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CVT Semester 1 > EKG Final Review > Flashcards

EKG Final Review Flashcards

1
Q

Phase 0

A

Qrs on ekg

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2
Q

Phase 1

A

Early repolarization; slight decrease on waveform

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3
Q

Phase 2

A

Plateau phase; ST segment

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4
Q

Phase 3

A

Rapid repolarization; t wave

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5
Q

Phase 4

A

Polarization; resting

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6
Q

Non pacemaker site generate a faster than normal impulse or a pacemaker site that generates at a faster than normal rate

A

Enhanced automaticity

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7
Q

Cells in non-pacemaker site depolarize more than once after a single stimulus

A

Triggered activity

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8
Q

What creates conditions for reentry

A

Accessory pathways

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9
Q

Bipolar leads

A

Standard and MCL

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10
Q

Unipolar leads

A

Augmented and precordial

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11
Q

Einthoven: right arm always ______, left leg always _______.

A

Negative, positive

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12
Q

Unipolar: computer assumes central point is _____

A

Negative

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13
Q

When are MCL used

A

Distinguish between L/R BBB and distinguishing between different arrhythmias

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14
Q

PR interval activity

A

SA node thru Perkinje fibers

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15
Q

Normal p wave measurements

A

2.5mm high, 0.12 sec duration

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16
Q

PR segment activity

A

AV node and his-purkinje activation

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17
Q

Normal PR interval

A

.12-.20

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18
Q

ST segment correlates to which refractory period

A

Absolute refractory period

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19
Q

Peak of T wave to bottom of T wave corresponds to what refractory period

A

Relative

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20
Q

Sequential intervals

A

300, 150, 100, 75, 60, 50

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21
Q

Period of supernormal period on ekg

A

Any time after T before QRS

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22
Q

No stimulation will result in contraction l; beginning of QRS to peak of T wave

A

Effective (absolute) refractory period

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23
Q

Symptomatic sinus Brady treatment

A

Atropine .5-1.0 mg

24
Q

Sinus tach range

A

101-180

25
Q

Frequent PACs may induce episodes of ______

A

A fib or PSVT

26
Q

Most commonly seen dysrhythmia

A

A fib

27
Q

A tach range

A

150-250

28
Q

A-tach treatment

A

Vagal, adenosine (6-24mg), cardioversion

29
Q

A fib recognition

A

F/T waves irregular among themselves

30
Q

A flutter

A

F/T waves regular among themselves; regular rhythm

31
Q

First degree block conduction

A

Delayed

32
Q

Second degree block conduction

A

Intermittent

33
Q

Third degree block conduction

A

None

34
Q

First degree block commonly found in

A

AV node

35
Q

Second degree type one commonly found in

A

AV node

36
Q

2nd degree II/3rd degree found

A

Bundle of his/bundle branches

37
Q

2nd degree type 2 can rapidly progress to what

A

3rd degree

38
Q

Only electrical connection between atria and ventricles

A

Bundle of his

39
Q

Asystole medication

A

Epinephrine

40
Q

Epinephrine dosage

A

.5-1.0

41
Q

Vasopressin dosage

A

40 units IV injection

42
Q

Lidocaine dosage

A

1.0mg/kg IV inj.

43
Q

Amiodarone dosage

A

150 atrial

300 ventricular

44
Q

Lidocaine usage

A

Ventricular arrhythmias

45
Q

Sodium bicarbonate usage

A

Cardiac arrest, acidosis

46
Q

Sodium bicarbonate dosage

A

1 mEg IV inj.

47
Q

Adenosine is treatment for

A

A tach

48
Q

Accelerated junctional rate

A

61-100

49
Q

Junctional tach rate

A

101-180

50
Q

R atrial enlargement criteria

A

Tall peaked P waves in 2, 3 and AVF

51
Q

L atrial enlargement criteria

A

Broad or notched p wave in leads 1,2, AVL, v4, v5 or v6

52
Q

Suppresses automaticity and spontaneous depolarization of ventricles

A

Lidocaine

53
Q

Prolongs the duration of action potential by increasing the length of the refractory periods

A

Amiodarone

54
Q

3 functions of pacemakers

A

Sense, stimulate, store

55
Q

Pacemaker access site

A

Subclavian, femoral or brachial veins

CVT Semester 1 (3 decks)

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