Disease of small bowel - Mengshol

Question 1

Secretory diarrhea is defined as an sm gap (greater than or less than) 50 mOsm?

How is this calculated?

Answer 1

Less than 50 mOsm is considered secretory diarrhea.

Stool osm gap=290-2(stool Na+stool K

Question 2

Osmotic diarrhea is defined as a stool osmol gap greater than 50 mOsm. What are some causes?

Answer 2

Sorbitol, lactose, fructose, magnesium-containing laxatives

Question 3

Name four possible causes of steatorrhea that is due to malabsorption?

Answer 3

Celiac
Whipple
Bacterial overgrowth
Short gut (due to surgical resection)

Question 4

Name two possible causes of steatorrhea that is due to maldigestion?

Answer 4

Biliary obstruction

Pancreatic insufficiency

Question 5

Watery diarrhea for which a cause cannot be found? (Diagnosis of exclusion)

Answer 5

IBS

Question 6

Name the vitamin deficiency.

Night Blindness
Xerophthalmia

Answer 6

Vitamin A (rare)

Question 7

Name the vitamin deficiency.

Osteomalacia

Answer 7

Vitamin D

Question 8

Name the vitamin deficiency.

Hemolytic anemia

Answer 8

Vitamin E

Question 9

Name the vitamin deficiency.

Clotting dysfunction

Answer 9

Vitamin K