This topic contains a solution. Click here to go to the answer

Author Question: A patient is receiving vasodilator therapy for hypertension. To counter the increase in blood volume ... (Read 101 times)

CBme

  • Hero Member
  • *****
  • Posts: 548
A patient is receiving vasodilator therapy for hypertension. To counter the increase in blood volume caused by prolonged vasodilator therapy, the patient should be concurrently receiving what drug?
 
  a. Intravenous normal saline to increase the fluid volume
  b. A diuretic to prevent sodium and water retention
  c. A beta-adrenergic blocker (if the patient has a history of heart failure)
  d. Nesiritide (Natrecor) to increase preload

Question 2

Which statement is correct regarding the impact of prolonged CNS drug exposure on the central nervous system?
 
  a. Side and adverse effects generally increase over time.
  b. When tolerance develops, drug dosage should be decreased and eventually tapered off.
  c. These drugs usually act immediately to produce profound structural changes in the nervous system.
  d. These drugs may take some time to exert the changes that produce the desired effects.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cpetit11

  • Sr. Member
  • ****
  • Posts: 321
Answer to Question 1

B
Vasodilators cause an increase in blood volume secondary to prolonged reduction of blood pres-sure. The increase in volume represents an attempt by the body to restore blood pressure to pre-treatment levels. A diuretic would help reduce fluid retention and, consequently, the blood pres-sure would not increase.
Intravenous normal saline would further increase the amount of fluid in the body and therefore is contraindicated.
A beta blocker also would contribute to an increase in volume; it would be indicated only if ref-lex tachycardia were an issue.
Nesiritide reduces preload; it is a vasodilator used in severe heart failure.

Answer to Question 2

d





 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

For a complete list of videos, visit our video library