AUBF Flashcards
The principle commonly used to measure
the concentration of a particular analyte in
the chemical examination of urine is:
A. Reflectance photometry
B. Digital imaging
C. Flow cytometry
D. Auto Particle recognition
Reflectance photometry
Reactivity score: “May deteriorate”
A. 1
B. 2
C. 3
D. 4
4
Correct hand washing includes all of the
following, except:
A. Using warm water
B. Rubbing to create a lather
C. Rinsing hands in a downward position
D. Turning on the water with a paper
towel
Turning on the water with a paper
towel
The best way to break the chain of infection
is:
A. Hand sanitizing
B. Personal protective equipment
C. Aerosol prevention
D. Decontamination
Hand sanitizing
Bacterial growth in an unpreserved
specimen will:
A. Decrease clarity
B. Increase bilirubin
C. Decrease pH
D. Increase glucose
Decrease clarity
If a patient fails to discard the first specimen
when collecting a timed specimen, then the:
A. Specimen must be re-collected
B. Results will be falsely elevated
C. Results will be falsely decreased
D. Both A and B
Both A and B
Stamey-Mears Test for Prostatitis: Which
specimen represents the urethral
specimen?
A. VB1
B. VB2
C. EPS
D. VB3
VB1
Which of the following ketone bodies is not
detected by the ketone reagent strip?
A. β-Hydroxybutyrate
B. Acetone
C. Acetoacetic acid
D. None of the above
β-Hydroxybutyrate
What is the correct temperature of a urine
for drug testing?
A. 32.7°C - 35.5°C
B. 35.2°C - 37.5°C
C. 32.5°C - 32.7°C
D. 32.5°C - 37.7°C
32.5°C - 37.7°C
Urine specimen collection for drug testing
requires the collector to do all of the
following except:
A. Inspect the specimen color
B. Perform reagent strip testing
C. Read the specimen temperature
D. Fill out a chain-of-custody form
Perform reagent strip testing
The renin–angiotensin–aldosterone system
is responsible for all of the following except:
A. Vasoconstriction of the afferent
arteriole
B. Vasoconstriction of the efferent arteriole
C. Reabsorbing sodium
D. Releasing aldosterone
Vasoconstriction of the afferent
arteriole
Secretion of renin is stimulated by:
A. Juxtaglomerular cells
B. Angiotensin I and II
C. Macula densa cells
D. Circulating angiotensin-converting
enzyme
Macula densa cells
Which of the following tubules is
impermeable to water?
A. Proximal convoluted tubule
B. Descending loop of Henle
C. Ascending loop of Henle
D. Distal convoluted tubule
Ascending loop of Henle
Solute dissolved in solvent will:
A. Raise the vapor pressure
B. Lower the boiling point
C. Decrease the osmotic pressure
D. Lower the freezing point
Lower the freezing point
If ammonia is not produced by the distal
convoluted tubule, the urine pH will be:
A. Acidic
B. Basic
C. Hypothenuric
D. Hypersthenuric
Basic
A patient experiencing polyuria has a low
urine osmolality even after fluid restriction
and an ADH challenge test. Which of the
following conditions might the patient
have?
A. Neurogenic diabetes insipidus
B. Nephrogenic diabetes insipidus
C. Diabetes insipidus
D. SIADH
Nephrogenic diabetes insipidus
Renal tubular acidosis can be caused by the:
A. Production of excessively acidic urine due
to increased filtration of hydrogen ions
B. Production of excessively acidic urine due
to increased secretion of hydrogen ions
C. Inability to produce an acidic urine due
to impaired production of ammonia
D. Inability to produce an acidic urine due to
increased production of ammonia
Inability to produce an acidic urine due
to impaired production of ammonia
Which of the following produces a yellow
foam when shaken?
A. Phenazopyridine
B. Albumin
C. Protein
D. None of the above
Phenazopyridine
Which of the following is an anticoagulant
that causes an orange color in alkaline urine,
and becomes colorless in acid urine?
