PTFE CP Flashcards
1
Q
clots in R heart end up in _ and clots in L end up in _
A
- R to lungs
- L to brain
2
Q
_ valve in R side of heart and _ valve in L side of heart
A
- tricuspid valve - RA to RV
- mitral (bicuspid) valve - LA to LV
“try” before you “by”
3
Q
heart auscultation points
A
- A: atrial
- P: pulmonary
- E
- To: tricuspid
- Man: mitral
4
Q
normal heart rates
A
- newborn: 120-140
- 1-12 months: 80-140
- 1-3 years: 80-130
- 3-5 years: 8-120
- 6-12 years: 70-110
- 13-17 years: 55-105
- 18+ years: 60-100
5
Q
systole
A
- emptying
- “squeeze”
6
Q
heart sounds
A
- S1: AV closes - onset of systole
- S2: semilunar valve (pulmonar/aortic) close - onset of diastole
- S3 (abnormal): early diastole, associated w/ CHF, athletes
- S4 (abnormal): late diastole, MI or HTN
7
Q
BP classifications
A
- normal: <120/<80
- elevated: 120s/80
- stage 1 HTN: 130s OR 80s
- stage 2 HTN: 140s OR 90s
8
Q
preload
A
- amount of blood in ventricle at end of diastole (LVEDV)
- at end of filling
9
Q
afterload
A
- force LV must generate to overcome aortic pressure
- systemic vascular resistance
10
Q
stroke volume
A
amount of blood ejected w/ each contraction
11
Q
ejection fraction
A
- % of blood ejected from total volume of ventricle
- normal: 55-75%
12
Q
HR and SBP change _ w/ increased exercise
A
- linearly
13
Q
UE exercise vs LE exercise
A
- UE has 30% increase in sympathetic activity - increases HR more markedly
- BP increases more markedly in UE exercise d/t lower mechanical efficiency and recruitment for stabilizing postural muscleds
- UE exercises produces increased BP and HR response
14
Q
CN X (vagus nerve) activation does what?
A
- decreases HR and BP
15
Q
valsalva
A
- intrathoracic pressure increased aganist closed glottis
- collpased IVC and SVC reduce BP and HR
- overshoot of incr BP and decr HR during “phase 4” - overactivation of PNS
16
Q
INR
A
- normal is 1.0
- therapeutic range 2.0-3.0
- check w/ coumadin/warfarin