What are the semilunar valves called?

right atrium and right ventricle

What happens during diastole?

left ventricle is filling up with the blood, and aortic valve is closed

left atrium is filling up with blood, and aortic valve is closed

left ventricle is filling up with blood, and aortic valve is open

left atrium is filling up with blood, and aortic valve is open

What are the four characteristics of cardiac cells?

excitability, conductivity, automaticity, and contractility

automaticity, excitability, conductivity, and controllability

conductivity, transitivity, automaticity, and excitability

contractility, automaticity, transitivity, and excitability

the amount of blood ejected with each ventricular contraction

the amount of blood the heart pumps per minute

the amount of pressure the left ventricle must work against to pump blood into the aorta

the ability of the heart muscl cells to contract after depolarization

What does a lead provide?

a view of the heart's electrical activity between one positive pole and negative pole

a view of the heart's electrical activity between two positive poles

a view of the heart's electrical activity between two negative poles

a view of the heart's electrical activity between two positives and two negatives

Where is lead V1 placed?

on the right side of the sternum at the 4th intercostal rib space

at the left of the sternum at the 4th intercostal rib space

at the 5th intercostal rib space at the midclavicular line

at the right of the sternum at the 5th intercostal rib space

Where is lead V5 placed?

placed at the 5th intercostal space at the anterior axillary line

on the right side of the sternum at the 4th intercostal space

at the 5th intercostal space at the midclavicular line

at the left of the sternum at the 4th intercostal space

What is the easiest way to calculate heart rate especially if the rhythm is irregular?

10 times method (6-second interval)

What causes sinus arrest?

lack of electrical activity in the atrium

lack of electrical activity in the ventricles

The heart is located in the chest

behind the sternum in the mediastinal cavity

in front of the sternum in the mediastinal cavity

in the back of the spine between the lungs

behind the sternum and in the back of the spine

EKG Practice Assessment - Section 1

Authored by Leslie Covington

Specialty

12th Grade - University

Used 124+ times

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50 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The bottom of the heart tilts

backwards and down, towards the right side of the body

forwards and down, towards the left side of the body

backwards and down, towards the left side of the body

forwards and down, towards the right side of the body

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The outer layer of the heart is called

myocardium

endocardium

atria

epicardium

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What surrounds the heart and acts as a tough, protective sac

pericardium

myocardium

epicardium

endocardium

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The left atrium receives oxygenated blood through

pulmonary veins

the inferior and superior vena cavae

epicardium

parietal layer

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The right ventricle receives blood from the right atrium and pumps out through

the pulmonary veins

the aorta

myocardium

the pulmonary arteries

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valves does the heart contain?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two AV valves called?

tricuspid and mitral

left atrium and left ventricle

pulmonic valve and aortic valve

superior vena cava and inferior vena cava

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