Question 1

Which of the following statements concerning measurement of specific gravity by refractometer is not true?

Accepted Answer

A)  The refractometer must be calibrated after every specimen. 
B)  This method is not affected by the temperature of the specimen. 
C)  This method measures dissolved particles in the urine. 
D)  The method requires less than 1 mL of urine. 
A)  The refractometer must be calibrated after every specimen. 
B)  This method is not affected by the temperature of the specimen. 
C)  This method measures dissolved particles in the urine. 
D)  The method requires less than 1 mL of urine.

Question 2

A urine specific gravity measured by refractometer is 1.028,and the urine temperature is 29℃.The specific gravity should be reported as:

Accepted Answer

A)  1.020 
B)  1.025 
C)  1.028 
D)  1.031 
A)  1.020 
B)  1.025 
C)  1.028 
D)  1.031

Question 3

Match the following urine colors with their cause.(Some answer options may be used twice or not at all):
-Bilirubin

Accepted Answer

A) Amber 
B) Green 
C) Pale yellow 
D) Black 
E) Red
F)Dark yellow 
A) Amber 
B) Green 
C) Pale yellow 
D) Black 
E) Red
F)Dark yellow

Question 4

A supervisor should be concerned if a specific gravity reading of 1.008 is reported on a turbid urine specimen.

Accepted Answer

A) True 
 B)False

Question 5

The pigment responsible for a pink precipitate in refrigerated urine is:

Accepted Answer

A)  Uroerythrin 
B)  Urochrome 
C)  Bilirubin 
D)  Biliverdin 
A)  Uroerythrin 
B)  Urochrome 
C)  Bilirubin 
D)  Biliverdin

Question 6

Indicate whether each of the following substances causes clinically significant or nonsignificant urine turbidity:
-Squamous epithelial cells

Accepted Answer

A) Significant 
B) Nonsignificant 
A) Significant 
B) Nonsignificant

Question 7

Match the following urine colors with their cause.(Some answer options may be used twice or not at all):
-Pseudomonas infection

Accepted Answer

A) Amber 
B) Green 
C) Pale yellow 
D) Black 
E) Red
F)Dark yellow 
A) Amber 
B) Green 
C) Pale yellow 
D) Black 
E) Red
F)Dark yellow

Question 8

Match the following urine colors with their cause.(Some answer options may be used twice or not at all):
-Clorets

Accepted Answer

A) Amber 
B) Green 
C) Pale yellow 
D) Black 
E) Red
F)Dark yellow 
A) Amber 
B) Green 
C) Pale yellow 
D) Black 
E) Red
F)Dark yellow

Question 9

A urine specimen that remains at room temperature for several hours may develop a darker yellow color.

Accepted Answer

A) True 
 B)False

Question 10

A urine turns black after standing,develops a cloudy white precipitate,and has a specific gravity of 1.010.
-Based on the information provided,the primary basis for the changes that took place in this specimen is:

Accepted Answer

A)  Photo-oxidation 
B)  Exposure over time to ambient air 
C)  Specimen contamination during handling 
D)  Evaporation of specimen 
A)  Photo-oxidation 
B)  Exposure over time to ambient air 
C)  Specimen contamination during handling 
D)  Evaporation of specimen

Question 11

Slightly warming a turbid urine specimen may dissolve:

Accepted Answer

A)  Talcum powder 
B)  Amorphous urates 
C)  Amorphous phosphate 
D)  Radiographic contrast media 
A)  Talcum powder 
B)  Amorphous urates 
C)  Amorphous phosphate 
D)  Radiographic contrast media

Question 12

Match the following conditions with their urine odor (Some answer options may be used twice or not at all):
-Bacterial infection

Accepted Answer

A) Fruity 
B) Ammonia 
C) Bleach 
D) Aromatic 
A) Fruity 
B) Ammonia 
C) Bleach 
D) Aromatic

Question 13

Urine specific gravity is equally influenced by the presence of glucose and sodium.

Accepted Answer

A) True 
 B)False

Question 14

Specimens that contain intact red blood cells can be visually distinguished from specimens that contain hemoglobin because:

Accepted Answer

A)  Hemoglobin produces a brighter red color 
B)  Hemoglobin produces a cloudy pink specimen 
C)  Intact red blood cells produce a cloudy specimen 
D)  Intact red blood cells are rapidly converted to hemoglobin 
A)  Hemoglobin produces a brighter red color 
B)  Hemoglobin produces a cloudy pink specimen 
C)  Intact red blood cells produce a cloudy specimen 
D)  Intact red blood cells are rapidly converted to hemoglobin

Question 15

A urine turns black after standing,develops a cloudy white precipitate,and has a specific gravity of 1.010.
-Based on the information provided,the primary concern about this specimen is:

Accepted Answer

A)  Color 
B)  Turbidity 
C)  Specific gravity 
D)  None of the above 
A)  Color 
B)  Turbidity 
C)  Specific gravity 
D)  None of the above

Question 16

A urine specimen is diluted 1:10,and the specific gravity reads 1.006.The actual specific gravity is:

Accepted Answer

A)  1.006 
B)  1.016 
C)  1.060 
D)  10.006 
A)  1.006 
B)  1.016 
C)  1.060 
D)  10.006

Question 17

Results of a specific gravity reading obtained by refractometer in the urology clinic do not agree with the readings obtained by the laboratory's automated reagent strip reader.The laboratory should:

Accepted Answer

A)  Recalibrate the reagent strip reader 
B)  Check the calibration of the refractometer in the clinic 
C)  Request the clinic to collect new specimens 
D)  Report the results from the reagent strip reader 
A)  Recalibrate the reagent strip reader 
B)  Check the calibration of the refractometer in the clinic 
C)  Request the clinic to collect new specimens 
D)  Report the results from the reagent strip reader

Question 18

The specific gravity of urine is directly proportional to its:

Accepted Answer

A)  Turbidity 
B)  Dissolved solids 
C)  Salt content 
D)  Glucose content 
A)  Turbidity 
B)  Dissolved solids 
C)  Salt content 
D)  Glucose content

Question 19

The density of a urine specimen can affect the frequency of a sound wave.

