lab 13 Flashcards

(40 cards)

1
Q

detects the feel of the pulsation of blood in an available artery and determines the point at which the pulsation stops when the pressure is applied

A

indirect method

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2
Q

the applied pressure balances the pressure in the artery when the vessel collapses so

A

blood no longer flows

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3
Q

uses sound to accomplish the same purpose

A

auscultatory method

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4
Q

blood rushing through vessel makes sound

A

auscultation

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5
Q

the blood rushing through vessel makes a reaily identified sound and that sound is called/ the method relies on the detectionof sound

A

korotkoff sounds

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6
Q

indirect methods

A

palpation, stethoscope, microphone

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7
Q

how many pressures are needed to be detect

A

2

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8
Q

the pressure exerted by the contraction of the heart and the resulting pressure transmitted to the arteries

A

systolic pressure

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9
Q

the lowest pressure in the artery when the heart is at rest and the runoff and resilience of the artery maintains flow in the system just before the heart contracts again

A

diastolic pressure

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10
Q

difference between systolic and diastolic

A

pulse pressure

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11
Q

measurement of pressure

A

millimeters of mercury mm Hg

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12
Q

the meaning of Hg

A

the venous pressure is sometimes in mm of water

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13
Q

palpation method can only be detected by which pressure?

A

systolic

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14
Q

is palpation accurate?

A

not so much, method of last resort

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15
Q

what is felt first after putting the bp cuff?

A

radial pulse

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16
Q

in auscultatory method what pulse is first detected

A

brachial artery at the bend elbow

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17
Q

what sound should be detected?

A

thumbing, a sudden decrease in sound intensity, disappearance of sound

18
Q

first sound

A

systolic pressure

19
Q

second sound

20
Q

third sound

A

blood flows unimpeded through the artery

21
Q

lay hand on the back and raise hand slowly while observing the veins on the back of hand

A

venous system

22
Q

SA node sends electrical impulses to

23
Q

AV node sends AP to

A

the entire muscle that causes contraction

24
Q

person who formulated the mathematics of visualizing a source of electrical current and used the triangle method

A

einthoven’s triangle

25
Lead I
right and left arm ( left arm is+)
26
Lead II
right arm and left left (ll +)
27
Lead III
left arm and left leg (ll +)
28
Triangle is made by counting the leads
counter clockwise
29
values plotted for each lead
R-(Q+S)
30
ventricular depolarization
QRS complex
31
AV nodal delay
PR segment
32
atrial depolarization
P-wave
33
ventricular repolarization
T-wave
34
ventricular contraction
ST segment
35
the length of the arrow is the
electrical voltage
36
the direction is the
axis of the heart
37
represents the electrical activity and also indicates the tilt of the heart in the chest
true
38
exercise or heart disease
enlarge the left ventricle so axis shifts
39
designed to determine electrical events in a transverse plane
six chest leads
40
always ground
RL