A. Phenazopyridine
B. Phenindione
C. Nitrofurantoin
D. Acriflavine
Phenindione
Struvite calculi are frequently accompanied
by urinary infections involving the following
bacteria, except:
A. Proteus
B. Klebsiella
C. Escherichia coli
D. None of the above
Escherichia coli
When calibrating a refractometer using 9%
sucrose, it should give a specific gravity reading
of:
A. 1.000
B. 1.015
C. 1.022
D. 1.034
1.034
The principle of refractive index is to
compare:
A. Light velocity in solution with light Velocity in
solids
B. Light velocity in air with light velocity in
solutions
C. Light scattering by air with light scattering by
solutions
D. Light scattering by particles in solution
Light velocity in air with light velocity in
solutions
A specimen containing 1 g/dL protein and 1
g/dL glucose has a specific gravity reading of 1.030 using a refractometer. Calculate the
corrected reading.
A. 1.023
B. 1.027
C. 1.029
D. 1.032
1.023
Which of the following will react in the
reagent strip specific gravity test?
A. Glucose
B. Radiographic dye
C. Protein
D. Chloride
Chloride
A patient with a 2+ protein reading in the
afternoon is asked to submit a first morning
specimen. The second specimen has a negative
protein reading. This patient is:
A. Positive for orthostatic proteinuria
B. Negative for orthostatic proteinuria
C. Positive for Bence Jones protein
D. Negative for clinical proteinuria
Positive for orthostatic proteinuria
The reagent strip test for nitrite uses the:
A. Greiss reaction
B. Ehrlich reaction
C. Peroxidase reaction
D. Pseudoperoxidase reaction
Greiss reaction
The most common component of renal
calculi is:
A. Calcium oxalate
B. Magnesium ammonium phosphate
C. Cystine
D. Uric acid
Calcium oxalate
Which of the following crystals are
dumbbell-shaped and found primarily in alkaline
urine?
A. Calcium carbonate
B. Calcium oxalate
C. Calcium phosphate
D. A and B
Calcium carbonate
The primary component of urinary mucus is:
A. Bence Jones protein
B. Microalbumin
C. Uromodulin
D. Orthostatic protein
Uromodulin
Which of the following is reported as
quantity per low power field?
A. RBCs
B. Oval fat bodies
C. Abnormal crystals
D. Bacteria
Abnormal crystals
Cerebrospinal fluid is found between the:
A. arachnoid and dura mater.
B. arachnoid and pia mater.
C. pia mater and dura mater.
D. pia mater and choroid plexus.
arachnoid and pia mater.
When choroid plexus cells and ependymal
cells are present in the CSF, they:
A. Are often clinically significant.
B. Represent the demyelination of nerve tissue.
C. Can closely resemble clusters of malignant
cells.
D. Indicate breakdown of the blood-brain
barrier
Can closely resemble clusters of malignant
cells.
Which of the following proteins in the CSF is
used to monitor the integrity of the blood-brain
barrier?
A. Albumin
B. Transthyretin
C. Transferrin
D. Immunoglobulin G
Albumin
Which of the following tubes could be used
for a bacterial culture of serous fluid?
A. EDTA
B. Sodium citrate
C. Sodium fluoride
D. Sodium heparin
Sodium heparin
Thoracentesis refers specifically to the
removal of fluid from the:
A. Abdominal cavity
B. Pericardial cavity
C. Peritoneal cavity
D. Pleural cavity
Pleural cavity
Which of the following anticoagulants does
not have the potential to precipitate out in
crystalline form when used for synovial fluid
specimens?
A. Sodium citrate
B. Sodium heparin
C. Lithium heparin
D. Potassium oxalate
Sodium heparin
A synovial fluid specimen has a high cell
count and requires dilution to be counted.
Which of the following diluents should be used?
A. Normal saline
B. Dilute acetic acid (2%)
C. Dilute methanol (1%)
D. Phosphate buffer solution (0.050mol/L)
Normal saline
Differentiation of synovial fluid crystals,
based on their birefringence, is achieved using:
A. transmission electron microscopy.
B. phase-contrast microscopy.
C. direct polarizing microscopy.
D. compensated polarizing microscopy
compensated polarizing microscopy
The primary function of semen is to:
A. Nourish the spermatozoa.
B. Coagulate the ejaculate.
C. Transport the spermatozoa.
D. Stimulate sperm maturation
Transport the spermatozoa.
Which of the following conditions adversely
affects the quality of a semen specimen?
A. The use of silastic condoms
B. The time of day the collection is obtained
C. The collection of the specimen in a glass
container
D. The storage of the specimen at refrigerator
temperatures
The storage of the specimen at refrigerator
temperatures