Ch 44

Question 0

Calcium channels are always coupled with what other receptors?

Answer 0

Beta 1 adrenergic receptors

Question 1

Calcium channels help regulate functions of what 3 areas

Answer 1

Myocardium
SA node
AV node

Question 2

Calcium channel blockers / calcium antagonist prevent calcium ions from doing what

Answer 2

Entering cells therefor preventing contraction

Question 3

CCBs and beta blockers have the same action on heart and that’s what

Answer 3

Reduce force of contraction and slow heart rate

Question 4

What are three classes of CCBs

Answer 4

Nifedipine
Verapamil
Diltiazem

Question 5

Nifedipine (adalat) - CCB blocks calcium in blood vessels (arterioles only) causing vasodilation. The three major indications are what

Answer 5

Angina pectoris
Hypertension
Migraine headaches

Question 6

Verapamil (calan) - CCB blocks calcium in blood vessels and heart. Three major indications are what

Answer 6

Angina pectoris
Essential hypertension
Cardiac dysthymias

Question 7

What are 7 adverse effects of verapramil (CCB)

Answer 7

Constipation 
Dizziness
Facial flushing 
Headache 
Edema of ankles 
Gingival hyperplasia (overgrowth of gum tissue) 
Heart block

Question 8

CCBs should be used with GREAT CAUTION because of increased risk of mortality in patients with what 3 disorders

Answer 8

Myocardial infarction
Unstable angina
Hypertension