#46: Drugs Treating Angina Flashcards
(17 cards)
Function of Coronary Arteries
To distribute blood to the heart
Ischemia
When the O2 demands of the heart aren’t meant
Causes of Ischemia
Reduced coronary blood flow
Decreased O2
Angina
Chest pain resulting from ischemia
CAD Risk Factors: 4
- Smoking
- Diabetes
- HLD
- HTN
Four Types of Angina
- Stable
- Unstable
- Prinzmetal / Variant
- Microvascular
Stable Angina
Precipitated by stress
Relieved by Nitroglycerin
Unstable Angina
Severe
Less relieved by Nitro
Precipitates into MI
Variant Angina
Causes by Coronary Artery Spasm
Not due to atherosclerosis
Refractory
Incapacitating pain w/ no response to Tx
Beta-Blockers Use
Can reduce O2 demands and HR
Calcium Channel Blockers Use
Limit conduction of heart = decreasing O2
Nitrates Use
Dilate vascular smooth muscle
Venous dilation reduces preload
Thrombus Formation
Complication of Unstable Angina
Adjunct Drugs
Help limit complications of angina
Thrombus
HLD
Pain
Nitro Precautions
Severe anemia
Glaucoma
Nitro Adverse Effects
Hypotension
Tachy
Syncope
Veritgo