Cardiovascular Nursing part 3 Flashcards
Antihypertensive Drugs (Adrenergic receptors, ACE Inhibitors, ARBs, Diuretics, Vasodilators), Coronary Artery Disease (Angina, MI), Heart Failure, Cardiotonic Drugs, Sympathomimetic Drugs, Cardiac Glycosides
drug for all kinds of hypertension
Antihypertensive Drugs
stimulates receptors / SNS response
Adrenergic Agonist
blocks receptors / SNS response
Adrenergic Antagonist
Adrenergic Receptors
Alpha receptors
Beta receptors
receptors that are excitatory
beta 1
alpha 1
receptors that are inhibitory / relaxation
alpha 2
beta 2
[Adrenergic Receptors]
- vasoconstriction
- mydriasis (iris constrict)
- urinary retention
alpha 1 receptor agonist
[Adrenergic Receptors]
- vasodilation
- miosis (dilate)
- bladder emptying
alpha 1 receptor antagonist (BV)
- Prazosin
- Doxazosin
- Terazosin
*avoid warm shower, prolonged standing (orthostatic hypotension occurs)
[Adrenergic Receptors]
CNS: ↓ NE flow = ↓SNS
*only agonist that decreases sympathetic NS
alpha 2 receptor agonist (CNS)
- Clonidine (Catapres)
-Methyldopa (Aldomet)
*centrally acting
s/e: Drowsiness (give at night)
[Adrenergic Receptors]
CNS: ↑ NE flow = ↑SNS
alpha 2 receptor antagonist
beta receptor in the heart
Beta 1
beta receptor in the lungs
Beta 2
[Adrenergic Receptors]
↑HR ↑contractility
beta 1 receptor agonist
[Adrenergic Receptors]
↓HR ↓contractility
beta 1 receptor antagonist
[Adrenergic Receptors]
Bronchodilation
beta 2 receptor agonist
[Adrenergic Receptors]
Bronchoconstriction
beta 2 receptor antagonist
Drugs to DECREASE SNS
- Alpha 1 antagonists (BV)
- Alpha 2 agonists (CNS)
- Betablockers
antiHPN drugs that vasodilates and has side effect of COUGH
ACE Inhibitors “-pril”
- Captopril
-Quinapril
-Enalapril
antiHPN drugs that vasodilates and has side effect of GI toxicity
ARBs “-sartan”
- Losartan
-Candesartan
- Telmisartan
antiHPN drugs given during morning as it can cause increased urine output
Diuretics
- Thiazide: Metolazone, Hydrochlorothiazide
-Loop: Furosemide
antiHPN drugs that directly relaxes smooth muscles of the blood vessels
Vasodilators
[Vasodilators]
- Hydralazine (Apresoline)
-Nitrates (NTG, Isosorbide nitrate, Nitroprusside)
Direct Acting Vasodilators
[Vasodilators]
1. Calcium Channel Blockers
>Short-acting CCB: Nifedipine, Amlodipine, Felodipine
> Long-acting CCB: Diltiazem, Verapamil
Indirect Acting Vasodilators
- ↓ Ca = ↓ contractility
Sid effect of Calcium Channel Blockers “-pine”
Headache
also known as Ischemic Heart Disease (IHD)
Coronary Artery Disease (CAD)
artery that supply anterior and lateral wall of heart
LEFT Coronary Artery
artery that supply posterior and inferior wall of heart
RIGHT Coronary Artery
part of left coronary artery that is most affected in Myocardial Infarction
Left Anterior Descending (LAD)
etiology of Coronary Artery Disease / Ischemic HD
Atherosclerosis
Typical symptom of CAD/ IHD
Angina (due to ischemia)
2 venous drainage
- Great Cardiac Vein
- Middle Cardiac Vein
manifestation of CAD on elderly
ATYPICAL: confusion (not angina)
(+) Atherosclerosis gene
3x higher risk for CAD
chest pain or discomfort that most often occurs with activity or emotional stress; increased cardiac workload
Stable angina
condition in which your heart doesn’t get enough blood flow and oxygen due to severe atherosclerosis
Unstable angina
chronic, severe pain (+) Levine sign
Refractory / Intractable Angina
condition in which your heart doesn’t get enough blood flow and oxygen due to coronary vasospasm
Prinzmetal / Variant Angina
occurs when the heart temporarily doesn’t receive enough blood (and thus oxygen), but the person with the oxygen-deprivation doesn’t notice any effects ; asymptomatic
Silent Ischemia
-imbalance between O2 supply and cardiac workload
- reversible
-timing: <15mins
-Relieving factors: rest, NTG
Angina Pectoris
-ischemia and necrosis of cardiac cells
-irreversible
-timing: >30mins
-No relieving factors
Myocardial Infarction
PQRST
P-ain assessment, Position (location), Provocation
Q-uality (constant, heaviness, stabbing)
R-adiation, Relieving
S-everity (pain scale)
T-iming
Priority nursing diagnosis of Angina Pectoris
- Ineffective myocardial tissue perfusion
- Acute pain
- Anxiety r/t fear of withdrawal (Restless)
- Ineffective health maintenance
- Non compliance
Management for Stable Angina
Independent NI:
REST!
(reduce cardiac workload)