EKG Stuff

Question 1

What is the normal time frame of a PR interval?

Answer 1

0.12-0.20 seconds

3-5 small boxes)

Question 2

What is the normal time frame of QRS?

Answer 2

0.04-0.10

1-2 1/2 boxes

Question 3

What is the normal time frame of QT?

Answer 3

~0.36

Question 4

Long PR indicates…

Answer 4

1st degree AV block

Question 5

Long QRS indicates…

Answer 5

bundle branch block

Question 6

Long QT indicates…

Answer 6

heart isn’t relaxing soon enough (meds can do this)

Question 7

Peaked T wave indicates…

Answer 7

hyperkalemia

Question 8

Flat T wave indicates…

Answer 8

hypokalemia or ischemia

Question 9

How do you check to see if the heart is in regular rhythm?

Answer 9

measure between Ts, if equal than it’s a regular rhythm

Question 10

What is CK?

Answer 10

byproduct of break down of muscle tissue

Question 11

What is abnormal in the ECG in a 1st degree AV block?

Answer 11

PR interval is too long, >0.20 seconds

-can be benign or severe

Question 12

Asystole is only asystole if …

Answer 12

you have checked all leads (no loose leads) and it’s asystole in all leads

Question 13

What is abnormal in the ECG in a sinus tachycardia?

Answer 13

All complexes present (QRST) but over 100 bpm

100-160 bpm

Question 14

What 2 meds treat sinus tachycardia?

Answer 14

beta blockers and calcium channel blockers

Question 15

What medication can treat sinus bradycardia?

Answer 15

atropine

Question 16

Bradycardia= ____ bpm

Answer 16

less than 60 bpm

Question 17

What is abnormal in the ECG in a premature atrial contraction (PAC)

Answer 17

• irregular rhythm

- P wave: premature and abnormal, or hidden

Question 18

PVS usually has no …..

the ECG looks…

Answer 18

no perfusion, ECG looks really weird and irregular weird QRSs

Question 19

What is abnormal in the ECG in Atrial Fibrillation?

Answer 19

Heart rate: A-350-650 bpm, V-slow to rapid
Rhythm: irregular
P wave: fibrillatory (fibbing out, fine-course)
Normal QRS

Question 20

What is abnormal in the ECG in Atrial Flutter

Answer 20

Heart Rate: A-220-430 bpm V- <300bpm
Rhythm: irregular or variable
QRS: normal

Question 21

What is abnormal in the ECG in angina pectoris?

Answer 21

ST segment depression

T wave flattening or inversion

Question 22

What abnormal ECG change occurs with left ventricular hypertrophy?

Answer 22

tall R wave

Question 23

For which cardiac rhythms is defibrillation used?

Answer 23

Ventricular fibrillation or pulseless ventricular tachycardia

Question 24

Pacemakers are for pts with…

Answer 24

bradycardia

Question 25

Synchronized cardioversion is used for clients with dysrhythmias such as…

Answer 25

atrial fibrillation, supraventricular tachycardia (SVT), or ventricular tachycardia with a pulse

Question 26

Administration of IV lidocaine is used in clients with a….

Answer 26

pulseless ventricular dysrhythmia to stimulate cardiac electrical function

Question 27

______, ________, and _________ are the cardiac markers used to determine whether MI has occurred

Answer 27

Myoglobin, troponin, and CK-MB