100+ Free DHA Laboratory Practice Questions
Pass your DHA Medical Laboratory Technologist Licensing Assessment (LAB5631) exam on the first try — instant access, no signup required.
Why must a light-blue sodium citrate tube be filled to the indicated volume for coagulation testing?
Explore More Gulf Allied Health Licensing Exams
Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.
Key Facts: DHA Laboratory Exam
150
Questions on LAB5631
DHA Healthcare Professional Licensing Assessment Guideline CBT PDF
3 hours
Exam duration
DHA Healthcare Professional Licensing Assessment Guideline CBT PDF
50%
Pass score
DHA Healthcare Professional Licensing Assessment Guideline CBT PDF
USD 240
Exam fee
DHA Healthcare Professional Licensing Assessment Guideline CBT PDF
No % weights published
Domain weighting status
DHA CBT guideline publishes LAB5631 topic domains without percentage weights
DHA LAB5631 is the Medical Laboratory Technologist licensing CBT listed in DHA's Healthcare Professional Licensing Assessment Guideline. It is a 150-question, 3-hour Prometric/DHA assessment with USD 240 fee and 50% pass score. DHA publishes content domains but not percentage weights: Blood Bank, Urinalysis/body fluids, Clinical Chemistry, Hematology, Immunology/Serology, Histo-and Cyto Techniques, Microbiology, Laboratory Operation, and Patient Safety/professionalism. PQR April 2025 lists BSc-level laboratory education for the technologist title.
Sample DHA Laboratory Practice Questions
Try these sample questions to test your DHA Laboratory exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1A visibly hemolyzed serum specimen is most likely to cause a falsely increased result for which analyte?
2Which tube additive is specifically used to inhibit glycolysis when plasma glucose measurement will be delayed?
3Which analyte is commonly used as a marker of glomerular filtration and renal function?
4A specimen for bilirubin testing should be protected from light mainly because bilirubin is:
5An arterial blood gas shows pH 7.52, pCO2 46 mmHg, and HCO3 34 mmol/L. What is the primary acid-base disorder?
6Using Na 140 mmol/L, Cl 100 mmol/L, and HCO3 12 mmol/L, what is the calculated anion gap without potassium?
7Which cardiac marker is most specific for myocardial injury in routine modern testing?
8Hemoglobin A1c primarily reflects average glycemic exposure over approximately what period?
9A marked increase in ALT and AST with a smaller increase in alkaline phosphatase most strongly suggests which pattern?
10Lipemia most commonly interferes with spectrophotometric chemistry methods by:
About the DHA Laboratory Exam
The DHA Medical Laboratory Technologist assessment is the Dubai Health Authority licensing CBT for the LAB5631 allied health title. DHA publishes the exam as 150 questions over 3 hours with a USD 240 fee and 50% pass score. The official LAB5631 outline lists Blood Bank, Urinalysis and other body fluid, Clinical Chemistry, Hematology, Immunology and Serology, Histo-and Cyto Techniques, Microbiology, Laboratory Operation, and Patient Safety and professionalism. The DHA PQR April 2025 lists the core Medical Laboratory Technologist education route as a BSc in Medical Laboratory Technology, Medical Laboratory Science, or Biomedical Science, with licensing still subject to DHA credentialing, primary source verification, gap-of-practice rules, and any applicable exam exemption criteria.
Assessment
DHA CBT guideline lists Medical Laboratory Technologist as an Allied Health computer-based assessment with code LAB5631, 150 questions, 3-hour duration, USD 240 fee, and 50% pass score.
Time Limit
3 hours
Passing Score
50%
Exam Fee
USD 240 (Dubai Health Authority (DHA) / Prometric)
DHA Laboratory Exam Content Outline
Blood Bank
ABO and Rh testing, antibody screens and panels, crossmatch logic, component therapy, emergency release, DAT/IAT principles, transfusion reactions, and selection of antigen-negative blood.
