EKG Final

ECG stands for ____

electrocardiogram

P wave represents _____

Atrial depolarization 

QRS complex represents _____

spread of electrical impulse

T wave represents

Ventricular repolarization

P wave duration

0.12 secs or less

QRS complex duration

.06-.11

R-R interval, 2 large boxes, the heart rate is

150

On the EKG paper, how many large box is covered in 1 second

5 large boxes

One large square includes how much small squares

5 squares

The property of the SA node by virtue of which it generates its own impulse

automaticity

Atrial fibrillation heart rate is

300-600

The Q wave represents

spectral depolarization

The normal heart rate is how much per minute

60-100

Ectopic beats are also known as ____ beats

Premature beats

How many Cusps does the tricuspid valve have

3

The pulmonic valve is located at the base of

pulmonic artery

Escape beats occur as a result of the escape of the supravenitruclar/ ventiruclar structure from the influence of the ____ Node

SA nodes

Number of electrodes

10 electrodes

Of the 12 leads which are recorded by the the EKG machine, the standard leads are

leads 1,2,3

Sodium, calcium and ____ are key electrolytes

Potassium

Who are the augmented leads?

aVR, aVL, aVF leads

The heart is a ____ pump

double

Location of the V6

Left Midaxillary line, 5th intercostal space

Sternal angle _____ represents

(angle of louis) represents marks 2nd intercostal space/rib

If there is one QRS complex every fourth large square on the EKG paper, what is the heart rate 

75 beats per minute

Heart sounds are produced by ___

Closing of heart (AV) valves, tricuspid and mitral

Heart sound S-1 is best heard at the ___

Apex

Valve between left atrium and left ventricle ___

Mitral valve

The major intracellular ion ___

potassium

The major extracellular ion ___

Sodium

Time for PR interval ___

0.12-0.20

QRS represents ___

Ventricular depolarization

Intrinsic rate of SA node ___

60-100 beats/minc

SA node located ___

upper part of the right atrium 

How many cardiac monitoring pads are utilized when obtaining a 12 lead EKG

10 pads

Ventricular diastole refers to ___

When SL valves close

The left side of the heart is referred to as a high pressure pump true/ false

true

The course of the blood flow through the heart and lungs is referred to as ___recirculation 

Pulmonary

The major blood vessel that receives blood from the heart and upper extremities and transport to the heart

Superior vena cava 

The heart chamber with the thickest myocardium.

Left ventricle