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Nursing 3 > Cardiac unit 3 > Flashcards

Cardiac unit 3 Flashcards

1
Q

size or fullness of voltage

A

amplitude

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2
Q

Electrical activation of the atria

A

atrial depolarization

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3
Q

contraction of the atria

A

atrial systole

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4
Q

occurs every second beat, as in PVCs

A

bigeminy

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5
Q

elective procedure in which synchronized shock of 25 to 50 joules is delivered to restore normal sinus rhythm

A

cardioversion

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6
Q

condition in which there is a complete dissociation between atrial and ventricular systoles

A

complete heart block

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7
Q

force with which left ventricular ejection occurs

A

contractility

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8
Q

failure of the heart to maintain adequate circulation

A

decompensation

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9
Q

use of electrical device to apply countershocks to the heart through electrodes placed on the chest wall to stop fibrillation

A

defibrillate

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10
Q

belonging to anything naturally

A

inherent

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11
Q

local deficiency of blood supply resulting from obstruction of the circulation to another part

A

ischemia

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12
Q

electrical tracing is at zero and is neither positive nor negative

A

isoelectric line

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13
Q

originating from many foci or sites

A

multifocal

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14
Q

beat occurring every fourth complex, as in PVCs

A

quadrigeminy

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15
Q

defect in heart conduction system in which right bundle does not conduct impulses normally

A

right bundle branch block

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16
Q

occurring every third beat

A

trigeminy

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17
Q

coming or originating from one site

A

unifocal

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18
Q

period of relaxation of the ventricle

A

ventricular diastole

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19
Q

naturally occurring rhythm of the ventricles when the rest of the conduction system fails

A

ventricular escape rhythm

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20
Q

reestablishment of the polarized state of the muscle after contraction

A

ventricular depolarization

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21
Q

contraction of the two ventricles

A

ventricular systole

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22
Q

where normal cardiac impulse originates

A

SA node

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23
Q

where an impulse is delayed before going to the purkinje fibers

A

AV node

24
Q

rhythm with normal P waves, QRS, T waves with a heart rate of 60 to 100 beats per min

A

normal sinus rhythm

25
Q

chamber that receives blood returning to the heart

A

Right atrium

26
Q

chamber that propels blood into the pulmonary artery

A

Right Ventricle

27
Q

the chamber that receives blood from the pulmonary veins

A

Left atrium

28
Q

the chamber of the heart that pumps the blood to the rest of the body

A

Left Ventricle

29
Q

HR less than 60

A

bradycardia

30
Q

HR of more than 100 bpm

A

tachycardia

31
Q

the first negative deflection of a QRS complex

A

Q wave

32
Q

wave that precedes a QRS complex

A

P wave

33
Q

the first positive deflection on a QRS complex

A

R wave

34
Q

the downward deflection after the R wave

A

S wave

35
Q

the wave that follows the QRS complex

A

T wave

36
Q

a small wave seen after the T wave

A

U wave

37
Q

an early beat

A

premature

38
Q

rhythm with normal P waves, QRS, T waves with a heart rate of more than 100 bpm

A

Sinus tachycardia

39
Q

rhythm with normal P waves, QRS, T waves with a heart rate of less than 60 bpm

A

Sinus bradycardia

40
Q

an early beat that has a P wave and a normal QRS complex

A

premature atrial contraction

41
Q

no identifiable P waves with a normal QRS complex; irregularly irregular

A

atrial fibrillation

42
Q

an early beat with no P wave and a wide, bizarre QRS complex

A

premature ventricular contraction

43
Q

successive beats of three or more wide, bizarre QRS complex

A

ventricular tachycardia

44
Q

a chaotic pattern - no visible cardiac cycles

A

ventricular fibrillation

45
Q

no QRS complexes seen - straight line

A

asytole

46
Q

what is the normal time of a P-R interval

A

0.12 - 0.20 seconds

47
Q

what is the normal time of a QRS complex

A

0.06 - 0.11 seconds

48
Q

represents ventricular depolarization of the wave form

A

QRS complex

49
Q

this arrhythmia has a slower than average heart rate the beat originates from the SA node

A

Bradycardia

50
Q

this arrhythmia causes increased risk of thrombus formation

A

atrial fibrillation

51
Q

represents atrial depolarization on the wave form

A

p waves

52
Q

in this arrhythmia, the ventricles are irritable and fire early before the SA node has a chance

A

premature ventricular contraction

53
Q

located in the right atrium

A

SA node

54
Q

with this, a pt is debated and shocked with 25-50 joules to regulate heart

A

cardioversion

55
Q

this arrhythmia results due to the atria firing early. beat does not originate from SA node

A

premature atrial contraction

56
Q

certain amount of force must be generated by the left ventricle during a contraction to eject blood into the aorta through the aortic valve

A

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Nursing 3 (3 decks)

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