DEXA Study Guide 2026

Everything you need to pass the DEXA exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📋 DEXA Exam Format at a Glance

150
Questions
210 min
Time Limit
70.00%
Passing Score

📚 DEXA Topics to Study (19)

✍️ Sample DEXA Questions & Answers

1. Which anabolic agent used for osteoporosis treatment stimulates new bone formation by mimicking parathyroid hormone?
✓ Teriparatide (Forteo)

Teriparatide is a recombinant PTH(1-34) analog that activates osteoblasts to build new bone, making it an anabolic (bone-building) therapy.

2. Denosumab (Prolia) reduces bone resorption by inhibiting which signaling molecule?
✓ RANK ligand (RANKL)

Denosumab is a monoclonal antibody that binds and neutralizes RANKL, blocking osteoclast differentiation and activity.

3. Which DEXA QA action should be performed if the daily phantom scan image shows unusual artifacts or distortion?
✓ Halt patient scanning, document findings, and contact the service engineer

Imaging artifacts may indicate detector malfunction; patient scanning must stop until the system is inspected and cleared.

4. Which documentation practice BEST demonstrates regulatory compliance for DEXA certified professionals?
✓ Maintaining organized, dated, and signed records of all activities

Organized, dated, and signed records demonstrate systematic regulatory compliance.

5. When a DEXA professional encounters an unexpected result during a procedure, the FIRST action should be to:
✓ Stop, assess the situation, and determine whether to proceed or seek guidance

Stopping to assess unexpected results is critical for safety and quality.

6. What T-score indicates osteoporosis?
✓ Below -2.5

According to the World Health Organization (WHO) criteria, a T-score of -2.5 or lower indicates osteoporosis. This signifies significantly reduced bone mineral density, placing the individual at a high risk for fragility fractures. T-scores between -1.0 and -2.5 indicate osteopenia, or low bone mass.

🎯 Free DEXA Practice Tests

📖 DEXA Guides & Articles

Your DEXA Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation

What Practice Test Geeks adds beyond an AI chat for DEXA

An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:

  • A timed, full-length DEXA mock exam — 150 questions in 210 minutes with a 70% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
  • A fixed DEXA question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
  • Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
  • A printable DEXA cheat sheet you can print or save as a PDF.
  • DEXA flashcards built from the same question bank.
  • Free DEXA practice tests with the correct answer shown after each question.
Start the Timed DEXA Mock Exam →
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How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. iscd.org — Renewal, test delivery, eligibility, exam format, retake policy, score validity, passing score, score release, exam information · verified Oct 2026
  2. arrt.org — Exam information · verified Oct 2026
DEXA Study Guide 2026 — Exam Format, Topics & Practice Questions