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Ch. 17 Lecture

Terms in this set (24)

Heart anatomy
4 chambers- vales
like a hybrid pump driven by fuel and elec
Cardiac Output
stroke volume/ how many times it pumps
Blood: Clot Formation
Platelets
Thrombin
Fibrin
Cardiac Dysrhythmia - Lethal Rhythms -> CPR
Asystole
PEA (Pulseless Electrical Activity)
Ventricular Fibrillation
clogged arteries
atherosclerosis
arteriosclerosis
coronary artery disease
thrombus
embolus
embolus
causes a clot that has traveled from somewhere else
cardiac ischemia
inadequate delivery of O2 to the heart
cardiac ischemia causes
plaque/ spasm > narrowing of coronary artery
clot> partial occlusion of coronary artery
workload on heart too much
any combination of these
stable angina (angina pectoris)
increases with exertion
decreases with rest
Acute Coronary Syndrome
...
Test Question
Infarction entails the death of cardiac cells/ ischemia does not/ stable angina does not
ACS S/S
chest discomfort
sudden iaphoresis
skin cool/ pale
dyspnea/ SOB
lightheadnedness
anxiety
feeling of impending doom
N/V
high/low bp
Aortic Dissection
break in aortic wall
blood into wall
chest or abd
s/s aortic dissection
tearing sensation
unequal pulses
-unequal BPs
-syncope
Heart Failure
...
Congestive Heart Failure (CHF)
pump failure
acute or chronic
Blood backs up
nocturnal dyspnea
assess for:
edema
pulmonary
peripheral
JVD/ SOB
Onset
sudden/ gradual
what were you doing when it started?
provocation
hs anything made it better/ worse
position? or movement? or deep breathing?
Quality
can you describe the pain?
dull vs sharp vs pressure
Radiation
- Does the pain go anywhere?
- Do you feel the pain anywhere else?
Severity/ Scale
- Can you rate the pain on 1-10 scale?
Time
- How long has it been going?
- Has it been constant, or does it come and go?
3 lethal dysrhythmias
- Ventricular Fibrilla@on (Vfib)
- Pulseless Electrical Ac@vity (PEA)
- Asystoless
Stable Angina
• Increases w exer@on
• Decreases w rest
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