Antianginal Agents Flashcards
What are betablockers used to treat?
-angia pectoris
- Hypertension
- CAD
- MI
- HF
- Arrhythmias
(essential tremor, glaucoma, migraine attacks)
what is the action of betablockers?
blocks beta-adrenergic1 receptors in the heart and kidneys, which decreased the influence of the sympathetic nervous system.
- decreases cardiac output (lowers BP)
- lowers BP
- decreases cardiac workload
- decreased blood volume (natriuresis)
What drug class is metoprolol?
Beta-adrenergic blocker (selective)
what is the suffix for beta-blockers?
olol
What is the administration of metoporal?
IV
Oral
Side effects of beta blockers
- Bradycardia and blocks
- Breathing problems
- Bad for HF
- Blocks Blood sugar
- low blood pressure
- orthostatic hypotension
- mental status changes (lethargic or fainting)
- difficulty breathing (bronchospasm)
Teaching for betablockers
- monitor for pulmonary edema
- never stop taking (taper off)
- monitor blood glucose
- measure BP at home
- change positions slowly
Contraindications for beta blockers
- bradycardia
- heart block
- carcinogenic shock
- hyperthyroidism
- hypotension
Drug-drug interactions with betablockers
NSAID
clonidine
epinephrine
insulin or diabeteic agents
Nursing considerations for betablockers
assess pulse, and BP prior to admin
- Monitor LFT, RFT, electrolytes, ANA, I & O, and daily weights
Precautions for beta blockers
Diabetes PVD asthma COPD thyrotoxicosis rayounds disease severe hepatic failure
What are the signs and symptoms of a beta blocker overdose?
slow heart rate decrease in blood pressure severe drowsiness dyspnea heart blocks
