Calcium channel blockers (CCBs) are like _____ for the heart.


CCBs have negative _____, ______, and ______ effects.

Inotropic, chronotropic, dromotropic,


Affects force of contraction


Affects heart rate


Affects conduction speed in the AV node

What three things do CCBs treat?

-- Antihypertensives
-- Anti-anginals
-- Anti-atrial arrhythmias

What are two major side effects of CCBs?

-- Hypotension
-- Headaches

Which vital sign is taken before administration of a CCB? When should you hold the medication?

Blood pressure; hold if SBP is < 100 mmHg

Suffix for CCBs


Which two CCBs do not follow the suffix rule?

Verapamil and cardiazem (diltiazem)

If a question mentions the "QRS" or "QRS depolarization," it is about a(n) _____ rhythm.

Ventricular rhythm

If a question mentions the "p wave," it is about a(n) _____ rhythm.

Atrial rhythm

Lack of QRS



Atrial flutter





Wide, bizarre set of QRS complexes -- This rhythm is like a snapshot V Tach.


In which two circumstances can you elevate a PVC from low priority to moderate priority?

-- More than 6 PVCs/min or more than 6 PVCs in a row
-- If the PVC falls on the T wave of the previous beat

Which two arrhythmias are lethal and will kill you in less than 8 minutes?

Asystole and VFib

Treatment for PVCs and V Tach

Lidocaine and amiodarone

What is the correct way to administer adenosine? What can you expect from the patient?

Fast IV push (< 8 seconds) followed by 20 mL NS into a big vein; patient will go into asystole for about 30 seconds

Suffix for beta blockers


Your patient has atrial fibrillation and asthma. Would you give a CCB or a beta blocker? Why?

CCB -- even selective beta blockers can cause bronchoconstriction

Which four drugs are indicated for supraventricular arrhythmias?

ABCDs -- adenosine, beta blockers, calcium channel blockers, digitalis

For V Fib, you _____.

Defib -- shock them!