Urinalysis and Body Fluids questions for the DHA lab exam.
This section covers physical, chemical and microscopic urinalysis together with the examination of cerebrospinal, synovial, serous and seminal fluids. Candidates for the DHA lab exam should understand reagent strip principles, identify casts, cells and crystals and interpret body fluid findings in common clinical conditions.
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339
urinalysis and body fluids practice questions
- 7%
- of the exam
- 8
- subtopics
- Oct 2026
- updated
Inside this topic.
The subtopics our urinalysis and body fluids questions cover.
- Case Interpretation
- Crystals
- Casts
- Microscopy
- Physical Examination
- Chemical Examination
- Urine Crystals – Tyrosine
- Specific Gravity
Key facts to remember.
High-yield urinalysis and body fluids points to revise before the exam.
- 1
The nitrite pad detects bacteria that reduce nitrate to nitrite, mainly Gram-negative organisms such as E. coli; a negative result does not exclude infection.
- 2
Red cell casts indicate glomerular bleeding, as in glomerulonephritis, while white cell casts suggest pyelonephritis or interstitial nephritis.
- 3
The reagent strip protein pad works on the protein error of indicators and is far more sensitive to albumin than to other proteins.
- 4
Monosodium urate crystals in gout are needle-shaped and strongly negatively birefringent; calcium pyrophosphate crystals are rhomboid and weakly positively birefringent.
- 5
CSF in bacterial meningitis typically shows raised neutrophils, raised protein and glucose that is low relative to plasma glucose.
Sample questions with answers.
10 practice questions for the DHA Medical Laboratory Technologist & Technician Licensing Examination - Dubai UAE (Urinalysis and Body Fluids). Pick an answer to see if you're right, with a full explanation.
Question 1
A patient has dysuria, frequency, positive leukocyte esterase, negative nitrite, and no casts. The MOST likely diagnosis is?
Question 2
Persistently fixed specific gravity around 1.010 suggests?
Question 3
Cystine crystals indicate?
Question 4
Which crystal increases in alkaline urine after bacterial growth?
Question 5
Polarized light helps identify?
Question 6
Urine nitrite positivity is an indirect indicator of:
Question 7
Which dietary factor increases calcium oxalate crystals?
Question 8
Which organism promotes triple phosphate crystal formation?
Question 9
Glycosuria with normal blood glucose suggests?
Question 10
A positive nitrite test in urine requires which condition?
Other topics in this exam.
Questions, answered
Group crystals by the urine pH in which they usually appear and note their shape: uric acid and calcium oxalate (envelope or dumbbell) in acidic urine, triple phosphate (coffin-lid) in alkaline urine. Then learn the abnormal crystals with clinical significance, such as cystine (hexagonal plates) and tyrosine or leucine in severe liver disease. Revising with images makes recognition questions easier.
Use Light's criteria: the fluid is an exudate if the fluid-to-serum protein ratio is above 0.5, the fluid-to-serum LDH ratio is above 0.6, or fluid LDH is above two-thirds of the upper limit of normal for serum LDH. Transudates usually result from altered hydrostatic or oncotic pressure, as in heart failure or cirrhosis. Exudates result from inflammation, infection or malignancy.
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All 339 urinalysis and body fluids questions, with explanations and a readiness score for this topic.