryPractice · Accepted Answer

30 seconds, then multiply by 2. Standard practice is to count respirations for a full 30 seconds and multiply by 2 (or 60 seconds for irregular breathing), as shorter intervals increase measurement error especially when the rate is irregular.

Question 5

A medical assistant is setting up a sterile field for a minor surgical procedure. While reaching across the sterile field to place an instrument, the MA's sleeve briefly contacts the outer 1-inch border of the sterile drape. Which statement is correct?

TheoryPractice · Accepted Answer

The field remains sterile because the 1-inch border is already considered non-sterile. By convention, the outermost 1-inch border of a sterile drape is considered non-sterile and serves as a margin of safety; contact limited strictly to that border does not contaminate the remainder of the sterile field.

Question 6

A patient with severe penicillin allergy requires antibiotic therapy. The provider orders a cephalosporin. Which action should the medical assistant take FIRST?

TheoryPractice · Accepted Answer

Alert the provider to the documented penicillin allergy before preparing the medication. Cephalosporins share a beta-lactam ring with penicillin and carry a cross-reactivity risk of approximately 1–2%, so the MA must verify with the provider before proceeding — this upholds the 'right patient/right drug' verification step and protects patient safety.

Question 7

A provider orders 250 mg of amoxicillin oral suspension. The bottle on hand reads 125 mg/5 mL. How many milliliters should the medical assistant prepare?

TheoryPractice · Accepted Answer

10 mL. Using the formula Desired ÷ Have × Volume: 250 mg ÷ 125 mg × 5 mL = 10 mL — the correct dose is 10 mL.

Question 8

Which route of administration delivers medication directly into the fatty tissue just below the skin surface and is commonly used for insulin injections?

TheoryPractice · Accepted Answer

Subcutaneous. Subcutaneous injections are delivered into the adipose tissue layer beneath the dermis, making it the standard route for insulin and low-molecular-weight heparin because of its slower, sustained absorption.

Question 9

A medical assistant is preparing to give a 1 mL intramuscular injection to an average-sized adult. Which needle gauge and length combination is MOST appropriate for the ventrogluteal site?

TheoryPractice · Accepted Answer

21-gauge, 1.5-inch needle. For intramuscular injections at the ventrogluteal site in an average adult, a 21–23 gauge, 1.5-inch needle is the standard recommendation to reach the muscle belly reliably without entering periosteum.

Question 10

A patient weighing 44 kg is prescribed a medication at a dose of 5 mg/kg/day divided into two equal doses. The medication is available as 50 mg/mL. How many milliliters should be given per dose?

TheoryPractice · Accepted Answer

2.2 mL. Total daily dose = 44 kg × 5 mg/kg = 220 mg/day; per dose = 220 ÷ 2 = 110 mg; volume = 110 mg ÷ 50 mg/mL = 2.2 mL per dose.

Medical Assistant Exam Questions & Answers 2026 (11–20)

More Medical Assistant practice questions

Free practice here. Timed mocks when you are ready.