Chapter 17: Cardiovascular Emergencies Flashcards
Arteries supply of O2
carotid
subclavian
brachial
radial ulnar
iliac
femoral
tibial
dorsal
Pulse areas
carotid
brachial (children/infants)
radial (conscious)
femoral
radial
dorsal pedis
posterior tibial
Atherosclerosis
blockage in BV
narrowing lumen (inner layer of vessel)
Thromboembolism
Clot floating around until it enters a narrow area and blocks BF
Acute coronary syndrome
myocardial ischemia (lack of BF)
-angina pectoris or angina: heart not getting enough O2, spasm of artery
Unstable vs Stable angina
unstable- occurs in the absense of increased O2 demand
stable- occurs where O2 need has increased
AMI
ischemia leads to infarction or
dead heart cells
decreases contractility
- can use thrombolytic meds or angioplasty to restore BF
radiating arm pain
chest pain
pressure in lower jaw
-pink frothy sputum (like CHF) left sided heart decrease contractility and backup into pulmonary vessels
Left sided vs right sided heart failure
Left sided failure from AMI
right sided- from left sided issues
Premature Ventricular Contractions
Contractility is off in heart vessels
Hypertensive emergencies
Systolic greater than 180mmHg
sudden severe headache
dizziness
nosebleed
sudden pulmonary edema
Aortic Aneurysm
different BP
sudden chest pain
AMI vs Dissecting Aneurysm
onset- gradual vs abrupt
quality- tightness vs sharp or tearing
severity- increase w time vs max from onset
timing- wax and wane vs does not abate
region- substernal; back is rarely involved vs between shoulder blades
clinical signs- peripheral pulse pressure vs BP discrepancy
Nitroglycerin
.4 mg sublingual
relaxed blood vessels
vasodilation
decreases preload
systolic >100 mm Hg
head injury
erectile dysfunction drugs
max dose has been given (3 tablets)
Aspirin
anti platelete coagulant
81 mg tablets
Electrodes placement
V1-V2- 4th intercoastal space (sternum sides)
V4- nipple midclavicular
V6- midaxillary line
V3 and V5 in between others (1-6)
Limb electrodes
clouds over grass (right side white and green)
smoke over fire (left side black over red)