2022 EKG EXAM PRACTICE PRATICE QUESTIONS AND ANSWERS

2022 EKG EXAM PRACTICE PRATICE QUESTIONS AND ANSWERS

The human heart consist of how many valves? - 4 valves

Sac surrounding the heart is what? - Pericardium

The inner most layer of the heart is called? - Endocardium

The outer most layer of the heart is called? - Epicardium

The middle layer of the heart is called? - Myocardium

The muscular layer of the heart is called? - Myocardium

Which of the following are bipolar leads? - Lead 1, 11, 111.

Which is unipolar leads? - aVR, aVL, aVF.

Which of the following are precordial leads? - V1-V6

Placement of the V1 electrode Ina 12 lead EKG would be? - 4th intercostal space to the right sternum

P wave morphology can be best described by? - The first wave seen

T wave morphology can be best described ? - The rounded upright wave following the QRS

PR interval morphology can be best described by? - The distance between beginning of the p wave and the beginning of the QRS

QT interval morphology can be best described by? - Measure from the beginning of QRS To the end of T wave

U wave morphology can be best described by ? - Small rounded, upright wave following T wave.

QRS morphology can be best described by? - Deflection of 3 wave followed by the P wave

ST segment morphology can be best described by - Distance between S wave and the beginning of the T wave

What is a cardiac cycle - Sequence of event in one heartbeat. Blood is pumped through the entire cardiovascular system

A systole can be identified as the ? - Contraction phase

Stroke volume can be described as? - The amount of blood ejected from either ventricle In a single contraction .

A diastole can be described as the ? - The relaxation phase

What is cardiac output? - The amount of blood blood pumped through the cardiovascular system in one minute.

Properties of cardiac cell - Automaticity Excitability Conductivity

Heart is located in the? - Mediastinum

Ventricles are the? - Lower chamber of the heart

Which is not a commonly seen wave on an EKG tracing? - U wave

The ability of the heart to create Tia own electrical impulses would be termed? - Automaticity

What do de-oxygenated blood mean? - Blood having no oxygen

What is oxygenated blood - Blood having oxygen

Range for normal heart beat would range from - 60-100

Bradycardia can be described as? - Slow heart rate

Tachycardia can be described as? - Fast heart rate

Which is an important step in performing an EKG? - Identify the patient

Which is a correct statement? - 1 big square equal 5 small square

Which is a correct statement - 1 small square equal 0.04 sec

0.20 sec on an EKG tracing is equal to - 1 big square

Which describes heart rate? - The number of times the heart beats per minutes

Most common way for assessing a regular rhythm on an EKG tracing would be to count - The number of large boxes between the 2 R waves

Which method should be used to calculate hear rate when using large boxes as a reference in 6 sec EKG - 300~by the number of boxes

For small boxes - 1500 divide the number of small boxes

The following can be interpreted by EKG - Rate, Regularity, P wave.

Most common type of EKG used in a physician office setting would be? - 12 leads

The location of Sino atrial is? - The upper portion of the right atrium.

The location of Internodal pathway is - Between SA and AV node

Function of Internodal pathway - Direct electrical impulses between the AV and SA node

Bundle of His is located ? - Below AV node

What is the function of the left bundle branch? - Conducting impulses to the left ventricle

Described the function of bundle of His? - Transmit impulses to bundle branches.

What is the location of the purkinje system? - Terminal of bundle of His.

What is the function of the right bundle branch? - Conduct impulses to the right ventricle

Lead v1-v6 are which type of lead? - Unipolar lead

The ability of the heart to respond to an electrical stimulus - Excitability

The ability of the heart to generate electrical impulses independently without involving the nervous system?

• Automaticity

The ability of the heart to pass or propagate electrical impulses from one cell to another cell is called? - Conductivity

The ability of the heart to shorten in response to an electrical stimulation would be termed? - Contractility

On a 12 lead EKG tracing a normal PR interval is? - 0.12-0.20 sec

On a 12 lead EKG the tracing a normal QRS Interval varies between ? - 0.06-0.10aec

Prior to applying electrodes on the patient skin, which is the most appropriate steps by an EKG tech for better skin contact ? - Briskly scrub the skin with rough paper and wipe it with alcohol pad

Which is a negative wave? - Q wave

Prior to performing an EKG you should ? - Check the patient name and Id...... Verify the patent date of birth......... Check the medical record.

Which chamber of the Heart receive blood from the superior and inferior vena cava ? - Right atrium

Which chamber pump blood through the mitral( bicuspid) valve - Left atrium

Which chamber pump blood through the aortic valve? - Left ventricle

Which chamber pump blood through tricuspid valve ? - Right atrium

Deoxygenated blood is recieved by the right atrium through the? - Superior and inferior vena cava

The valve located between the left atrium and the left ventricle is? - Mitral ( bicuspid) valve

The valve located between the right atrium and the right ventricle is? - Tricuspid valve

The valve located between the left ventricle and the aorta? - Aortic valve

The valve located between the right ventricle and the pulmonary artery? - Pulmonary valve

The duration of a QRS complex in a bundle branch block is? - 0.10 sec

Inferior vana cava recieves blood from the ? - Lower part of the body

The superior vena cava recieves blood from? - Upper part of the body

The amount of blood ejected from either the ventricle In a single contraction is? - The stroke volume

Which is the PACEMAKER generate an impulse of 40-60 bpm? - AV node

The frank starling law of heart states that? - Degree of cardiac muscle stretched can increase the force of ejected blood.

The correct way to calculate cardiac output ( CO) is? - CO(stroke volume * heart rate

U wave represent? - Repolarization of purkinje fibers

ST segment - Measures time between ventricular depolarization and the beginning of repolarization

What is an EKG - Is a series of wave and deflection recording the heart's electrical activity from a certain view.