Short answer: DHA lists 150 questions in three hours for all three. The pass score is 55 percent for a Radiographer, 50 percent for a Medical Laboratory Technologist and 60 percent for a Respiratory Therapist. The content lists have eleven, nine and eleven headings, with no weights. Technician titles are separate rows with their own scores.
What do the DHA radiographer, laboratory and respiratory exams cover?
Each title has its own row and its own heading list in DHA’s CBT Guideline, and none carries weights. This guide puts the three side by side, because people often search for them together and because they share a few headings. The counts below come from our hand-cleaned copy of the guideline, and the two-column layout can make a count off by one. Meddex is independent and is not connected to the Dubai Health Authority (DHA) or Prometric.
Key facts and where they come from
From DHA’s CBT Guideline, cover reads “Updated - Sep 2026”, read 16 and 18 October 2026.
- Radiographer (RAD5152): 150 questions, 3 hours, 55 percent. Radiography Technician (RAD5622): 150 questions, 3 hours, 50 percent.
- Medical Laboratory Technologist (LAB5631): 150 questions, 3 hours, 50 percent. Medical Laboratory Technician (LAB5601): 150 questions, 3 hours, 50 percent.
- Respiratory Therapist (RES5882): 150 questions, 3 hours, 60 percent. Respiratory Technician (RES5881): 150 questions, 3 hours, 55 percent.
- The stated duration includes registration and introduction time.
- DHA may change content, format or pass score without updating the guideline.
The three titles at a glance
Only what DHA prints is in the table.
| Title | Questions and time | Pass score | Content headings |
|---|---|---|---|
| Radiographer | 150 in 3 hours | 55 percent | Eleven |
| Medical Laboratory Technologist | 150 in 3 hours | 50 percent | Nine |
| Respiratory Therapist | 150 in 3 hours | 60 percent | Eleven |
Radiographer: the eleven headings
Patient Management, Nuclear Medicine, Radiation Protection, Operation of Equipment, X-ray and CT, Fluoroscopy, Health and Safety, General Anatomy, Patient Safety, Professionalism and Ethics, Ultrasound and MRI, and Procedure Management. Radiation protection and patient safety run through several of these, so notes on them pay off across the list.
Medical Laboratory Technologist: the nine headings
Blood Bank, Histo- and Cyto Techniques, Urinalysis and other body fluid, Microbiology, Clinical Chemistry, Laboratory Operation, Hematology, Patient Safety and Professionalism, and Immunology and Serology. This list is laboratory discipline by discipline, plus operation and safety, so a plan by bench is a natural fit.
Respiratory Therapist: the eleven headings
Patient Data, Airway Patency and Care, Assessment and Evaluation, Bronchial Hygiene Techniques, Equipment Manipulation, Troubleshooting and Quality Control, Infection Control, Mechanical Ventilation, Patient Safety, Pulmonary Rehabilitation and Home Care, Therapeutic Procedures, and Patient Education. Mechanical ventilation and equipment are the technical core, and the rest span assessment, safety and teaching.
What do they share?
Across the allied titles, infection control appears in 17 of 47 and ethics or professionalism in 22, and safety headings are common. One set of notes on infection control, patient safety and professionalism can serve several titles. The physiotherapist guide and dietitian guide show other lists, and how to find your title in the guideline explains how to read yours.
What practice content is there?
Meddex has no question bank for these titles as of the date of this page. See the allied health hub for the official facts, and check the app for current coverage. Do not use another profession’s practice content to fill gaps.
How could you order revision for each title?
DHA gives no order, so these are our suggestions.
Radiographer: start with radiation protection, patient safety and anatomy, which touch every modality, then take X-ray and CT, ultrasound and MRI, fluoroscopy and nuclear medicine in turn, and finish with procedure management and equipment.
Medical laboratory: take the large disciplines first, namely clinical chemistry, haematology, microbiology and blood bank, then the smaller ones, and keep laboratory operation and safety for daily short reviews.
Respiratory therapist: start with assessment and airway, then mechanical ventilation and equipment, then rehabilitation, education and infection control.
What we do not know
Related guide
For how pass scores differ between technician, technologist and clinical scientist levels, see DHA technician and technologist pass scores compared.
Frequently asked questions
This article is general educational guidance, not official advice. Exam rules, fees and timelines are set by the Dubai Health Authority and the test provider and can change, so always confirm the latest details on their official channels. Review of Meddex content by named, licensed clinicians is not complete yet. See how we write and check our content.
Last updated .