Cardiac terms from nearpod Flashcards

1
Q

three muscles layers of the heart

A

pericardium, epicardium, and endocardium

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2
Q

the four chambers of the heart

A

tricuspid, mitral, aortic, pulmonic

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3
Q

where can the apical be auscultated and palpable

A

left chest 5th intercostal space

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4
Q

what is known as the pacemaker of the heart; normal rate is 60-100bpm

A

sinoatrial node (SA)

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5
Q

which valves are open during diastole

A

tricuspid and mitral

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6
Q

atrioventricular vales are known as the

A

tricuspid and mitral valve

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7
Q

during ______ systole contraction of papillary muscles causes the chordea tendineae to become taut, keeping the valve leaflets approximate and enclosed

A

ventricular

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8
Q

S1 sound is the closure of what valves

A

tricuspid and mitral

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9
Q

turbulent blood flow caused by a narrowed or malfunctioning valve

A

murmur

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10
Q

S2 sounds is the closure of what valves

A

aortic and pulmonic

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11
Q

semilunar valves are known as the

A

aortic and pulmonic valves

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12
Q

3 major events in each cardiac cycle

A

diastole, atrial systole, ventricular systole

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13
Q

cardiac output =

A

SV x HR

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14
Q

average adult CO

A

4.7 L

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15
Q

normal range for CO

A

4-8 L

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16
Q

the volume of blood pumped from one ventricle of the heart with each beat

A

stroke volume

17
Q

amount of mLs with each beat

A

70 mls

18
Q

stroke volume is influenced by ______ that return from the ______ from venous circulation in the _______ from pulmonary veins

A

amount of blood; right atrium; left atrium

19
Q

a higher stroke volume does what to the workload of the heat

A

increases

20
Q

the goal of medication therapy for cardiac patients

A

decrease cardiac workload by manipulating the contractility, SV, volume, HR, preload and afterload

21
Q

the filling pressure of the right ventricle

A

preload

22
Q

higher venous return or fluid volume overload will result in what

A

increased SV

23
Q

if the patient has a ___________they will have a lower SV

A

deficit fluid volume

24
Q

normal central venous pressure

A

2-6 mmHg

25
Q

when is the pressure of stretch of the ventricles at its highest

A

at the end of diastole just before contraction

26
Q

starlings law: in a healthy heart as long as you increase preload you will increase ________ which in return to increase the force of __________

A

SV; contraction

27
Q

stretching may decrease contractility in patients with what disease

A

heart failure

28
Q

drugs that cause ________, decrease preload

A

dilation

29
Q

diuretics that eliminate excess fluid volume _______ preload

A

decrease

30
Q

orthostatic hypotension is a decrease of at least ______ systolic pressure or ______ diastolic pressure within 3 minutes if moving, lying to sitting to standing

A

20 mmHg; 10 mmHg