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

Author Question: Which drug class, with a negative inotropic effect, is prescribed for the treatment of heart ... (Read 56 times)

tth

  • Hero Member
  • *****
  • Posts: 579
Which drug class, with a negative inotropic effect, is prescribed for the treatment of heart failure?
 
  1. Diuretics
  2. Cardiac glycosides
  3. Beta-adrenergic blockers
  4. Phosphodiesterase inhibitors

Question 2

The nurse is instructing a group of students about the ability to increase the strength of a cardiac contraction. Which medical term is appropriate for the nurse to use when referring to this topic?
 
  1. Positive inotropic effect
  2. Negative chronotropiceffect
  3. Preload
  4. Afterload



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kristenb95

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

3

Rationale 1:Diuretics increase urine flow and lower blood volume. They do not have inotropic effects on the heart.
Rationale 2: Cardiac glycosides have a positive inotropic effect.
Rationale 3: Beta-adrenergic blockers have a negative inotropic effect.
Rationale 4:Phosphodiesterase inhibitors have a positive inotropic effect.

Global Rationale: Beta-adrenergic blockers have a negative inotropic effect. Cardiac glycosides and phosphodiesterase inhibitors have a positive inotropic effect. Diuretics increase urine flow and lower blood volume.

Answer to Question 2

1

Rationale 1: The ability to increase the strength of contraction is called a positive inotropic effect.
Rationale 2: Negative chronotropiceffect would be a reduction of the rate or number of the contractions.
Rationale 3: Preload is the degree to which the heart fibers are stretched just prior to contraction.
Rationale 4: Afterload is the pressure in the aorta that must be overcome for blood to be ejected from the left side of the heart.

Global Rationale: The ability to increase the strength of contraction is called a positive inotropic effect. Negative chronotropiceffect would be a reduction of the rate or number of contractions. Preload is the degree to which the heart fibers are stretched just prior to contraction. Afterload is the pressure in the aorta that must be overcome for blood to be ejected from the left side of the heart.



tth

  • Hero Member
  • *****
  • Posts: 579
Both answers were spot on, thank you once again



kristenb95

  • Sr. Member
  • ****
  • Posts: 318

 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

For a complete list of videos, visit our video library