Pre-Paramedic Cardio

Question 1

Atria

Answer 1

Thin-walled, low-pressure chambers
Receive blood from systemic circulation and lungs
Atrial kick

Question 2

Atrial dysrhythmias may occur because of:

Answer 2

Abnormal automaticity
Triggered activity
Reentry

Abnormal automaticity and triggered activity are disorders in impulse formation

Reentry is a disorder in impulse conduction

Question 3

what is the most common for of an SVT?

Answer 3

Atrioventricular reetrant tachycardia

Also know as AVNRT

Question 4

Abnormal Automaticity Can occur in

Answer 4

Occurs in normal pacemaker cells and in
Myocardial working cells that do not normally function as pacemaker sites

These cells fire and initiate impulses before a normal SA node impulse

Question 5

Compensatory Pause

Answer 5

compensatory pause is present if

the period between the complex before and after a premature beat is the same as two normal R-R intervals

Question 6

Non compensatory Pause

Answer 6

A non compensatory (incomplete) pause often follows a PAC

This represents the delay during which the SA node resets its rhythm for the next beat

Question 7

Vagal Maneuvers

Answer 7

Methods used to stimulate the vagus nerve and release of acetylcholine. In attempt to slow conduction through the AV node, thereby slowing down the heart rate.

Example: take a 10cc syringe and ask the patient to try and blow the plunger out.

Question 8

Synchronized cardioversion

Answer 8

is delivery of a shock to the heart by means of a defibrillator to terminate a rapid dysrhythmia.

Examples: narrow QRS tachycardia, AFib, atrial flutter and monomorphic ventricular tachycardia.

(12 lead machine is used for this process)

Question 9

Triggered Activity

Answer 9

Occurs when escape pacemaker and working cells fire more than once after stimulation by single impulse.

Example: PVC, PAC A-Fib PJC

Question 10

What Rhythm?

Answer 10

Sinus Rhythm

Question 11

CHARACTERISTICS OF SINUS RHYTHM

Answer 11

R-R and P-P intervals are regular

60 to 100 BPM

Postive (upright) P-waves one precedes each QRS complex P-waves look alike.

PR interval 0.12 to 0.20 sec constant from beat to beat.

QRS 0.11 sec or less

Question 12

What Rhythm?

Answer 12

Sinus Bradycardia

Question 13

CHARACTERISTICS OF SINUS BRADYCARDIA

Answer 13

R-R and P-P intervals are regular

Less than 60 BPM

Postive (upright) P-Wave one precedes each QRS complex

PR-interval 0.12 to 0.20 sec and constant from beat to beat.

QRS 0.11 sec or less (Narrow)

Question 14

What Rhythm?

Answer 14

Sinus Tachycardia

Question 15

CHARACTERISTICS SINUS TACHYCARDIA

Answer 15

R-R and P-P intervals are regular

Usually 101-180 BPM

Postive (Upright) P-Waves one procedes each QRS complex; P waves look alike.

PR-interval 0.12 to 0.20 sec and constant from beat to beat.

QRS 0.11 sec or less (Narrow)

Question 16

What Rhythm?

Answer 16

Sinus Arrhythmia

Question 17

CHARACTERISTICS SINUS ARRHYTHMIA

Answer 17

Rhythm- Irregular, Typically phasic with breathing

Rate- Usually 60 to 100

P-Waves postive (upright) one with each QRS

PR-interval 0.12 to 0.20 sec

QRS- 0.11 sec or less abnormally conducted

Question 18

What Rhythm?

Answer 18

Sinoatrial Block

Question 19

CHARACTERISTICS (SA) BLOCK

Answer 19

Rhythm; Regullar except for the of pause. (Drops one full QRS )

Rate; Varies, because of the pause.

P-waves- when present positive one with each QRS

PR-interval- when prensent 0.12 to 0.20 sec

QRS- 0.11 sec or less, unless abnormally conducted

Question 20

What Rhythm?

Answer 20

Sinus Arrest

Question 21

CHARACTERISTICS SINUS ARREST

Answer 21

Rhythm- Regular except for the event of pause. (Drops Two Full QRS)

Rate- varies, because of the pause.

P-Waves- when present, postive (upright) one with each QRS

PR-interval- when present 0.12 to 0.20 sec

QRS- 0.11 sec or less, unless abnormally conducted.

Question 22

What does VOMIT Stand for?

Answer 22

VITALS

02

MONITOR(12-LEADS)

IV

TRANSPORT

(I AM GOING TO VOMIT THE PATIENT)

Question 23

What Drug would you push for an Stable SVT patient?

Answer 23

ADENOSINE

Question 24

If you have an unstable SVT patient that needs Synchronized Cardioversion how many joules would your start with?

Answer 24

50

Question 25

If you have an unstable patient with A-Fib or Aterial Flutter that needs Synchronized Cardioversion how many joules would your start with?

Answer 25

120

Question 26

If you have an unstable patient with V-Tach that needs Synchronized Cardioversion how many joules would your start with?

Answer 26

100

Question 27

What Rhythm?

Answer 27

Premature Atrial complexes

(Also know as PAC’S)

Question 28

Premature Complexes

Answer 28

Premature beats appear early, that is, they occur before the next expected beat

Premature atrial complexes (PACs)

Premature junctional complexes (PJCs)

Premature ventricular complexes (PVCs)