verified
What class of antiarrhythmic is verapamil in according to the Vaughn Williams
classification system?
IV
A patient is beginning digoxin 0.125 mg daily. The patient has mild renal
insufficiency. After a few weeks, the patient develops an infection with nausea
and vomiting. She is weak, dehydrated and is bradycardic. The patient is admitted
to the hospital. Which of the following statements are correct?
- Digoxin is mainly eliminated by the kidney and decreased renal function can lead to
supratherapeutic levels.
- An elevated digoxin level can worsen nausea and vomiting.
- Mental confusion and bradycardia can be caused by an elevated digoxin level
Which Vaughan Williams classification represents agents that bind to Na+
channels for a prolonged period of time (long-acting)?
1c
A patient who works in the fields of a farm is seen by his primary care physician
for a blue-grey skin discoloration of the face and forearms. The patient states that
he normally wears a hat, a short-sleeved shirt, and pants when working. Which
antiarrhythmic is the patient likely receiving?
Amiodarone
A patient presents to the emergency department complaining of fatigue and
lightheadedness. He has a history of hypertension, heart failure, coronary artery
disease and atrial flutter. His home medications include aspirin, metoprolol,
benazepril, digoxin, furosemide, and amlodipine. The patient is found to be in
third degree AV block. Which of the following drugs most likely contributed to
this bradyarrhythmia?
Digoxin
What class of antiarrhythmic is amiodarone in according to the Vaughn Williams
classification system?
class III
The half-life of amiodarone is:
60 days
Jack is a 77 year-old male with heart failure who is receiving a new prescription
for amiodarone. The pharmacist will counsel the patient on risks to these organs
with amiodarone therapy:
Thyroid, liver, and lungs
A patient was using furosemide 40 mg twice daily (at 8 am and 12 noon) for heart
failure. The doctor forgot to call in a prescription for potassium when he called
the pharmacy to order the furosemide. The patient's other medications include
carvedilol, digoxin and aspirin. The patient ran out of the potassium. The patient
is at increased risk for:
Digoxin toxicity
Sotalol is classified in which Vaughan Williams class?