Urinalysis and Other Body Fluids
Urine dipstick chemistry, urine microscopy, casts and crystals, CSF findings, synovial fluid crystals, pleural and other serous-fluid classification, and body-fluid preanalytical handling.
Clinical Chemistry
Electrolytes, renal and liver markers, glucose and HbA1c, bilirubin, cardiac markers, enzymes, hormones, therapeutic drug concepts, acid-base patterns, anion gap, and analytical interferences such as hemolysis and lipemia.
Hematology
CBC specimen quality, automated count flags, peripheral smear morphology, anemia classification, leukocyte differentials, platelets, PT/aPTT, DIC patterns, mixing studies, D-dimer, and anticoagulant monitoring.
Immunology and Serology
ELISA and agglutination principles, hepatitis B marker patterns, HIV fourth-generation screening, rheumatoid factor, ANA interpretation, complement, prozone, hook effect, and immunoassay format limitations.
Histo-and Cyto Techniques
Specimen fixation and processing, tissue and cytology preparation, stain quality, morphology preservation, and quality controls for microscopic diagnostic material.
Microbiology
Specimen quality, Gram stain and acid-fast stain interpretation, culture media, urine and blood culture workflows, organism identification, anaerobic culture, antimicrobial susceptibility, ESBL concepts, MALDI-TOF limitations, mycology, parasitology, and diagnostic virology.
Laboratory Operation
SOPs, quality assurance, QC rules, Levey-Jennings review, calibration, lot-to-lot verification, proficiency testing, delta checks, equipment maintenance, biological safety cabinet validation, incident handling, and corrective action.
Patient Safety and Professionalism
Patient identification, specimen labeling, critical value communication, read-back, privacy, authorized result release, scope of practice, biosafety, PPE, sharps safety, spill response, and professional incident reporting.
How to Pass the DHA Laboratory Exam
What You Need to Know
- Passing score: 50%
- Assessment: DHA CBT guideline lists Medical Laboratory Technologist as an Allied Health computer-based assessment with code LAB5631, 150 questions, 3-hour duration, USD 240 fee, and 50% pass score.
- Time limit: 3 hours
- Exam fee: USD 240
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
DHA Laboratory Study Tips from Top Performers
Frequently Asked Questions
Does the DHA Medical Laboratory Technologist exam exist?
Yes. DHA's Healthcare Professional Licensing Assessment Guideline lists Medical Laboratory Technologist under Allied Health with code LAB5631, 150 questions, 3-hour duration, USD 240 fee, and 50% pass score.
How many questions are on DHA LAB5631?
The DHA CBT guideline lists 150 questions for Medical Laboratory Technologist code LAB5631. This practice bank provides 100 original questions for study coverage; it is not copied from DHA or Prometric exam content.
What topics are listed for the DHA Medical Laboratory Technologist exam?
DHA lists Blood Bank, Urinalysis and other body fluid, Clinical Chemistry, Hematology, Immunology and Serology, Histo-and Cyto Techniques, Microbiology, Laboratory Operation, and Patient Safety and professionalism. DHA does not publish percentage weights for these LAB5631 domains in the CBT guideline.
What is the passing score for DHA LAB5631?
The DHA CBT guideline lists a 50% pass score for Medical Laboratory Technologist code LAB5631. Candidates should verify current requirements in Sheryan and Prometric before scheduling because licensing policies can change.
Is Medical Laboratory Technician the same DHA exam as Medical Laboratory Technologist?
No. DHA's CBT guideline lists Medical Laboratory Technician separately as LAB5601 and Medical Laboratory Technologist as LAB5631. This metadata targets LAB5631, while the practice questions cover broad laboratory science competencies relevant to DHA laboratory licensing preparation.
Does DHA publish pass rates for the laboratory exam?
No public DHA or Prometric source consulted for this file published LAB5631 candidate pass rates. The metadata therefore does not invent a pass rate.