Class IV

Question 1

Class IV

MOA-

Answer 1

Block the movement of calcium ions across the cell membrane, depressing the generation of action potentials and delaying phases 1 and 2 of repolarization= slows automaticity and conduction

Question 2

Class IV

Names-

Answer 2

• Diltiazem (P)

- Verapamil

Question 3

Class IV

Indications-

Answer 3

• SVT

- Control of ventricular response to rapid arterial rates

Question 4

Class IV

Contraindications-

Answer 4

• Allergy
• Sick Sinus syndrome
• Heart block
• Preg/Lact
• CHF
• Hypotension

Question 5

Class IV

Caution-

Answer 5

• Idiopathic hypertrophic subaortic stenosis

- Renal and liver impairment (exacerbate it)

Question 6

Class IV

Adverse effects-

Answer 6

• Dizziness
• Weakness
• Fatigue
• Depression
• GI upset
• Hypotension
• CHF
• Shock

Question 7

Class IV

Drug-Drug

Answer 7

Many Drug-Drug, look them up