How do histamine (H2) blockers help heal gastric ulcers? a. ...

[imanialler]

How do histamine (H2) blockers help heal gastric ulcers?
 
  a. They promote cell division.
  b. They neutralize acids that are present in the stomach.
  c. They decrease the amount of acid secreted by stomach cells.
  d. They increase the rate that stomach contents move into the intestinal tract.

Question 2

Which precaution is most important for the nurse to teach an older patient who is prescribed atazanavir (Reyataz)?
 
  a. Be sure to take this drug at least 1 hour before or 4 hours after taking an anta-cid.
  b. Weigh yourself daily and notify your prescriber if you gain more than 2 pounds in 1 week.
  c. Check your pulse for a full minute daily and notify your prescriber if it becomes irregular or slow.
  d. Check your calves daily for swelling or redness. If these symptoms appear, go to the emergency department immediately.

[wergv]

Answer to Question 1

C
Ulcers do not heal in an acidic environment. Histamine increases acid production by stimulating the stomach's parietal cells to secrete hydrochloric acid. Histamine (H2) blockers reduce the amount of histamine that is present, which then results in less stimulation of the parietal cells.

Answer to Question 2

C
Atazanavir can impair electrical conduction in the heart and lead to heart block, especially in older adults or people who have an abnormally slow heart rate.

[imanialler]

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