Question 1

The Apt test should not be performed on a black,tarry stool.

Accepted Answer

A) True 
 B)False  True

Question 2

Before and during collection of a sample for quantitative fecal fats,a patient should:

Accepted Answer

A)  Consume 100 g of fat per day 
B)  Consume less than 10 g of fat per day 
C)  Increase usual fat intake by 20% 
D)  Maintain a soft or liquid diet 
A)  Consume 100 g of fat per day 
B)  Consume less than 10 g of fat per day 
C)  Increase usual fat intake by 20% 
D)  Maintain a soft or liquid diet A

Question 3

Steatorrhea is seen in association with decreased elastase 1 in the feces.

Accepted Answer

A) True 
 B)False  True

Question 4

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility:
-Malabsorption

Accepted Answer

A)  Osmotic diarrhea 
B)  Secretory diarrhea 
C)  Altered motility 
A)  Osmotic diarrhea 
B)  Secretory diarrhea 
C)  Altered motility

Question 5

The neutral fat and split fat stains are confirmatory tests for steatorrhea.

Accepted Answer

A) True 
 B)False

Question 6

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility:
-Irritable bowel syndrome

Accepted Answer

A)  Osmotic diarrhea 
B)  Secretory diarrhea 
C)  Altered motility 
A)  Osmotic diarrhea 
B)  Secretory diarrhea 
C)  Altered motility

Question 7

A patient whose stool exhibits increased fats,undigested muscle fibers,and the inability to digest gelatin may have:

Accepted Answer

A)  Lactose intolerance 
B)  Cystic fibrosis 
C)  A duodenal ulcer 
D)  A bacterial dysentery 
A)  Lactose intolerance 
B)  Cystic fibrosis 
C)  A duodenal ulcer 
D)  A bacterial dysentery

Question 8

A bloody stool produced by a newborn should:

Accepted Answer

A)  Have an Apt test performed on it 
B)  Be tested with guaiac reagent 
C)  Be emulsified and tested for trypsin 
D)  Have a Clinitest performed on it 
A)  Have an Apt test performed on it 
B)  Be tested with guaiac reagent 
C)  Be emulsified and tested for trypsin 
D)  Have a Clinitest performed on it

Question 9

Wet preparations for the detection of fecal neutrophils are stained with:

Accepted Answer

A)  Gram stain 
B)  Wright's stain 
C)  Sudan III 
D)  Methylene blue 
A)  Gram stain 
B)  Wright's stain 
C)  Sudan III 
D)  Methylene blue

Question 10

Staphylococcal food poisoning produces secretory diarrhea and increased fecal neutrophils.

Accepted Answer

A) True 
 B)False

Question 11

A positive lactoferrin latex agglutination test can indicate which of the following?

Accepted Answer

A)  Lower GI bleeding 
B)  Biliary obstruction 
C)  Cystic fibrosis 
D)  Enteroinvasive Escherichia coli 
A)  Lower GI bleeding 
B)  Biliary obstruction 
C)  Cystic fibrosis 
D)  Enteroinvasive Escherichia coli

Question 12

Microscopic examination of stools for fecal cells provides preliminary information as to the cause of diarrhea because:

Accepted Answer

A)  Neutrophils are present in conditions caused by toxin-producing bacteria 
B)  Neutrophils are present in conditions that affect the intestinal wall 
C)  Red and white blood cells are present if the cause is malabsorption 
D)  Neutrophils are present if the condition is of nonbacterial etiology 
A)  Neutrophils are present in conditions caused by toxin-producing bacteria 
B)  Neutrophils are present in conditions that affect the intestinal wall 
C)  Red and white blood cells are present if the cause is malabsorption 
D)  Neutrophils are present if the condition is of nonbacterial etiology

Question 13

Which of the following pairings of stool appearance and cause does not match?

Accepted Answer

A)  Black, tarry: blood 
B)  Yellow-green: barium sulfate 
C)  Pale, frothy: steatorrhea 
D)  Yellow-gray: bile duct obstruction 
A)  Black, tarry: blood 
B)  Yellow-green: barium sulfate 
C)  Pale, frothy: steatorrhea 
D)  Yellow-gray: bile duct obstruction

Question 14

Microbial infections produce osmotic diarrhea.

Accepted Answer

A) True 
 B)False

Question 15

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility:
-Shigella dysentery

Accepted Answer

A)  Osmotic diarrhea 
B)  Secretory diarrhea 
C)  Altered motility 
A)  Osmotic diarrhea 
B)  Secretory diarrhea 
C)  Altered motility

Question 16

Microscopic screening of a pale,frothy stool from a patient with prolonged diarrhea is performed for fecal neutrophils,fats,and meat fibers.The fecal neutrophil examination result is negative,increased large and small orange droplets are seen in the fat stains,and 10 unstriated muscle fibers are observed.
-Based on the information provided,what type of diarrhea is suggested by these results?

Accepted Answer

A)  Secretory 
B)  Rapid gastric emptying 
C)  Osmotic 
D)  Altered motility 
A)  Secretory 
B)  Rapid gastric emptying 
C)  Osmotic 
D)  Altered motility

Question 17

Increased neutrophils in a stool sample may indicate that the patient has which of the following?

