Question 1

What speed should the EKG be when it's a fast heart rate?

Accepted Answer

50

Question 2

A standard EKG uses an amplitude (or gain of ________?)

Accepted Answer

10 mm per 1 mV

Question 3

What should be done before performing an EKG?

Accepted Answer

gather pertinent medical, social, surgical, and medication histories from the patient

Question 4

What are some equipment needed for an EKG?

Accepted Answer

EKG machine, leads with clips, electrodes, power source, alcohol wipes, electrolyte pads

Question 5

What is the usual setting of an EKG?

Accepted Answer

40 hertz (Hz)

Question 6

What causes a wandering baseline?

Accepted Answer

improper placement of the electrodes

Question 7

What is the second pacemaker?

Accepted Answer

the junctional pacemaker

Question 8

What is the final pacemaker from the heart?

Accepted Answer

the Purkinje fibers

Question 9

Atrial fibrillation is when _________?

Accepted Answer

there is no organized contraction of the atria

Question 10

The sinoatrial node is known as the _______?

Accepted Answer

the pacemaker of the heart

Question 11

What are the heart layers?

Accepted Answer

pericardium, epicardium, myocardium, endocardium

Question 12

What is a first-degree atrioventricular block?

Accepted Answer

is a delay in conduction from the SA node to the AV node

Question 13

This image shows the following EKG tracing?

Accepted Answer

Supraventricular tachycardia

Question 14

Ventricular fibrillation (VF) causes the following symptoms:

Accepted Answer

dizziness, a feeling of impending doom, chest discomfort, shortness of breath, seizure activity, and death

Question 15

Junctional dysrhythmias occur at the _________?

Accepted Answer

AV node or tissue

Question 16

What does the P wave represent?

Accepted Answer

atrial depolarization and begins when the SA node fires

Question 17

What is the order of a 12-lead?

Accepted Answer

V1, V2, V4, V3, V5, V6

Question 18

What is agonal rhythm?

Accepted Answer

a result when all the pacemakers of the heat have failed.

CPCT Chapter 5 EKGS