Question 1

Helicobacter pylori is associated with:

Accepted Answer

Helicobacter pylori is associated as a cause of approximately 95% of duodenal ulcers and 75% of gastric ulcers.

Question 2

Which one of these ulcers has the lowest incidence of malignancy?

Accepted Answer

Duodenal ulcers are at exceedingly low risk for any malignancy, unlike the other ulcers. Gastric ulcers especially show malignancy.

Question 3

In which disorder is malabsorption due to diminished or absent digestive enzymes?

Accepted Answer

The causes of malabsorption include the absence of digestive enzymes (as occurs in chronic pancreatitis) or injured or absent small bowel mucosa (as occurs in Crohn's disease, various gastric surgeries, and ischemia resulting in bowel resection.)

Question 4

Serum alkaline phosphatase may be elevated in the diseases of which organ?

Accepted Answer

Alkaline phosphatase originates from bone, liver, intestine, and placentA- Elevated levels of alkaline phosphatase occur in persons with parenchymal liver diseases (slight to moderate increases in many of these cases).

Question 5

In obstructive liver disease, which one of the following tests of liver function likely remains normal?

Accepted Answer

In obstructive liver disease, unlike parenchymal liver disease, the albumin level remains normal.

Question 6

Which one of the hepatitis viruses is a DNA virus?

Accepted Answer

HBV is a DNA belonging to the Hepadnaviridae. It possesses partially single-stranded and partially double-stranded DNA and a double-shelled virion.

Question 7

Which of these liver diseases results from a copper disorder?

Accepted Answer

Wilson's disease is an inherited copper metabolism disorder that leads to accumulation of copper in the liver, brain, and other organs.

Question 8

Which of the following conditions is the most common cause of portal hypertension?

Accepted Answer

The most common cause of portal hypertension is cirrhosis. About 60% of persons with cirrhosis have portal hypertension.

Question 9

Which is the most common precipitating event of hepatic encephalopathy?

Accepted Answer

Gastrointestinal bleeding is the single most important precipitating event of hepatic encephalopathy. It leads to an increase in ammonia and other nitrogenous substances that are absorbed.

Question 10

Which hypersensitivity reaction is associated with Goodpasture's syndrome?

Accepted Answer

The hypersensitivity reaction in Goodpasture's syndrome is type II in which antibody mediates cell lysis.

Question 11

Which of the following disorders presents mainly as a localized new mass or group of superficial lymph nodes?

Accepted Answer

Hodgkin's disease often presents with superficial nodes found as a new mass.

Question 12

Which one of the following types of bites is more likely to become infected?

Accepted Answer

Of the common animal bites, human bites more often become infected than other animal bites.

Quiz 1: Physician Assistant