GIT and Pancreatic Disorders

Question 1

The newborn screening for cystic fibrosis determines which of the following substances?
a. Trypsinogen
b. Gastrin
c. Hemoglobin F
d. Sweat chloride

Answer 1

a. Trypsinogen

Question 2

Which of these is a valuable differential diagnostic test for malabsorption especially in adults?
a. Quantitative specific fecal trypsin
b. Schilling test
c. D-xylose absorption test
d. Starch tolerance test

Answer 2

c. D-xylose absorption test

Question 3

What is the simplest and most cost-effective method to screen for steatorrhea?
a. Fecal fat testing
b. Apt test
c. Fecal elastase test
d. Fecal DNA test

Answer 3

a. Fecal fat testing

Question 4

A 45-year old female with a long history of gallbladder
disease developed sudden onset of severe mid-abdominal pain. Abdominal CT scan shows enlarged, edematous and inflamed pancreas with surrounding fluid collection. Which of the following laboratory tests is most useful for diagnosis?
a. Serum gastrin
b. Serum amylase
c. Serum creatinine
d. Hematocrit level

Answer 4

b. Serum amylase

Question 5

Bright red blood and mucus in feces are most often seen with which of these disease conditions?
a. Villous adenoma
b. Spastic constipation
c. Mucous colitis
d. Bacillary dysentery

Answer 5

d. Bacillary dysentery

Question 6

Which of the following tests is most useful in the diagnosis of carcinoid syndrome?
a. 5-hydroxytryptophan
b. Urine serotonin
c. Serum 5-HIAA
d. Urine 5-HIAA

Answer 6

d. Urine 5-HIAA

Question 7

False negative fecal occult blood test can be seen in which of the following circumstances?
a. Red meat diet
b. Iron supplements
c. Colchicine intake
d. Large amounts of vitamin C

Answer 7

d. Large amounts of vitamin C

Question 8

Which of the following tests is used to confirm and evaluate the extent of tissue iron load in secondary
hemochromatosis?
a. Liver tissue biopsy
b. Serum Iron
c. Transferrin saturation
d. Genetic testing

Answer 8

c. Transferrin saturation

Question 9

What is the indication of performing a secretin stimulation test?
a. Low gastrin EIA levels
b. Elevated gastrin EIA levels
c. Equivocal gastrin EIA levels
d. Normal gastrin EIA levels

Answer 9

c. Equivocal gastrin EIA levels

Question 10

A 40-year old male presents with episodic abdominal
bloating, flatulence, and explosive diarrhea which appear
to be related to the milk shakes that he loves to consume. No increase in stool fat, no occult blood, ova, or parasites are seen in his stool. When he does not consume milk
shakes or ice cream sodas, he is not symptomatic. Which of the following conditions is most likely present in this
patient?
a. Peptic ulcer disease
b. Cystic fibrosis
c. Disaccharidase deficiency
d. Celiac disease

Answer 10

c. Disaccharidase deficiency