Cardiovascular drugs - 1
Terms in this set (37)
HR x SV
Cardiac output =
An increase in ___ or ___ wil increase stroke volume.
An increase in ___ will decrease stroke volume.
Mitral valve regurgitation is caused by ___.
Systemic hypertension is caused by ___.
Hypertrophic cardiomyopathy is caused by ___.
___ are caused by disturbances in the rate or rhythm of the heartbeat.
Congestive heart failure
___ occurs when compensatory changes to increase cardiac output damage the myocardium, resulting in the inability to eject enough blood to maintain tissue perfusion
T/F: Effective management of CV disease involves continuous monitoring and adjustment of medications.
T/F The goal of therapy for heart disease is to slow disease progression and manage the symptoms.
T/F: Treating CV disease usually involves use of multiple drugs. Each of these drugs has the potential for adverse effects and drug ineractions.
T/F: CV disease affects multiple body systems.
T/F: It is safe to abruptly discontinue cardiac drugs.
T/F: Cardiac drugs usually have few side effects and do not cause drug interactions.
T/F: Effective management of CV disease involves ongoing monitoring and periodic adjustment of meds.
T/F: CV drug doses do not usually need to be adjusted over time.
T/F: CPR drugs should not be used until after chest compressions and respirations are initiated.
Drugs that reduce arterial or venous vasomotor tone; reduce preload and/or afterload.
Drugs used to reduce preload; manage fluid volume. Act on the kidneys.
Drugs that alter the strength of heart contractions
Drugs that maintain normal heart rhythm
Drugs that alter heart rate
Cardiac muscle has ___, meaning that it beats on its own without nervous stimulation.
Cardiac muscle has ___, meaning that it beats at a regular pace.
Cardiac muscle acts as a ___, meaning that the impulse has a domino effect through the heart that causes it to beat in a synchronized fashion.
___ records the sum of electrical activity from depolarizing and repolarizing muscle cells.
A normal sinus rhythm with a faster pace
A normal sinus rhythm with a slowed pace
___ antiarrhythmics are sodium channel blockers that inhibit depolarization
___ antiarrhythmics are beta adrenergic blockers that slow the heart rate.
___ antiarrhythmics are potassium channel blockers that delay repolarization.
___ antiarrhythmics are calcium channel blockers that slow conduction. Also act as negative inotropes.
Premature ventricular contraction (PVC)
Depolarization of the ventricles out of the normal sequence that causes them to contract prematurely
A long series of PVCs that causes a severe conduction disturbance, resulting in loss of electrical coordination that can lead to ventricular fibrillation
The heart muscle is unable to coordinate beats and quivers rather than beating.
Conduction of the AV node is delayed and dies out before it can reach the ventricles.
The ventricular wall of the heart becomes thickened and stiff and cannot contract efficiently