FF Drogas: Antiarrhythmic + AntiHypertensive Drugs Flashcards
Beta Blockers; Drug Type to Remember
“OLOL”, That B(itch) makes me LOL
- Atenolol
- Metoprolol
- Carvedilol
- Labetalol
- Propranolol
Mechanism of Action of Beta Blockers
Blocks Beta-Adrenergic Receptors
- Blocking action of SNS
Beta-Blockers Effects
- Decreased HR and BP
- Bronchoconstriction
(Sympathetic response is to increase HR and BP and induce bronchodilation, therefore Beta-Blockers do the opposite)
Adverse drug reactions of Beta-Blockers
- Orthostatic Hypotension
- Dizziness
- Tinnitus
- Venous Pooling (vasodilation of blood vessels)
ECG findings with Beta Blockers?
PR interval increases
(HR decreased, therefore PR interval is prolonged)
Effects of Beta-Blockers on Afterload?
Reduces afterload
Conditions in which B-Blockers are contraindicated
- Asthma
- COPD
(will cause the bronchioles to constrict some more)
Calcium Channel Blockers; Drug Types to Remember
“PINES and ZEMS” - Pinecones have a lot of calcium
- Amlodipine
- Verapamil
- Diltiazem
Mechanism of Action for Ca Channel Blockers?
- Blocks entry of calcium in cardiac tissue
- reducing cardiac contractility and vasoconstriction.
Effects of Ca Channel Blockers?
- Decreases HR and BP
(No bronchocontriction seen here, therefore it is safer option for those with COPD or asthma)
Indications for use of either Beta or Calcium Channel Blockers?
- CAD
- HTN
- Arrhythmia
Adverse Effects of Ca Channel Blockers
- OH
- Dizziness
- Lightheadedness
- Tinnitus
- Venous Pooling
(SAME as Beta Blockers)
How to measure exercise intensity for patients taking calcium channel or beta blockers?
RPE; Borg Scale
ECG changes with Ca Channel Blockers?
Prolonged QT Interval
(due to decrease in contractility)
Exercise tolerance changes with Beta Blockers or Calcium Channel Blockers?
Increased Exercise Tolerance