Accepted Answer

A)  Staphylococcal food poisoning 
B)  Pancreatic insufficiency 
C)  Lower GI bleeding 
D)  Salmonella infection 
A)  Staphylococcal food poisoning 
B)  Pancreatic insufficiency 
C)  Lower GI bleeding 
D)  Salmonella infection

Question 18

The term occult blood in fecal analysis can indicate which of the following?

Accepted Answer

A)  Blood that is produced in the lower GI tract 
B)  Blood that is produced in the upper GI tract 
C)  Blood that is not visibly apparent in the stool specimen 
D)  Blood that produces a black, tarry stool 
A)  Blood that is produced in the lower GI tract 
B)  Blood that is produced in the upper GI tract 
C)  Blood that is not visibly apparent in the stool specimen 
D)  Blood that produces a black, tarry stool

Question 19

State whether or not the following scenarios should be of concern to a laboratory supervisor and why:
-Quantitative fecal fat testing performed on a patient maintained on a diet of 100 g of fat per day is 5 g per day.The coefficient of fat retention is reported as normal.

Accepted Answer

A)  Concerned; the normal coefficient of fat is 100% 
B)  Not concerned; 95% retention is normal 
A)  Concerned; the normal coefficient of fat is 100% 
B)  Not concerned; 95% retention is normal

Question 20

A bloody stool from a neonate should be emulsified in water,centrifuged,and the supernatant tested with:

Accepted Answer

A)  Clinitest 
B)  Guaiac reagent 
C)  Gelatin 
D)  NaOH 
A)  Clinitest 
B)  Guaiac reagent 
C)  Gelatin 
D)  NaOH

The Apt test should not be performed on a black,tarry stool.

Before and during collection of a sample for quantitative fecal fats,a patient should:

Steatorrhea is seen in association with decreased elastase 1 in the feces.

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility: -Malabsorption

The neutral fat and split fat stains are confirmatory tests for steatorrhea.

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility: -Irritable bowel syndrome

A patient whose stool exhibits increased fats,undigested muscle fibers,and the inability to digest gelatin may have:

A bloody stool produced by a newborn should:

Wet preparations for the detection of fecal neutrophils are stained with:

Staphylococcal food poisoning produces secretory diarrhea and increased fecal neutrophils.

A positive lactoferrin latex agglutination test can indicate which of the following?

Microscopic examination of stools for fecal cells provides preliminary information as to the cause of diarrhea because:

Which of the following pairings of stool appearance and cause does not match?

Microbial infections produce osmotic diarrhea.

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility: -Shigella dysentery

Increased neutrophils in a stool sample may indicate that the patient has which of the following?

The term occult blood in fecal analysis can indicate which of the following?

State whether or not the following scenarios should be of concern to a laboratory supervisor and why: -Quantitative fecal fat testing performed on a patient maintained on a diet of 100 g of fat per day is 5 g per day.The coefficient of fat retention is reported as normal.

A bloody stool from a neonate should be emulsified in water,centrifuged,and the supernatant tested with:

Safety and Quality Assessment

Introduction to Urinalysis

Renal Function

Physical Examination of Urine

Chemical Examination of Urine

Microscopic Examination of Urine

Renal Disease

Urine Screening for Metabolic Disorders

Cerebrospinal Fluid

Semen

Synovial Fluid

Serous Fluid

Amniotic Fluid

Vaginal Secretions

Filters

Exam 14: Fecal Analysis

The Apt test should not be performed on a black,tarry stool.

Before and during collection of a sample for quantitative fecal fats,a patient should:

Steatorrhea is seen in association with decreased elastase 1 in the feces.

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility: -Malabsorption

The neutral fat and split fat stains are confirmatory tests for steatorrhea.

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility: -Irritable bowel syndrome

A patient whose stool exhibits increased fats,undigested muscle fibers,and the inability to digest gelatin may have:

A bloody stool produced by a newborn should:

Wet preparations for the detection of fecal neutrophils are stained with:

Staphylococcal food poisoning produces secretory diarrhea and increased fecal neutrophils.

A positive lactoferrin latex agglutination test can indicate which of the following?

Microscopic examination of stools for fecal cells provides preliminary information as to the cause of diarrhea because:

Which of the following pairings of stool appearance and cause does not match?

Microbial infections produce osmotic diarrhea.

State whether each of the following scenarios relates to osmotic diarrhea,secretory diarrhea,or altered motility: -Shigella dysentery

Increased neutrophils in a stool sample may indicate that the patient has which of the following?

The term occult blood in fecal analysis can indicate which of the following?

State whether or not the following scenarios should be of concern to a laboratory supervisor and why: -Quantitative fecal fat testing performed on a patient maintained on a diet of 100 g of fat per day is 5 g per day.The coefficient of fat retention is reported as normal.

A bloody stool from a neonate should be emulsified in water,centrifuged,and the supernatant tested with:

Safety and Quality Assessment

Introduction to Urinalysis

Renal Function

Physical Examination of Urine

Chemical Examination of Urine

Microscopic Examination of Urine

Renal Disease

Urine Screening for Metabolic Disorders

Cerebrospinal Fluid

Semen

Synovial Fluid

Serous Fluid

Amniotic Fluid

Vaginal Secretions

Filters