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Flashcards in Care of The Cardiac Patient Deck (66)
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1

depolarizing=

contracting

2

repolarizing=

resting

3

pacemaker cells that helps the heart function on its own regardless of what the brain does

SA Node

4

when SA node fires then the HR is

60-100bpm

5

what node is next in line if the SA node stops working

AV node

6

when the AV node fires then the HR is

40-60 bpm

7

if something is wrong with the AV node what fires next

purkinje fibers

8

when the purkinje fibers fire then the HR is

20-40 bpm

9

what are the 2 parts of autonomic nervous system

sympathetic and parasympathetic

10

in sympathetic the heart is beating

fast

11

in parasympathetic the heart is beating

slow

12

which nerve responds in parasympathetic

vagus nerve located at the carotid (cranial nerve 10)

13

starling's law of the heart

stroke volume is dependent on venous return

14

if venous return is _______ then stroke volume is _______ and cardiac output is ______

increased; increased; increased

15

what does the right coronary artery feed

the SA node, right atrium, AV node, and part of the posterior wall

16

if there is an inferior wall MI what could be blocked

right coronary artery

17

what does the left main coronary artery bifurcate into

left anterior descending branch and the left circumflex branch

18

if there is an occlusion at the top of the left main coronary artery what is it called

"widow maker"

19

what feeds the left atrium

left circumflex branch

20

what feeds the septum wall

left anterior descending branch

21

on an EKG how many "big squares" are 1 second

5

22

on an EKG how many seconds is 1 tiny square

0.04sec

23

what are the different hardwire monitoring of ECG/EKG

three lead system
five lead system
12 lead system

24

what are the different telemetry monitoring of ECG/EKG

three lead system
5 lead system

25

why should you change a 5 lead EKG daily AND date them

pt sweats and the gel is conductive gel, so when pt sweats it has salt in it so the EKG can be obscured

26

what is the placement for 5 lead EKG

RA (white)
LA (black)
MCL (Brown)
RL (green)
LL (red)

27

for a 5 lead (limb lead) what is lead one

RA (-) to LA (+)

28

for a 5 lead (limb lead) what is lead 2

RA (-) to LL (+)

29

for a 5 lead (limb lead) what is lead 3

LA (-) to LL (+)
*Legs are ALWAYS positive and V1 (MC) is always negative, so aVr, aVl, and aVf are all +

30

flat lines that tell us what is elevated and what is depressed

isoelectric lines