Week 1 Quiz Flashcards
(29 cards)
Amiodarone works by lengthening the effective refractory period and which of the following other actions?
Select one:
a. By stimulating sodium channels
b. By stimulating slow calcium channels
c . By blocking slow calcium channels
d. By blocking sodium channels
d. By blocking sodium channels
A thiazide is which of the following:
Select one:
a. A diuretic preferred in hypertension
b. a sodium channel blocker preferred in life-threatening arrhythmias
c. a sodium channel blocker preferred in ventricular arrhythmias
d. a diuretic preferred in heart failure
a. A diuretic preferred in hypertension
The 4 cardiac cell properties are:
Select one:
a. Contractility, automaticity, excitability, inhibition
b. Diuresis, automaticity, excitability, conductivity
c. Antagonism, automaticity, polarity, conductivity
d. Contractility, automaticity, excitability, conductivity
d. Contractility, automaticity, excitability, conductivity
Asthma, severe peripheral vascular disease, and heart rate less than 50 beats per minute would be contraindications for which drug
class:
Select one:
a. Statins
b. Beta-blockers
c. ACE-inhibitors
d. Antiplatelets
b. Beta-blockers
A reduction in heart rate, conduction, automaticity, and contractility is caused by:
Select one:
a. Beta-1 receptor stimulation
b. Alpha-1 receptor stimulation
c. Beta-1 receptor blockade
d. Alpha-1 receptor blockade
c. Beta-1 receptor blockade
Which of the following about Amiodarone is True?
Select one:
a. Is not used for atrial arrhythmias
b. Acts on Beta-receptors in the heart
c. Prolongs the effective refractory period in all cardiac tissues including accessory pathways
d. Usually given via the intramuscular route
c. Prolongs the effective refractory period in all cardiac tissues including accessory pathways
Which drug acts on its receptor to inhibit calcium currents, especially in the AV node, to interrupt re-entry rhythms:
Select one:
a. Metoprolol
b. Adenosine
c. Amlodipine
d . Lidocaine
b. Adenosine
Bronchoconstriction in the lungs and vasoconstriction of arterioles in skeletal muscles is caused by:
Select one:
a. Beta-2 receptor stimulation
b. 1 Type 1-B Sodium channel stimulation
c. Type 1-B Sodium channel blockade
d. Beta-2 receptor blockade
d. Beta-2 receptor blockade
Which of the following medications acts on funny currents (If) to decrease automaticity:
Select one:
a. Nifedipine
b. Lidocaine
c. Ivabradine
d. Quinidine
c. Ivabradine
Diuretics in hypertension must:
Select one:
a. Provide enough natriuresis (Na+ loss) to shrink fluid volume to some extent
b. Provide increased kidney perfusion for most of the day
c. Shrink fluid volume for a short period each day
d. Promote potassium excretion to produce enough of a diuretic effect
a. Provide enough natriuresis (Na+ loss) to shrink fluid volume to some extent
Sodium channel blockers belong to which class under Vaughan Williams Classification system:
Select one:
a. Class I
b. Class III
c. Class II
d. Class IV
a. Class I
Beta1 receptors are primarily found in the kidneys, parts of the eye, and which of the following?
Select one:
a. Heart
b. Lungs
c. Insulin secreting tissue of the pancreas
d. GI tract
a. Heart
An adverse effect of all Class III Antiarrhythmics is which of the following rhythms?
Select one:
a. Ventricular Fibrillation
b. Atrial Fibrillation
c. Sinus Rhythm
d. Torsades de Pointes
d. Torsades de Pointes
Class III Antiarrhythmics:
Select one:
a. Shorten the duration of the action potential
b. Do not change the action potential
c. Heighten the action potential
d. Widen the duration of the action potential
d. Widen the duration of the action potential
Class I Sodium Channel blocker medications:
Select one:
a. Effect the myocyte action potential
b. Effect the pacemaker action potential
c. Effect both the myocyte action potential and the pacemaker action potential
d. Effect neither the myocyte action potential nor the pacemaker action potential
c. Effect both the myocyte action potential and the pacemaker action potential
Class Il Antiarrhythmics - Beta-blockers impact heart rate by acting on (Select one):
Select one:
a. Beta-blockers do not impact heart rate
b. Pacemaker cells
c. Neither myocytes, nor pacemaker cells
d. Myocytes
b. Pacemaker cells
Beta2 receptors are primarily found in the vascular smooth muscle, GI tract, insulin secreting tissue of the pancreas and which of the
following?
Select one:
- a . Brain
- b. Lungs
- c. Eyes
- d. Heart
- b. Lungs
Which of the following Sodium Channel Blockers is useful in managing serious ventricular arrhythmias in patients with ischemic
myocardium:
Select one:
a. Lidocaine
b. Procainamide
c. Disopyramide
d. Quinidine
a. Lidocaine
The Vaughan Williams classification:
Select one:
a. Is a classification of the mechanism of an arrhythmia
b. Is a means for classifying the different types of arrhythmias
c. Is a classification for all types of cardiac medications
d. Classifies by drug actions, not by drug class
d. Classifies by drug actions, not by drug class
Which of the following drug classes is indicated for the treatment of acute MI, hypertension, and heart failure:
Select one:
a. sodium channel blockers
b. HMG-COA reductase inhibitors (Statins)
c. beta blockers
d. antiplatelets
c. beta blockers
Which of the following beta blockers has both Vaughan Williams Class Il and class Ill properties?
Select one:
a. Sotalol
b. Metoprolol
c. Carvedilol
d. Bisoprolol
a. Sotalol
Class IB Sodium Channel blocker medication, Lidocaine:
Select one:
a. Acts on ischemic myocardium, used for suppression of serious atrial arrhythmias
b. Acts on ischemic myocardium, used for suppression of serious ventricular arrhythmias
c. Acts on ischemic myocardium, used for suppression of supraventricular arrhythmias
d. Acts on non-ischemic myocardium, used for suppression of atrial and ventricular arrhythmias
b. Acts on ischemic myocardium, used for suppression of serious ventricular arrhythmias
When exercise stress testing a patient who is adequately beta-blocked, you would expect the following:
Select one:
a. The patient will be able to exercise as usual with no restrictions.
b. The patient will develop asthma.
c. The patient’s blood sugar will become elevated.
d. The patient will not be able to reach their maximum heart rate
d. The patient will not be able to reach their maximum heart rate
Which of the following drug classes primarily block beta-1 receptors:
Select one:
a. dobutamine
b. cardio-selective beta blockers
c. epinephrine
d. non-selective beta blockers
b. cardio-selective beta blockers
