Chapter 17 - Cardiovascular Emergencies Flashcards

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0
Q

What is the SA node and where is it located?

A

Upper portion of the atrium, primary pacemaker, generates the impulse that triggers the heart to contract

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1
Q

What is Americas number one killer?

A

Heart disease

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2
Q

What is the AV node and where is it located?

A

At The walls that separate the upper and lower chamber, only creates an impulse if the SA node fails

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3
Q

What are purkinje fibers and where are they located?

A

Through out the heart, deliver an impulse if both the SA and AV node fail

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4
Q

What is a P wave?

A

The first wave on an ECG that represents the depolarization of the atria, contraction

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5
Q

What is QRS complex?

A

The second waveform of an ECG that represents the depolarization (contraction) of the ventricles and the main contraction of the heart

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6
Q

What are T waves?

A

The third waveform of an ECG that represents the repolarization ( relaxation ) of the ventricles

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7
Q

What is atherosclerosis?

A

A condition that causes the smallest of arterial structures to become stiff and less elastic

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8
Q

What is ACS.

A

Acute coronary syndrome, a condition in which the coronary arteries are narrowed or occluded by fat deposits, clots or spasm

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9
Q

What is angina?

A

Pain in the chest caused by activities, the pain usually goes away with rest

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10
Q

What is an MI or AMI?

A

Acute myocardial infarction, when a portion of heart tissue dies due to a lack of oxygenated blood

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11
Q

What is an aortic aneurysm

A

A weakened section of the aortic wall begins to balloon outward from the pressure exerted by the blood flow and my suddenly rupture

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12
Q

What is an aortic dissection?

A

A tear in the inner lining of the aorta where blood enters the opening and causes separation of the layers of the aortic wall

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13
Q

What is heart failure?

A

When the heart no longer has the ability to adequately eject blood out of the ventricles, can be left or right

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14
Q

What is cardiogenic shock?

A

When the left and right ventricles fail to produce enough blood to meet the demands of the body

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15
Q

What is CHF?

A

Congestive heart failure, a build up of fluid in the body due to the pump failure of the heart to supply the body with what it needs

16
Q

What is a hypertensive emergency

A

Accelerated hypertension episode with a systolic pressure greater then 160 and/or a diastolic greater than 94

17
Q

What is cardiac arrest

A

When the heart is not pumping effectively or at all, and no pulse can be felt