A patient is placed on drug therapy with omeprazole (Prilosec). ...

[faduma]

A patient is placed on drug therapy with omeprazole (Prilosec). Which statement most accurately describes the therapeutic effect of the drug?
 
  a. It inhibits the conversion of pepsinogen to pepsin.
  b. It inhibits the action of histamine at the histamine2 (H2) receptors.
  c. It affects the proton pump system to block hydrogen secretion from parietal cells.
  d. It increases the strength of esophageal peristalsis and lowers esophageal sphincter pressure.

Question 2

Which of the following is a disadvantage of using stimulant laxatives for a prolonged period of time?
 
  a. They are all enteric-coated and lead to bowel erosion.
  b. They lead to hyperkalemia.
  c. They can lead to ulcerative colitis.
  d. They may lead to dependence.

[dawsa925]

Answer to Question 1

ANS: C
Omeprazole is a proton pump inhibitor, and suppresses gastric acid secretion by irreversibly binding with the proton pump system that controls hydrogen secretion from the parietal cell into the secretory canals.

Answer to Question 2

ANS: D
Excessive or prolonged use of stimulant laxatives may lead to dependence.

[faduma]

Excellent

[ktidd]

Gracias!