Question 11.C.1 · Patient parameters and lab measures
A man is 5 feet 4 inches tall and weighs 112 kg. Calculate the adjusted body weight in kg, using the Devine ideal body weight and a correction factor of 0.4. Round to one decimal place.
Is the NAPLEX hard?
It is long and it is clinical. 225 questions in 6 hours, most of them patient cases, and you cannot go back once you confirm an answer. NABP reports that 86.8% of 2025 graduates of accredited US schools passed on their first attempt, and 75.9% of 2024 graduates.
| Questions | 225: 200 scored and 25 pretest |
|---|---|
| Time | 6 hours, with two optional 10-minute breaks |
| Order | Answered in order; no going back after you confirm |
| Result | Pass or Fail; no scaled score |
| First-time pass rate, 2025 graduates | 86.8% |
What makes it hard
- Stamina: 225 questions over 6 hours, at about 96 seconds each.
- Patient cases: most questions give a profile or medical record, and the answer depends on reading it closely.
- No going back: once you confirm an answer you cannot return to it, so a stalled case costs time you need later.
- Calculations: doses, clearance, infusion rates, concentrations and pharmacokinetics appear on their own and inside cases, with only an on-screen calculator.
- Breadth: 40% of scored questions are on assessment and treatment planning across every therapeutic area.
What makes it easier
NABP publishes the content outline with the share of questions in each area, so you know where the marks are. 25 questions are unscored pretest items, and there is no scaled score to chase: the result is Pass or Fail against a fixed standard.
How to prepare
Make calculations automatic first, because they are the most checkable marks and they recur inside cases. Then work through patient cases by therapeutic area, and finish with full timed practice exams that make you answer in order. Start with the free diagnostic: your score in each area shows where to begin.
Try 3 questions
Question 23.A · Medication history and reconciliation
A 46-year-old woman on stable levothyroxine has an unexpectedly low TSH with a high free T4, yet she feels well. Her medication history reveals a new hair, skin and nail supplement containing biotin 10,000 mcg daily. Which interpretation is most appropriate?
Question 32.A.5 · Safety and effectiveness
A 69-year-old man is starting oral amiodarone for atrial fibrillation. Which baseline tests are recommended in its labeling?
Next step
Questions people ask
How many questions are on the NAPLEX?
225: 200 scored and 25 unscored pretest questions, in a 6-hour exam.
What is the NAPLEX pass rate?
NABP reports a first-time pass rate of 86.8% for 2025 graduates of ACPE-accredited US schools, 75.9% for 2024 graduates and 76.4% for 2023 graduates.
Can you go back to questions on the NAPLEX?
No. The bulletin says you cannot go back to previous questions or change your answers once you have confirmed your answer choice.
What score do you need to pass the NAPLEX?
Results are Pass or Fail, with no scaled score. The passing standard was set by a panel of pharmacy experts and is the same for every administration.