Question 1

The presence of "orange sand" in an infant's diaper is indicative of:

Accepted Answer

A)  Cystinuria 
B)  Bilirubinuria 
C)  Maple syrup urine disease 
D)  Lesch-Nyhan disease 
A)  Cystinuria 
B)  Bilirubinuria 
C)  Maple syrup urine disease 
D)  Lesch-Nyhan disease

Question 2

Select the appropriate screening test result for the following disorders:
-Homocystinuria

Accepted Answer

A)  Cyanide-nitroprusside 
B)  Acetest 
C)  Silver nitroprusside 
D)  Ehrlich reaction 
A)  Cyanide-nitroprusside 
B)  Acetest 
C)  Silver nitroprusside 
D)  Ehrlich reaction

Question 3

All of the following can be classified as metabolic rather than renal disorders except:

Accepted Answer

A)  Tyrosyluria 
B)  Maple syrup urine disease 
C)  Cystinuria 
D)  Indicanuria 
A)  Tyrosyluria 
B)  Maple syrup urine disease 
C)  Cystinuria 
D)  Indicanuria

Question 4

Types of organic acidemias can include all of the following except:

Accepted Answer

A)  5-HIAA 
B)  Isovaleric 
C)  Propionic 
D)  Methylmalonic 
A)  5-HIAA 
B)  Isovaleric 
C)  Propionic 
D)  Methylmalonic

Question 5

The presence of amino acids is of particular concern in which population?

Accepted Answer

A)  Pregnant women 
B)  Newborns 
C)  Adolescent males 
D)  Menopausal women 
A)  Pregnant women 
B)  Newborns 
C)  Adolescent males 
D)  Menopausal women

Question 6

The following urinalysis results are obtained from a newborn:
  
-Based on the information provided,what additional unusual characteristic might be found in this urine?

Accepted Answer

A)  Uric acid crystals 
B)  Renal tubular epithelial cells 
C)  Odor 
D)  Positive Clinitest 
A)  Uric acid crystals 
B)  Renal tubular epithelial cells 
C)  Odor 
D)  Positive Clinitest

Question 7

Failure of a metabolic pathway to reach completion may be caused by an inborn error of metabolism.

Accepted Answer

A) True 
 B)False

Question 8

State what action the urinalysis supervisor could take in the following situations:
-An employee reports a negative nitroso-napthol test on a suspected case of tyrosyluria.

Accepted Answer

A)  Perform an Ehrlich test 
B)  Collect a blood sample for MS/MS testing 
C)  Request a new urine specimen 
D)  Perform an Acetest 
A)  Perform an Ehrlich test 
B)  Collect a blood sample for MS/MS testing 
C)  Request a new urine specimen 
D)  Perform an Acetest

Question 9

Choose the characteristic odor for the following disorders:
-Maple syrup urine disease

Accepted Answer

A)  Mousy 
B)  Ammonia 
C)  Sulfur 
D)  Sweet 
A)  Mousy 
B)  Ammonia 
C)  Sulfur 
D)  Sweet

Question 10

The specimen of choice when testing for protoporphyrin is:

Accepted Answer

A)  Blood 
B)  Urine 
C)  Bile 
D)  Feces 
A)  Blood 
B)  Urine 
C)  Bile 
D)  Feces

Question 11

The appearance of abnormal metabolites in the urine due to a defect categorized as an "overflow type" may be caused by all of the following except:

Accepted Answer

A)  Inborn errors of metabolism 
B)  Serum concentrations exceeding the Tm 
C)  Abnormalities in the tubular reabsorption mechanism 
D)  Disruption of normal enzyme function by exposure to toxic substances 
A)  Inborn errors of metabolism 
B)  Serum concentrations exceeding the Tm 
C)  Abnormalities in the tubular reabsorption mechanism 
D)  Disruption of normal enzyme function by exposure to toxic substances

Question 12

The presence of argentaffin cell tumors can be detected by the presence in the urine of:

Accepted Answer

A)  5-HIAA 
B)  Melanin 
C)  Homogentisic acid 
D)  Serotonin 
A)  5-HIAA 
B)  Melanin 
C)  Homogentisic acid 
D)  Serotonin

Question 13

The acid albumin CTAB test is used to test for:

Accepted Answer

A)  Carbohydrates 
B)  Fecal fats 
C)  Mucopolysaccharides 
D)  Maple syrup urine disease 
A)  Carbohydrates 
B)  Fecal fats 
C)  Mucopolysaccharides 
D)  Maple syrup urine disease

Question 14

Under normal conditions,tryptophan that is not reabsorbed in the intestine is removed from the body as:

Accepted Answer

A)  Indican in the urine 
B)  Indole in the liver 
C)  Indole in the feces 
D)  Serotonin in the urine 
A)  Indican in the urine 
B)  Indole in the liver 
C)  Indole in the feces 
D)  Serotonin in the urine

Question 15

State what action the urinalysis supervisor could take in the following situations:
-A new employee consistently obtains negative Watson-Schwartz test results on suspected cases of lead poisoning.

Accepted Answer

A)  Check the Ehrlich reagent 
B)  Confirm addition of acetylacetone 
C)  Confirm the specimen has been centrifuged 
D)  Check the employee for color-blindness 
A)  Check the Ehrlich reagent 
B)  Confirm addition of acetylacetone 
C)  Confirm the specimen has been centrifuged 
D)  Check the employee for color-blindness

Question 16

Which of the following foods contains serotonin,which can interfere with 5-HIAA testing?

