Cardiovascular Drugs: Positive Iontropic Drugs

Question 1

What do Positive Iontropic Drugs do?

Answer 1

Increase the strength of contraction of the heart​

Question 2

When are Positive Iontropic Drugs used?

Answer 2

Used when heart muscle is too weak to pump

Question 3

What Positive Iontropic Drug is this?

1. Newest inotropic drug that is also a vasodilator​
2. Increases intracellular calcium sensitivity​
3. Used to treat CHF due to dilated cardiomyopathy or valve insufficiency​
4. Can be safely used in conjunction with other cardiac drugs​

Answer 3

Pimobendan

Question 4

What Positive Iontropic Drug is this?

1. Older inotropic drug​
2. makes more calcium available inside cardiac muscle cells to improve contraction​
3. enhances the parasympathetic nervous systemeffect on the heart​
4. narrow therapeutic range​

Answer 4

Digoxin

Question 5

What Positive Iontropic Drug has these adverse effects?

1. Anorexia
2. Vomiting
3. Diarrhea
4. Arrhythmia

Answer 5

Digoxin