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Urinalysis and body fluids Questions and Correct Answers | Latest Update
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A 3-year old girl was brought to the ER with a temperature of 103ºF, lethargy, and cervical rigidity. Three tubes of cloudy CSF were delivered to the Lab, and preliminary test results showed: WBC: 4,500/µL Differential: 88% neutrophilsGlucose: 15 mg/dL 12% lymphocytesProtein: 140 mg/dLGram...

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  • September 10, 2024
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  • 2024/2025
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  • a 3 year old girl was brought to the er with a tem

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2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!



Urinalysis and body fluids Questions and
Correct Answers | Latest Update
A 3-year old girl was brought to the ER with a temperature of 103ºF, lethargy, and cervical

rigidity. Three tubes of cloudy CSF were delivered to the Lab, and preliminary test results

showed:

WBC: 4,500/µL Differential: 88% neutrophilsGlucose: 15 mg/dL 12% lymphocytesProtein:

140 mg/dLGram stain: No organisms observed

From these results, what preliminary diagnosis SHOULD the physician consider?

✓ -:- bacterial meningitis


What is the MOST probable condition when a clean-catch urine specimen gave these

results:Appearance = cloudy, amber

pH 5.0Specific Gravity = 1.015,Protein = 1+Glucose = negativeOccult Blood = traceNitrite

= positive

Microscopic = many bacteria and 30 - 40 WBC/HPF.

✓ -:- urinary tract infection


A spinal fluid that is slightly hazy is briefly examined microscopically. The technologist

performing the count decides to make a 1:10 dilution using 30 µL of sample. What volume

of diluent should be used?

✓ -:- 270 uL




1|P a g e | G r a d eA + | 2 0 2 0 2 5

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

Which of the following tests included on a urine reagent strip would never be reported out

as negative?

✓ -:- urobilinogen


Which of the following best defines specific gravity:

✓ -:- The density of a solution compared to the density of water


Which of the following methods would be used to confirm the presence of Bence-Jones

protein in the urine:

✓ -:- Urine protein electrophoresis or immunoelectrophoresis


The following urine test results were obtained from a 6-month-old African American infant

who experiences vomiting and diarrhea after milk ingestion and has failed to gain weight:

pH: 5.0Protein: NegativeGlucose: NegativeKetones: NegativeBlood: NegativeBilirubin:

NegativeNitrite: NegativeUrobilinogen: 0.1 EU/dLClinitest: 2+

These results are clinically significant in which of the following disorders?

✓ -:- galactosemia


A technologist decides to make a 1:20 dilution of cerebrospinal fluid (CSF) after briefly

evaluating a portion of the sample microscopically. After making the dilution and charging

the chambers, the number of observed cells in each of the large squares of the

hemocytometer is >100. What should the technologist do to obtain the most accurate

count?

✓ -:- make a larger dilution


2|P a g e | G r a d eA + | 2 0 2 0 2 5

, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

Parasites that may be found in urinary sediment include all of the following EXCEPT:

✓ -:- plasmodium malariae


Fetal lung maturity can be determined from amniotic fluid because the surfactant is

PRIMARILY composed of:

✓ -:- Phosphatidylcholine and other phospholipids


What is the identification of these crystals seen in a urine with an acid pH?

✓ -:- calcium oxalate


A reagent strip test for hemoglobin has been reported positive. Microscopic examination

fails to yield red blood cells. This patient's urine condition can be called:

✓ -:- hemoglobinuria


Effusion fluids are classified as transudates or exudates. According to Light's criteria, all of

the following applies to an exudate EXCEPT?

✓ -:- Pleural fluid lactate dehydrogenase (LDH) <2/3 the normal upper limit for
serum


Semi-automated and automated urine chemical reagent strip readers:

✓ -:- Remove subjectivity allowing for better reproducibility


All of the following are methods employed for measuring the specific gravity of urine,

EXCEPT?

✓ -:- Osmolality


3|P a g e | G r a d eA + | 2 0 2 0 2 5

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