Question 1

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

Accepted Answer

50 mm/second

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

Supra-ventricular 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.

Question 19

What is the standard speed of an EKG?

Accepted Answer

25 mm/second

Question 20

When is a 3- or 5-lead EKG and telemetry used?

Accepted Answer

for ongoing monitoring or during emergency transports

CPCT Chapter 5: EKGS