Digoxin Toxicity Flashcards
1
Q
Digoxin - Classification
A
Cardiac Glycoside aka
- Antidysrhythmic
- Inotrope
2
Q
Digoxin - Uses
A
Heart failure
Atrial Fib & Flutter
3
Q
Digoxin - ADE
A
Bradycardia
N/V
Visual disturbances: diplopia, “halos”
4
Q
Digoxin - what to monitor…
A
HR
Serum K & Ca level
Digoxin Level –> Therapeutic is 0.5 to 2.0
5
Q
Digoxin - HOLD when…
A
Apical HR is less than 60
24 - 48 hours prior to cardioversion
Excreted almost entirely unchanged by the kidney
6
Q
Digoxin - Doses
A
Loading dose: 0.75mg divided into 3 doses over a 24 hour period.
Maintenance: PO / IV –> 0.125 - 0.5 mg
If IV, give slowly over 5 minutes, dilute with 4 fold or > D5W or NS
7
Q
WTF IS DIGOXIN ?
A
- Occasionally used in the treatment of various heart conditions, namely Atrial Fibrillation, Atrial Flutter, and sometimes Heart Failure.
- Beta Blockers and/or Calcium Channel Blockers are a better first choice.
- Slows down the conductions in the AV node –> which reduces the ventricular rate. The arrhythmia itself is not affected, but the pumping function of the heart improves, which improves filling.
