Medical Issues Ch. 8 Flashcards Preview

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Flashcards in Medical Issues Ch. 8 Deck (24):
1

coronary arteries origin

base of aorta

2

electrical activity of the heart

begins at the SA node
travels through atrial walls to AV node
moves to the bundle of His
distributed to Purkinje fibers

3

depolarization

electrical impulse

4

repolarization

back to normal

5

P-wave

electrical impulse traveling through the atrium
-atrial depolarization

6

QRS complex

ventricular depolarization

7

S-T segment

ventricular repolarization

8

T-wave

ventricular repolarization

9

cardiac components of PPE

BP
pulse ox.
auscultation
HR
family Hx
-any cardiac disease
--CVD
--cardiac death before 50
personal cardiac history

10

cardiac pathology S/S

chest pain
dyspnea
fatigue
palpitations
syncope
claudication
skin and nail temperature, color and appearance
edema

11

chest pain

angina
-due to myocardial ischemia
can have referred pain to L arm/shoulder with HR

12

dyspnea

shortness of breath
-decreased cardiac output

13

palpitations

"heart fluttering"
heart "skips" a beat"
disruption of electrical rhythm

14

syncope

orthostatic (peripheral dilation)
-stand up too fast
-BP drops as blood moves out to the extremities
increased intracranial pressure
-head injuries
heart failure

15

claudication

impaired gait specifically from decreased blood flow
cramping/pain

16

edema

patients with heart failure

17

medical history and physical exam.

family and personal history
symptoms
inspection
heart rate
respiratory rate
BP - 120/80
-hypertension -
auscultation

18

factors related to hypertension

diet and exercise

19

what is athlete's heart

the concept that the heart of athletes enlarges as a result of cardiovascular training

20

normal physiological response to exercise
-acute
-chronic

acute
-increased HR and SV
-increased systolic BP
-increased breathing
chronic
-decreased HR
-decreased breathing
-decreased BP

21

SCD common causes

HCM - hypertrophic cardiomyopathy
sickle cell trait/anemia
commotio cordis
coronary artery abnormalities

22

what is the grey area between HCM and athlete's heart

arrhythmias
-benign in AH
structural changes
-HCM: cavity size and wall thickness increase
-AH: only wall thickness increases

23

COD for HCM

heart failure
ischemic damage
fatal arrhythmias

24

why does this matter?

education
liability
responsibility
prevention