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Practice and exam technique

Free practice questions

Compiled by the Sitonce editorial team from PTCB's own published outline, the federal regulations named below and US Bureau of Labor Statistics dataUpdated 3 min readFacts verified 5 September 2026
The short answer

Five questions weighted roughly to the 2026 content outline, spanning all four domains, with the reasoning worked through and every federal answer cited to the regulation it comes from so you can check it yourself.

Worked properly, with the reasoning that makes the wrong options wrong.

Five questions

Question 1

A prescription for a Schedule II controlled substance is presented with two refills written on it by the prescriber. What may be dispensed?

  1. The original fill and both refills, since the prescriber authorized them
  2. The original fill and one refill
  3. The original fill only
  4. Nothing, because the refills void the prescription
Answer: C. Refilling a Schedule II prescription is prohibited outright at 21 CFR 1306.12. A prescriber cannot authorize what the regulation forbids, so the written refills create no authority. Option D overstates it: the prescription itself remains valid for the original fill.
Question 2

A child weighs 44 pounds. The order is 15 mg per kg per day, divided into three doses. The suspension is 250 mg per 5 mL. How much is given per dose?

  1. 2 mL
  2. 6 mL
  3. 4 mL
  4. 20 mL
Answer: A. Forty-four pounds divided by 2.2 is 20 kg. Twenty times 15 is 300 mg per day. Three hundred divided by 250, times 5, is 6 mL per day. Divided into three doses that is 2 mL. Option B is the daily volume, which is the distractor for anyone who missed the frequency.
Question 3

A recall is issued for a product where use is not likely to cause adverse health consequences. What class is it?

  1. Class I
  2. Class II
  3. Class III
  4. A market withdrawal
Answer: C. Class III is defined at 21 CFR 7.3 as a situation in which use of, or exposure to, a violative product is not likely to cause adverse health consequences. A market withdrawal is different: it involves a minor violation not subject to FDA legal action, or no violation at all.
Question 4

Two medications with similar names are stored next to each other. Which control most directly addresses the risk?

  1. Increasing the reorder quantity
  2. Tall man lettering and physical separation
  3. Recording the lot numbers
  4. Checking the expiration dates more often
Answer: B. This is a look-alike sound-alike risk. Tall man lettering distinguishes the names visually and separation removes the proximity that makes the selection error easy. The other options are legitimate practices addressing different risks - inventory, recall traceability and stock rotation.
Question 5

How long must controlled substance records and inventories be kept?

  1. One year
  2. At least two years
  3. Three years
  4. Five years
Answer: B. At least two years, at 21 CFR 1304.04. Note the related but separate rule at 1304.11: a biennial inventory may be taken on any date within two years of the previous one. Biennial means every two years, not twice a year, and that misreading is a common distractor elsewhere.
What free question sets usually get wrong

Weighting. Most were written before 6 January 2026, when Federal Requirements was 10 scored questions rather than 15 and Medications was 32 rather than 28. A free set will typically over-serve drug names and under-serve federal rules, which is exactly backwards for the current paper.

How to use a free set well

Work it untimed as study, then check the weighting before drawing any conclusion from your score. And keep unseen material back for a real timed paper.

Common questions

Can a Schedule II prescription be refilled?

No. Refilling is prohibited at 21 CFR 1306.12, regardless of what the prescriber wrote.

How long are controlled substance records kept?

At least two years, at 21 CFR 1304.04.

What is a Class III recall?

One where use is not likely to cause adverse health consequences, at 21 CFR 7.3.

Are free PTCB questions worth using?

As study, yes. Check the weighting before trusting a score, since most predate the 2026 outline.

What is the trap in dosing questions?

Giving the daily volume when the question asked for a single dose.

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