Accepted Answer

A)  Apples 
B)  Pineapples 
C)  Watermelon 
D)  Oranges 
A)  Apples 
B)  Pineapples 
C)  Watermelon 
D)  Oranges

Question 17

Argentaffin cell tumors produce large amounts of serotonin.

Accepted Answer

A) True 
 B)False

Question 18

State what action the urinalysis supervisor could take in the following situations:
-Many uric acid crystals are reported in the urine of a 15-year-old boy with an unremarkable medical history,except for previous episodes of renal calculi.

Accepted Answer

A)  Check for possible cystine crystals 
B)  Check for specimen mix-up 
C)  Notify the health-care provider 
D)  Report possible Lesch-Nyhan disease 
A)  Check for possible cystine crystals 
B)  Check for specimen mix-up 
C)  Notify the health-care provider 
D)  Report possible Lesch-Nyhan disease

Question 19

Uric acid crystals are frequently seen in the urine of pediatric patients.

Accepted Answer

A) True 
 B)False

Question 20

The presence of porphobilinogen in the urine can be suspected when:

Accepted Answer

A)  Acidic urine turns a port wine color after standing 
B)  Alkaline urine turns a port wine color after standing 
C)  Freshly excreted urine is acidic and port wine in color 
D)  Freshly excreted urine is alkaline and port wine in color 
A)  Acidic urine turns a port wine color after standing 
B)  Alkaline urine turns a port wine color after standing 
C)  Freshly excreted urine is acidic and port wine in color 
D)  Freshly excreted urine is alkaline and port wine in color

The presence of "orange sand" in an infant's diaper is indicative of:

Select the appropriate screening test result for the following disorders: -Homocystinuria

All of the following can be classified as metabolic rather than renal disorders except:

Types of organic acidemias can include all of the following except:

The presence of amino acids is of particular concern in which population?

The following urinalysis results are obtained from a newborn: -Based on the information provided,what additional unusual characteristic might be found in this urine?

Failure of a metabolic pathway to reach completion may be caused by an inborn error of metabolism.

State what action the urinalysis supervisor could take in the following situations: -An employee reports a negative nitroso-napthol test on a suspected case of tyrosyluria.

Choose the characteristic odor for the following disorders: -Maple syrup urine disease

The specimen of choice when testing for protoporphyrin is:

The appearance of abnormal metabolites in the urine due to a defect categorized as an "overflow type" may be caused by all of the following except:

The presence of argentaffin cell tumors can be detected by the presence in the urine of:

The acid albumin CTAB test is used to test for:

Under normal conditions,tryptophan that is not reabsorbed in the intestine is removed from the body as:

State what action the urinalysis supervisor could take in the following situations: -A new employee consistently obtains negative Watson-Schwartz test results on suspected cases of lead poisoning.

Which of the following foods contains serotonin,which can interfere with 5-HIAA testing?

Argentaffin cell tumors produce large amounts of serotonin.

State what action the urinalysis supervisor could take in the following situations: -Many uric acid crystals are reported in the urine of a 15-year-old boy with an unremarkable medical history,except for previous episodes of renal calculi.

Uric acid crystals are frequently seen in the urine of pediatric patients.

The presence of porphobilinogen in the urine can be suspected when:

Safety and Quality Assessment

Introduction to Urinalysis

Renal Function

Physical Examination of Urine

Chemical Examination of Urine

Microscopic Examination of Urine

Renal Disease

Cerebrospinal Fluid

Semen

Synovial Fluid

Serous Fluid

Amniotic Fluid

Fecal Analysis

Vaginal Secretions

Filters

Exam 8: Urine Screening for Metabolic Disorders

The presence of "orange sand" in an infant's diaper is indicative of:

Select the appropriate screening test result for the following disorders: -Homocystinuria

All of the following can be classified as metabolic rather than renal disorders except:

Types of organic acidemias can include all of the following except:

The presence of amino acids is of particular concern in which population?

The following urinalysis results are obtained from a newborn: -Based on the information provided,what additional unusual characteristic might be found in this urine?

Failure of a metabolic pathway to reach completion may be caused by an inborn error of metabolism.

State what action the urinalysis supervisor could take in the following situations: -An employee reports a negative nitroso-napthol test on a suspected case of tyrosyluria.

Choose the characteristic odor for the following disorders: -Maple syrup urine disease

The specimen of choice when testing for protoporphyrin is:

The appearance of abnormal metabolites in the urine due to a defect categorized as an "overflow type" may be caused by all of the following except:

The presence of argentaffin cell tumors can be detected by the presence in the urine of:

The acid albumin CTAB test is used to test for:

Under normal conditions,tryptophan that is not reabsorbed in the intestine is removed from the body as:

State what action the urinalysis supervisor could take in the following situations: -A new employee consistently obtains negative Watson-Schwartz test results on suspected cases of lead poisoning.

Which of the following foods contains serotonin,which can interfere with 5-HIAA testing?

Argentaffin cell tumors produce large amounts of serotonin.

State what action the urinalysis supervisor could take in the following situations: -Many uric acid crystals are reported in the urine of a 15-year-old boy with an unremarkable medical history,except for previous episodes of renal calculi.

Uric acid crystals are frequently seen in the urine of pediatric patients.

The presence of porphobilinogen in the urine can be suspected when:

Safety and Quality Assessment

Introduction to Urinalysis

Renal Function

Physical Examination of Urine

Chemical Examination of Urine

Microscopic Examination of Urine

Renal Disease

Cerebrospinal Fluid

Semen

Synovial Fluid

Serous Fluid

Amniotic Fluid

Fecal Analysis

Vaginal Secretions

Filters