Accepted Answer

A) True 
 B)False

Question 20

The presence of a white precipitate in freshly voided urine can be caused by:

Accepted Answer

A)  Amorphous urates in alkaline urine 
B)  Amorphous urates in acid urine 
C)  Amorphous phosphates in alkaline urine 
D)  Amorphous phosphates in acid urine 
A)  Amorphous urates in alkaline urine 
B)  Amorphous urates in acid urine 
C)  Amorphous phosphates in alkaline urine 
D)  Amorphous phosphates in acid urine

Which of the following statements concerning measurement of specific gravity by refractometer is not true?

A urine specific gravity measured by refractometer is 1.028,and the urine temperature is 29℃.The specific gravity should be reported as:

Match the following urine colors with their cause.(Some answer options may be used twice or not at all): -Bilirubin

A supervisor should be concerned if a specific gravity reading of 1.008 is reported on a turbid urine specimen.

The pigment responsible for a pink precipitate in refrigerated urine is:

Indicate whether each of the following substances causes clinically significant or nonsignificant urine turbidity: -Squamous epithelial cells

Match the following urine colors with their cause.(Some answer options may be used twice or not at all): -Pseudomonas infection

Match the following urine colors with their cause.(Some answer options may be used twice or not at all): -Clorets

A urine specimen that remains at room temperature for several hours may develop a darker yellow color.

A urine turns black after standing,develops a cloudy white precipitate,and has a specific gravity of 1.010. -Based on the information provided,the primary basis for the changes that took place in this specimen is:

Slightly warming a turbid urine specimen may dissolve:

Match the following conditions with their urine odor (Some answer options may be used twice or not at all): -Bacterial infection

Urine specific gravity is equally influenced by the presence of glucose and sodium.

Specimens that contain intact red blood cells can be visually distinguished from specimens that contain hemoglobin because:

A urine turns black after standing,develops a cloudy white precipitate,and has a specific gravity of 1.010. -Based on the information provided,the primary concern about this specimen is:

A urine specimen is diluted 1:10,and the specific gravity reads 1.006.The actual specific gravity is:

Results of a specific gravity reading obtained by refractometer in the urology clinic do not agree with the readings obtained by the laboratory's automated reagent strip reader.The laboratory should:

The specific gravity of urine is directly proportional to its:

The density of a urine specimen can affect the frequency of a sound wave.

The presence of a white precipitate in freshly voided urine can be caused by:

Safety and Quality Assessment

Introduction to Urinalysis

Renal Function

Chemical Examination of Urine

Microscopic Examination of Urine

Renal Disease

Urine Screening for Metabolic Disorders

Cerebrospinal Fluid

Semen

Synovial Fluid

Serous Fluid

Amniotic Fluid

Fecal Analysis

Vaginal Secretions

Filters

Exam 4: Physical Examination of Urine

Which of the following statements concerning measurement of specific gravity by refractometer is not true?

A urine specific gravity measured by refractometer is 1.028,and the urine temperature is 29℃.The specific gravity should be reported as:

Match the following urine colors with their cause.(Some answer options may be used twice or not at all): -Bilirubin

A supervisor should be concerned if a specific gravity reading of 1.008 is reported on a turbid urine specimen.

The pigment responsible for a pink precipitate in refrigerated urine is:

Indicate whether each of the following substances causes clinically significant or nonsignificant urine turbidity: -Squamous epithelial cells

Match the following urine colors with their cause.(Some answer options may be used twice or not at all): -Pseudomonas infection

Match the following urine colors with their cause.(Some answer options may be used twice or not at all): -Clorets

A urine specimen that remains at room temperature for several hours may develop a darker yellow color.

A urine turns black after standing,develops a cloudy white precipitate,and has a specific gravity of 1.010. -Based on the information provided,the primary basis for the changes that took place in this specimen is:

Slightly warming a turbid urine specimen may dissolve:

Match the following conditions with their urine odor (Some answer options may be used twice or not at all): -Bacterial infection

Urine specific gravity is equally influenced by the presence of glucose and sodium.

Specimens that contain intact red blood cells can be visually distinguished from specimens that contain hemoglobin because:

A urine turns black after standing,develops a cloudy white precipitate,and has a specific gravity of 1.010. -Based on the information provided,the primary concern about this specimen is:

A urine specimen is diluted 1:10,and the specific gravity reads 1.006.The actual specific gravity is:

Results of a specific gravity reading obtained by refractometer in the urology clinic do not agree with the readings obtained by the laboratory's automated reagent strip reader.The laboratory should:

The specific gravity of urine is directly proportional to its:

The density of a urine specimen can affect the frequency of a sound wave.

The presence of a white precipitate in freshly voided urine can be caused by:

Safety and Quality Assessment

Introduction to Urinalysis

Renal Function

Chemical Examination of Urine

Microscopic Examination of Urine

Renal Disease

Urine Screening for Metabolic Disorders

Cerebrospinal Fluid

Semen

Synovial Fluid

Serous Fluid

Amniotic Fluid

Fecal Analysis

Vaginal Secretions

Filters