MED-SURG---Cardiac Rhythm & Dysrhythmias Flashcards Preview

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Flashcards in MED-SURG---Cardiac Rhythm & Dysrhythmias Deck (64)
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1

Multiple PVC's in a row (3 or more) is known as ________________

Ventricular Tachycardia
VTACH

2

what are the "4" rhythms that can be cardioverted?

1) A-Fib

2) A-Flutter

3) SVT

4) V-Tach with pulse

3

Two main systems in the heart

1) Electrical (Conduction)

2) Mechanical (Contraction)

4

most common Dysrhythmia?

atrial fibrillation

5

Delivery of unsynchronized, direct countershock to the heart--Stopping all electrical activity of the heart --allowing the SA NODE to take over nd reestablish a perfusing rhythm.

Defibrillation

6

Calcium Channel Blocker

*INDICATIONS

*ACTIONS

*RATE \ RHYTHM control of rapid Atrial rhythms (A-fib with RVR) A-Flutter, SVT


*SLOWS SA NODAL FIRING= decreased automaticity
*SLOWS TRANSMISSION THROUGH AV NODE = reduced ventricular rate

7

TX for VTACH (w/o Pulse)

1) DRUGS (3)

2) Electrical Mangemet

Amiodarone
Lidocaine
Epinephrine

Defibrillation

8

What is "R on T phenomenon"?

PVC's falling on the T WAVE

9

EQUATION FOR CARDIAC OUTPUT?

Heart Rate x Stroke Volume == CO

10

Vagal Maneuvers (4)

1) blowing through straw
2) Valsalva Maneuver (holding breath and bear down)
3) Ice to face (for babies)
4) Carotid sinus massage (cannot be done by nurse-clot could break off and occlude the carotid)

11

TX for VTACH (with pulse)
1) Drugs (3)
2) Electrical management

Amiodarone
Adenosine
Verapamil

Synchronized Cardioversion

12

indications for adenosine

SVT (regular, narrow QRS of 0.10 or less with rate >150)

13

Immediate intervention needed for V-FIB

CPR / Defibrillation

14

IF allowed to continue---VTACH can deteriorate into ________________

Ventricular Fibrillation

15

PVC that is noted to be EVERY THIRD BEAT

Ventricular Trigeminy

16

INDICATIONS FOR DEFIBRILLATION

1) V-Fibrillation (V-FIB)

2) VTACH (without a pulse)

17

Cardiac cells possess 4 similar properties

AUTOMATICITY ability to depolarize itself. can start an electrical impulse by themselves without any outside initiation

EXCITABILITY--ability to respond to a stimulus

CONDUCTIVITY--ability to transmit a stimulus to a neighboring cell

CONTRACTILITY--ability to respond to a an electrical impulse with a pump or contraction

18

Type of ventricular tachycardia associated with LON QT Syndrome

Torsades de Pointes

19

side effects of ADENOSINE

chest discomfort
lightheadedness
syncope
bradycardia
asystole

20

ability to respond to a stimulus

EXCITABILITY

21

describe the "action" of adenosine

slows conduction through the AV node and interrupts reentry pathways

22

EKG complexes and what do they represent

P WAVE---represents atrial depolarization

QRS WAVE--represents ventricular depolarization

T WAVE --represents ventricular repolarization

23

The EKG reading states that your patient is in ASYSTOLE...what do you do first?

1) Check your patient
2) Check EKG lead (Disconnected lead?)

**IF REAL---BEGIN CPR IMMEDIATELY

24

INDICATIONS for Cardioversion (3)

1) Elective treatment of atrial dysrhythmias

2) SVT

3) VTACH (with a pulse)


**tx of Choice for Clients that are symptomatic

25

first line treatment for dsyrhtymias

adenosine, CCB, BB

26

PVC's originating at more than one site appear different from one another on the ECG (polymorphic) and are called _____________

MULTIFOCAL

27

(7) side effects of Beta blockers

Hypotension

Bradycardia

Bronchospasm

Flushing

CHF

Dizziness

Heart block

28

ability to respond to a an electrical impulse with a pump or contraction

CONTRACTILITY

29

ability to transmit a stimulus to a neighboring cell

CONDUCTIVITY

30

ability to depolarize itself. can start an electrical impulse by themselves without any outside initiation

AUTOMATICITY