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24 Cards in this Set

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These are drugs that prevent Ca+ from entering the cell. They have their greatest effects on heart & blood vessels
Ca+ Blockers
In ******muscle, CCB act selectively on peripheral arterioles & arteries & arterioles of the heart. They have no significant effects on veins.
Vascular Smooth Muscle
In this part of the heart, where CCBs are introduced, Ca+channels in the atrial & ventricular muscles are blocked, whereas contractile force is diminished.
In the part of the heart CCB's close Ca+ channels, whereby pacemaker activity declines. CBC's are used to reduce HR.
SA Node
In this part of the heart, CCB's are used to decrease velocity of conduction.
AV Node
This CCB falls under the classification of Phenyalkylamine. Blockade reduces atrial pressure, increases coronary pefusion, reduces HR at SA node, decreases AV nodal conduction & force of conduction at myocardium.
For this condition, verapamil is used for the "vasospastic" and **** effort.
Angina Pectoris
For this condition, verapamil is a first-line agent for chronic hypertension. Drug lowers BP by promoting dialation of arterioles.
Essential Hypertension
For this condition, verapamil adimin IV is used to slow ventricular rate for atrila flutter, atrial fib & paroxysmal supraventricluar tachy. Suppresses impulse conduction thru AV node.
Cardiac Dysrhythmia
Verpamil may be admin. IV or orally, but undergoes extensive first pass effect. Begins in 30min & peaks in 5hrs. This is an ex. of what
Two drugs which have an adverse effect on verapamil, due to the fact that both drugs will enhance slowing of the heart. If combined patients should be monitored
Dioxin/Beta Blockers
This drug falls under the family of dihydropyridine; but has very little blockade of Ca+ in the heart. Can't treat dysrhthmia & more likely to cause refelx tachy.
This drug is well absorbed orally; but undergoes extensive first-pass-effect of about 50%. Begins in 20min & peaks in 6hrs.
(Repeat Question)
For this condition, nifedipine is used in combo w/a beta blocker to prevent reflex stim. of heart, which can intensify this condtion.
Angian Pectoris
Nifedipine is used to treat this condition; but only is the sustained-release formulation. Used to be used in emergencies.
Adverse effects of this drug includes "constipation", along w/flushing, dizziness, headache, peripheral edema, & gingival hyperplasia.
Drug that has all of the adverse effects of Verapamil, w/out the constipation. It can cause reflex tachycardia.
This form of Nifedipine has been associated w/ increased mortality in patients w/MI & unstable angina.
Rapid-Acting Nifedipine
Like verapamil, this drug blocks Ca+ channels in the heart & vessels. Lowers BP via arterial dialation. Used for angina, essential HT, dysrrhythmias.
This drug causes less constipation; but can exacerbate dysfunct. in pt w/bradycardia, sick sinus syndrome, HF or 2nd & 3rd degree AV Block.
This drug can also intensify beta blockers.
For this type of data, nurse must determine BP & pulse, along w/labs on liver & kidney funtc. For anginal pt, determine freq. of attacks.
Baseline Data
For this part of the nursing process, patient should be told to inform MD if swelling of ankles or feet occurs.
Patient Education
Intervention where the sustained release formulation is to be administered whole, w/out being chewed or crushed. For IV monitor for ECG for AV Block, sudden HR reduction & prolonged PR or QT interval.