ECG

Question 1

if current flow TOWARD postive electrode, is it pos or neg

Answer 1

pos

Question 2

if current flow AWAY postive electrode, is it pos or neg

Answer 2

neg

Question 3

Pos electrode on right side of sternum, R wave is what?

Answer 3

negative

Question 4

Pos electrode on right side of sternum, L wave is what?

Answer 4

positive

Question 5

intrinsic rate of SA node

Answer 5

60-100 bpm

Question 6

insipid rate of Av node

Answer 6

40-60

Question 7

intrinsic rate of ventricles

Answer 7

15-40

Question 8

ECG

Answer 8

heart electrical events during cardiac cycle

Question 9

Normal PR interval

Answer 9

.12-20 sec

Question 10

Norma QRS complex

Answer 10

.04-.11

Question 11

how much is each 1 mm box

Answer 11

.04 s

Question 12

how much is each 5mm box

Answer 12

,20 s

Question 13

1500 method

Answer 13

calculate R-R interval (1 mm squares)

1500/ # of squares

Question 14

sinus bradycardia

Answer 14

hear rate <60

endurance trained/sleep

Question 15

sinus tachycardia

Answer 15

sinus rhythm excesss of 100pbpm

exercise, anxiety etc..

Question 16

3 or 5 lead ECGs

Answer 16

patient in warm print w nurse (most. beneficial)

Question 17

12 lead ECG

Answer 17

for initial / re assessment

more accurate

Question 18

6 steps to interpret ECG

Answer 18

calculate Rate
Calc rhythm
Examine P wave and QRS complex
exame PR interval
Check terrible train (schema, injury, infarction)
hemodynamic convinces?
Action?

Question 19

how to calculate rhythm

Answer 19

Atrial:p-p
Ventricluar: r-r
paper pen method

Question 20

how to know rhythm irregular

Answer 20

slighting: = .04 or less
markedly = +.04

Question 21

how to examine P wave

Answer 21

is it before QRS
2-4 mm high
.06-.12 s

Question 22

how to examine QRS

Answer 22

after P
5-30mm high
0.4-11 s

Question 23

p wave

Answer 23

atrial , SA node

Question 24

peaked / enlarged P wave

Answer 24

atrial hypertrophy, COPD, heart failure

Question 25

inverted P wave

Answer 25

reverse conduction from atrioventricular

Question 26

varying p waves

Answer 26

impulse from different site

Question 27

absent p wave

Answer 27

not from SA

Question 28

no P wave

Answer 28

heart block

Question 29

whats a deep/wideQRS mean

Answer 29

MI

Question 30

missing QRS mean

Answer 30

atriventricul block

Question 31

How to examine PR interval

Answer 31

duration 0.12-20

Question 32

prolonged PR interval meening

Answer 32

delay or hear block

Question 33

shortened pr interval

Answer 33

not from SA

Question 34

how to check for terrible triad

Answer 34

1-inverted T way?
2- elevated or depressed ST?
3- Negative Q wave

Question 35

if inverted T way what means

Answer 35

myocardial ischemia

Question 36

What does elevated or depressed St wave mean

Answer 36

greater 1mm myocardial injury

Question 37

whats negative Q wave mean

Answer 37

.04 + means myocardial infarction / necrosis

Question 38

Diagnose MI

Answer 38

chest discomfort

ST segment abnormal

Question 39

Premature Ventricular Contaction

Answer 39

early beat
wide QRS
St/T oppose to QRUS

Question 40

T/F P wave associated w Premature Ventricular Contaction

Answer 40

false

Question 41

hemodynamic consequences of rhyme

Answer 41

heart failure
atrial fib
MI

Question 42

absent P wave could mean

Answer 42

atrial fibrillation

Question 43

peaked P wave could mean

Answer 43

heart failure