10 Questions
Digoxin is a type of ______ glycoside.
cardiac
The mechanism of action of Digoxin involves inhibiting the activity of the myocardial ______ ATPase enzyme.
Na+/K+
Digoxin increases the ______ fraction, which is the volume ejected with each contraction of the heart.
LV's ejection
Digoxin treats atrial fibrillation (AFib) by increasing the ______ node's effective refractory period.
AV
Digoxin is a ______ that increases myocardial efficiency and improves its contractions, leading to improved blood flow.
cardiotonic
Digoxin is a type of cardiac ______ that increases myocardial efficiency and improves its contractions, leading to improved blood flow.
glycoside
Treats HF by increasing the ______ 's ejection fraction, which is the volume ejected with each contraction.
LV's
Digoxin treats HF by increasing the force and velocity of ______ contractions, and decreasing the conduction rate.
myocardial
Digoxin does this by inhibiting the activity of the ______ Na+/K+ ATPase enzyme, which controls the movement of ions into the heart.
myocardial
Treats AFib by decreasing the ______ rate and increasing the AV node's effective refractory period.
conduction
Study Notes
Digoxin
- A cardiac glycoside, antiarrhythmic, and cardiotonic medication
- Increases myocardial efficiency and improves contractions, resulting in enhanced blood flow
Mechanism of Action (MOA)
- Inhibits myocardial Na+/K+ ATPase enzyme (sodium pump), controlling ion movement in the heart
- Increases left ventricle's ejection fraction, strengthening heart contractions
- Boosts the force and velocity of myocardial contractions
- Decreases the conduction rate
Treatment of Atrial Fibrillation (AFib)
- Decreases conduction rate
- Increases the AV node's effective refractory period, preventing rapid cell responses to new stimuli
Digoxin
- A cardiac glycoside, antiarrhythmic, and cardiotonic medication
- Increases myocardial efficiency and improves contractions, resulting in enhanced blood flow
Mechanism of Action (MOA)
- Inhibits myocardial Na+/K+ ATPase enzyme (sodium pump), controlling ion movement in the heart
- Increases left ventricle's ejection fraction, strengthening heart contractions
- Boosts the force and velocity of myocardial contractions
- Decreases the conduction rate
Treatment of Atrial Fibrillation (AFib)
- Decreases conduction rate
- Increases the AV node's effective refractory period, preventing rapid cell responses to new stimuli
Learn about the mechanism of action of digoxin, a cardiac glycoside and antiarrhythmic, used to treat heart failure. Understand its effects on myocardial contractions and sodium pump inhibition.
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