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I&M > Keywords Test 2 > Flashcards

Keywords Test 2 Flashcards

1
Q

the first thing to do if there is an airway fire

A

remove tube, but gave credit for both

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2
Q

letters ECG stand for what

A

electrocardiogram

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3
Q

type of amplifier used in ECG monitoring

A

differential

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4
Q

classic limb lead electrodes vs. right leg electrodes

A

used for noise reduction in other leads

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5
Q

full scale accuracy calculation and application

A

50 torr, 1/6th of capacity, +-2% of 300, 6, can be high as 56.

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6
Q

portion of ECG used as an isoelectric reference

A

PR segment

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7
Q

Question: Improves as value decreases?

A

precision

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8
Q

meaning of the ASK acronym

A

attitude skills knowledge

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9
Q

aortic pressure at valve opening

A

arterial diastolic.

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10
Q

property of the ESU device that prevents electrical shock

A

too high of a frequency

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11
Q

appearance of an over dampened arterial wave

A

Loses sharpness - Loses dicrotic notch

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12
Q

time after J point of ST measurement

A

60

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13
Q

leads possible with three limb electrodes

A

6

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14
Q

arterial pressure differences in moving to distal arterial waveforms

A

systolic increases as you go distal. diastolic decreases

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15
Q

What is the diameter of and ecg lead?

A

1 cm

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16
Q

most sensitive lead for the detection of myocardial left ventricular infarction

A

V4

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17
Q

Question: How many receptors may still be blocked with 3/4 twitches?

A

80

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18
Q

amplidtude of R wave changes with respiration

A

heart moved around by the lung. axis follows the heart.

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19
Q

decrease in which of the following will increase the liklihood of ringing

A

line diameter

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20
Q

required frequency ranges for various ECG monitoring functions

A

Highest frequency range = pacemaker; lowest range = ST segment

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21
Q

the V1 ECG lead is located at what position

A

4th intercostal space, right of sternum

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22
Q

effect of moving the ECG electrode from wrist to shoulder

A

increase in amplitude

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23
Q

type of filters used during AHA ECG monitoring

A

band pass

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24
Q

the J point defninition

A

point at which ventricular depolarization is complete

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25
Q

manual vs. direct BP measurements

A

underestimates at high pressures

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26
Q

sources of common mode interferance

A

room electrical power

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27
Q

normal range of the cardiac vector in degrees

A

-30 to +110

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28
Q

Supine, upper arm bp vs calf

A

Systolic higher, diastolic lower. 140/80 -> 150/75

29
Q

normal QRS (RS) complex as displayed in lead III

A

Negative deflection in lead III w/ QRS

30
Q

recognition of waves present during ventricular depolarization

A

S is always a downstroke below the isoelectric line.

31
Q

cardiac vector axis determination

A

aVR

32
Q

current AHA recommendations for ECG diagnostic amplifiers

A

0.05-150

33
Q

how arterial tonometry works

A

Vascular unloading

34
Q

functions of an ECG monitor that require the inclusion of the lowest frequencies

A

ST segment has the “slowest change”

35
Q

Korotkoff sounds

A

Snapping

36
Q

Dinamap uses what to derive mean pressure?

A

maximum pulsation amplitude

37
Q

correctly zeroed calibrated bp transducer used m below the patient’s heart reads a systolic pressure of 144, what is the patient’s actual

A

70

38
Q

safety standards in microschock situations

A

10 mA

39
Q

duration of the ST interval

A

280 ms

40
Q

definition of alarm modes

A

warning

41
Q

what determines fundamental frequency of the arterial waveform

A

heart rate

42
Q

effects of misplaced ECG leads

A

V5 is the electrical summation of all the others except the green / this one, all were moved around except brown/V5; answer was V5 will be normal.

43
Q

effects of misplaced ECG leads

A

Lead 3 appears as lead 2 Connection Socket: leads
green brown
black white
red red
white black
black green

44
Q

recognition of CS5 lead. Negative right clavical, positive on V5

A

CS5

45
Q

cardiac vector axis determination

A

negative aVF

46
Q

interpretation of upward sloping ST segments

A

when ST segment stays below iso electric, it’s abnormal

47
Q

relationships of leads in the hexaxial reference system

A

aVL

48
Q

appearance of “injury potential” on an ECG

A

ST segment variation

49
Q

Connecting RA electrode to non-inverting input and summation of LA and LL electrodes to theinverting input will produce which ECG lead

A

aVR

50
Q

volume of continuous flush devices, when is the isoelectric line generated

A

1 to 3 cc/hr

51
Q

meaning of RAZ

A

ischemia detection

52
Q

values for “delta down”

A

10

53
Q

ST segment measurement and ischemia

A

1 mm

54
Q

recognition of an ECG complex /”complex” = several waves in a row. picture was the QRS complex

A

complex

55
Q

ischemia detection using multiple ECG leads

A

96

56
Q

interpretation of a cartoon representation of the cardiac depolarization vector

A

R

57
Q

standards for NIBP measurement

A

”+- 5mmHg”

58
Q

arterial line frequency response curves/graph

A

Chart with 4 different waveforms, the correct one is the highest natural frequency (D)

59
Q

correct use of stopcocks

A

close to air for operation, open to patient and transducer

60
Q

recognition of damped arterial waveforms

A

most rounded

61
Q

recognition of the effets of a small amount of air in an arterial system

A

ringing waveform

62
Q

recognition of pulsus paradoxus

A

pulsus paradoxus - respiratory variations

63
Q

Recognition of lowest natural frequency and lowest dampening coefficient.

A

highest ringing waveform. low coefficient means it doesn’t dampen

64
Q

calibration signal of an ECG

A

1 mV

65
Q

cartoon frowny face and J point variation

A

frown = myocardial injury

66
Q

reason for specific placement of ECG electrodes in an MRI

A

Patient burn. Changes at too low of a frequency to produce a shock. Picks up current from magnet to produce a burn

67
Q

Most fluid BP transducer systems are underdampened

A

TRUE

68
Q

short stiffy better than long floppy

A

TRUE

69
Q

no effect of air in a transducer line during “zeroing”

A

TRUE

I&M (2 decks)

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