urinalysis and body fluids 6th edition Chapters 1-6 Latest Version 2023 Q&A
- In the urinalysis laboratory the primary source in the chain of infection would be:
- Patients
- Needlesticks
- Specimens
- Biohazardous waste - Correct Answer C
- Leaving excess urine on the reagent strip after removing it from the specimen will:
- Cause run-over between reagent pads
- Alter the color of the specimen
- Cause reagents to leach from the pads
- Not affect the chemical reactions - Correct Answer A
1. Macroscopic screening of urine specimens is used to:
- Provide results as soon as possible
- Predict the type of urinary casts present
- Increase cost-effectiveness of urinalysis
- Decrease the need for polarized microscopy - Correct Answer A
1. The average daily output of urine is:
- 200 mL
- 500 mL
- 1200 mL
- 2500 mL - Correct Answer C
- The concentration of a normal urine specimen can be estimated by which of the
following?
- Color
- Clarity
- Foam
- Odor - Correct Answer A
1. The type of nephron responsible for renal concentration is the:
- Cortical
- Juxtaglomerular - Correct Answer B
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- An unidentified fluid is received in the laboratory with a request to determine whether
the fluid is urine or another body fluid. Using routine laboratory tests, what tests would determine that the fluid is most probably urine?
- Glucose and ketones
- Urea and creatinine
- Uric acid and amino acids
- Protein and amino acids - Correct Answer B
- Failure to mix a specimen before inserting the reagent strip will primarily affect the:
- Glucose reading
- Blood reading
- Leukocyte reading
- Both B and C - Correct Answer D
2. The best way to break the chain of infection is:
- Hand sanitizing
- Personal protective equipment
- Aerosol prevention
- Decontamination - Correct Answer A
2. The function of the peritubular capillaries is:
- Reabsorption
- Filtration
- Secretion
- Both A and C - Correct Answer D
2. The normal yellow color of urine is produced by:
- Bilirubin
- Hemoglobin
- Urobilinogen
- Urochrome - Correct Answer D
- Variations in the microscopic analysis of urine include all of the following except:
- Preparation of the urine sediment
- Amount of sediment analyzed
- Method of reporting
- Identification of formed elements - Correct Answer D
3. All of the following can cause false-negative microscopic results except:
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- Braking the centrifuge
- Failing to mix the specimen
- Dilute alkaline urine
- Using midstream clean-catch specimens - Correct Answer C
3. Blood flows through the nephron in the following order:
- Efferent arteriole, peritubular capillaries, vasa recta, afferent arteriole
- Peritubular capillaries, afferent arteriole, vasa recta, efferent arteriole
- Afferent arteriole, peritubular capillaries, vasa recta, efferent arteriole
- Efferent arteriole, vasa recta, peritubular capillaries, afferent arteriole - Correct
Answer C
- Testing a refrigerated specimen that has not warmed to room temperature will
adversely affect:
- Enzymatic reactions
- Dye-binding reactions
- The sodium nitroprusside reaction
- Diazo reactions - Correct Answer A
- The current routine infection control policy developed by CDC and followed in all
health-care settings is:
- Universal Precautions
- Isolation Precautions
- Blood and Body Fluid Precautions
- Standard Precautions - Correct Answer D
3. The presence of bilirubin in a urine specimen produces a:
- Yellow foam when shaken
- White foam when shaken
- Cloudy specimen
- Yellow-red specimen - Correct Answer A
3. The primary inorganic substance found in urine is:
- Sodium
- Phosphate
- Chloride
- Calcium - Correct Answer C
- A patient presenting with polyuria, nocturia, polydipsia, and a low urine specific
gravity is exhibiting symptoms of:
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- Diabetes insipidus
- Diabetes mellitus
- Urinary tract infection
- Uremia - Correct Answer A
4. A urine specimen containing melanin will appear:
- Pale pink
- Dark yellow
- Blue-green
- Black - Correct Answer D
- An employee who is accidentally exposed to a possible blood-borne pathogen
should immediately:
- Report to a supervisor
- Flush the area with water
- Clean the area with disinfectant
- Receive HIV prophylaxis - Correct Answer A
4. Filtration of protein is prevented in the glomerulus by:
- Hydrostatic pressure
- Oncotic pressure
- Renin
- The glomerular filtration barrier - Correct Answer D
4. The reagent strip reaction that requires the longest reaction time is the:
- Bilirubin
- pH
- Leukocyte esterase
- Glucose - Correct Answer C
4. The two factors that determine relative centrifugal force are:
- Radius of rotor head and rpm
- Radius of rotor head and time of centrifugation
- Diameter of rotor head and rpm
- RPM and time of centrifugation - Correct Answer C
5. A patient with oliguria might progress to having:
- Nocturia
- Polyuria
- Polydipsia
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