ekg study guide

electrical activity of the heart
The EKG records the:

The normal running speed of the EKG paper

A normal standardization mark should measure:

That extends below the baseline in the QRS complex following the R wave
The S wave is the first negative deflection

There are____ electrodes attached to the patient for Holter Monitoring

Left side, 5th intercostal space midclavicular line

Midpoint between V2 and V4

right side of sternum, 4th intercostal space

left side, 5th intercostal space, midaxillary

0.12-0.20 secs
A normal PR interval should measure

40-60 per min.
The rate of the AV junction is

right leg
which limb sensor is the reference or ground electrode

PR interval of 0.24 seconds
not a normal sinus rhythm

Tension or pulling on electrode lead wire
The following leads to a Wandering Baseline on an EKG

The Q wave is always

Superior and Inferior Cava
Deoxygenated blood enter the right atrium via the

structural heart disease
A murmur is an abnormal sound that may

cardiac output
The term used to describe the amount of blood pumped by the heart per minute is called

90/60 or below
An example of Hypotension is

Which vessel has both oxygenated and deoxygenated blood?

SA Node
The primary pacemaker of the heart

The protective sack that covers

mitral valve
The bicuspid valve is also known as

The ability of the cardiac pacemaker cells to spontaneously generate their own electrical impulses without external stimulation is known as

A pounding or racing of the heart, such as the patient is aware of his/her own heartbeat is called

electrodes are also known as

physicans do stress tests for

0.04 secs
small squares horizonal on EKG are equal to

Vertical axis on EKG paper measures what

stylist mark the paper by what

normal sensitive setting 1mv is which measurement

Normal standardization mark measures

Standardization button
ensure check of the internal caliperation of the EKG

Electrodes on a holter monitor

Correct lead center of the heart to the positive pole of the left leg.

lead 2
correct lead to right arm to left leg

lead 1
correct lead right arm to left arm

center of heart to positive pole of the right arm

lead 3
left arm to left leg.

upper extremities
proper placement for holter monitor

ventricular repolorization results in

PR intervals shorten
Takes place during respirations

.12-20 secs
Normal PR interval is

Normal sinus rhythm has all except

sinus dysrhythmia
Irregular rythum can be caused by

what sinus rythem has a rate of 100 bmp or more

Right leg
which limb sensor is a ground sensor

Patient name and ID
EKG Strip must include

count small boxes and divide into 1500 (between RR intervals)
One method to calculate heart rate

Patient falls asleep
Will not interfere with an EKG

Tension or pulling on a lead wire
will cause a wondering baseline

60 bpm
between R-R intervals on EKG 5 large squares =

first negative wave after the r
The S wave is chacaterised as?

the Q wave if present is always

The beginning of the p wave to the beginning of the ST segment
The PR interval is measured from?

sometimes there is no P wave
Which statement is true about P waves?

P wave
1st electrical impulse of a normal cardiac cycle

Several waveforms are called?

Movement away from the baseline

<.12 seconds
QRS complex is

a waveform in a segment are called

line between waveforms are called

Atrial depolorization
What does the P wave represent?

delay at the AV Node
What does PR segment mean?

ventricular depolorization
QRS complex represents?

a pause between ventricular depoarization and repolorization
ST segment is?

ventricular repolorization
The T wave is?

U wave
What small wave after T wave

Who assigned letters to PQRS?

Source, means of transmission, host
Correct order of Chain of Infection

Go get a female tech.
A female complains that she wants a female to do her EKG, what do you do?

exercise electocardiogram
What test requires a informed consent form to be signed?

Tissue swelling

conidentiallity and privacy

another name for BP cuff?

Vena Cava
Before blood enters Right atrium.

structural heart disease
A murmur indicates what?

Cardiac Output
Term used for pumping blood by the heart

left atrium and left ventrical
Narrowing of the valves

Pulmonary Artery
Blood flows from the heart to the lungs

Which vessels have deoxygenated and oxygenated blood

coronary atery
which artery supplies blood to the heart muscle

which layer of the heart is responsible for contraction and relaxation

SA Node
Primary pacemaker of the heart

Heart Attack
another name for myocardial infarction

Circulation desending aorta carrying oxigenated blood to the body.

electrical event that is expected to result in contraction.


Sac around heart

Bicuspid valve

Left ventrical
Thickest myocardium chamber

exchange of carbon dioxide and oxygen

Pulmonary semilunar valve
Blood leaves right ventrical.. where does it go?


downward and to the left
Apex of the heart points

10 electrodes
12 lead EKG

patient heart rate is normal
one reason not to stop stress test