Cardiac Dysrythmias Flashcards

1
Q

ECG shows not all QRS are preceded by a P-wave.

A

Ventricular and Atrial depolarization’s are initiated from different sites.

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2
Q

Patient’s heart rate is 56 bpm without adverse symptoms. Name one thing to tell patient.

A

Avoid Valsalva maneuver as bearing down during a bowel movement can result in slowing of the HR.

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3
Q

The ST segment

A

The point on an ECG where the QRS complex ends.

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4
Q

The J point

A

The junction point between the QRS and the ST segment.

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5
Q

ST depression

A

An elevated Digoxin level will show____on ECG?

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6
Q

An ST elevation myocardial infarction (STEMI)

A

A thrombus formation resulting in complete occlusion of a major coronary vessel.

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7
Q

Beginning of Q to end of T waves

A

Repolarization to Depolarization measurements

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8
Q

P Wave

A

One for each QRS segment

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9
Q

PR Interval

A

Consistently measuring 0.12 to 0.20 seconds

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10
Q

QRS Complex

A

Measuring the Q, R, and S waves (

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11
Q

T-Wave

A

Repolarization of Ventricle

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12
Q

Non-STEMI

A

Ischemia-Injured (but salvageable) tissue.

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13
Q

ST Segment Depression

A

Cardiac tissue injury

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14
Q

Infarction

A

Irreversible Cell death

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15
Q

MONA

A

Morphine, Oxygen, Nitroglycerin, Aspirin

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16
Q

Preload

A

The passive stretching force exerted on ventricular muscle at the END of diastole

17
Q

Afterload

A

The amount of pressure the ventricles generate to overcome the higher pressure in the aorta.

18
Q

Hyperkalemia

A

Life-threatening condition which affects the heart.

19
Q

Cardiac Enzymes

A

Diagnostic data useful in the diagnosis of chest pain.

20
Q

Mitral Valve Opens

A

What occurs when the L. atrial pressure exceeds the L. ventricular pressure?

21
Q

Myocardial Perfusion

A

The primary goal of fibrinolytic therapy given for an acute MI is for?

22
Q

Depolarization

A

The interior of a cardiac cell becomes LESS negative

23
Q

Atrial Fibrilation

A

The most common dysrhythmia associated with mitral valve stenosis is?

24
Q

Supraventricular Tachycardia

A

The goal of therapy is to reduce the HR to allow increased diastolic filling time.

25
Q

Myocardial Infarction

A

The death of cells caused by occlusion of a coronary artery.

26
Q

Normal Sinus Rhythm

A

Rhythm begins in the SA node. An upright P wave prior to each QRS complex. P waves look alike. Constant PR interval. Regular atrial and ventricular rhythm.

27
Q

Sinus Bradycardia

A

The SA node fires at a slower rate. A HR

28
Q

Sinus Tachycardia

A

The SA node fires at a faster rate. A HR > 100 bpm. May have ST depression due to fast rate.

29
Q

Sinus Arrythmia

A

The SA node fires irregularly, usually associated with breathing.

30
Q

Sinus Arrest

A

The pacemaker cells of the SA node fail to initiate an electrical impulse for more than one or more beats thus resulting in absent PQRST complexes on the ECG.

31
Q

Premature Atrial Complex

A

An irritable site within the atria fires before the next SA node impulse is expected to fire.

32
Q

Supraventrricular Tachycardia

A

The arrthymia begins above the bifurcation of the bundle of HIS

33
Q

Atrial Flutter

A

An ectopic atrial rhythm in which an irritable site fires regularly at a very rapid rate (250 - 450).

34
Q

Atrial Fibrilation

A

Irritable sites within the atria firing at a rate of 400-600 bpm causing the muscle to quiver.

35
Q
A
36
Q
A