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Flashcards in Ch 14 questions Deck (79)
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0

_______ allows a cardiac muscle cell to contract spontaneously without a stimulus from a nerve source.

Automaticity

1

The aorta receives its blood supply from the:

Left ventricle

2

Blood enters the right atrium from the body through the:

Vena cava

3

The only vein(s) in the body that carry oxygenated blood is/are the:

Pulmonary veins

4

Normal electrical impulses originate in the sinus node, just above the:

Atria

5

Dilation of the coronary arteries________ blood flow.

Increases

6

The ________ are tiny blood vessels that are approximately one cell thick.

Capillaries

7

_______ carry oxygen to the body's tissues and then remove carbon dioxide.

Red blood cells

8

_______ is the maximum pressure exerted by the left ventricle as it contracts.

Systolic blood pressure

9

Atherosclerosis can lead to a complete _______ of a coronary artery.

Occlusion

10

The lumen of an artery may be partially or completely blocked by the blood-clotting system due to a ________ that exposes the inside of the atherosclerotic wall.

Crack

11

Tissues downstream from a blood clot will suffer from a lack of oxygen. If blood is resumed in a short time, the ________ tissues will recover.

Ischemic

12

Risk factors for myocardial infarction include all of the following EXCEPT:

Increased activity level

13

When, for a brief period of time, heart tissues do not get enough oxygen, the pain is called:

Angina

14

Angina pain may be felt in the:

Epigastrium

15

The underlying cause of a dissecting aortic aneurysm is:

Uncontrolled hypertension

16

Because the oxygen supply to the heart is diminished with angina, the __________ can become compromised, putting the person at risk for significant cardiac rhythm problems.

Electrical system

17

About ________ minutes after blood flow is cut off, some heart muscle cells begin to die.

30

18

An acute myocardial infarction is more likely to occur in the larger, thick-walled left ventricle, which needs more ________ than the right ventricle.

Blood and oxygen

19

Which of the following statements regarding CHF is FALSE?

Stridor is a common lung sound heard on exam

20

Cardiogenic shock can occur within 24 hours of a(n):

Acute myocardial infarction

21

Sudden death is usually the result of __________, in which the heart fails to generate an effective blood flow.

Cardiac arrest

22

Disorganized, ineffective quivering of the ventricles is known as:

Ventricular fibrillation

23

Which of the following is NOT a cause of congestive heart failure?

Chronic hypotension

24

Signs and symptoms of shock include all of the following EXCEPT:

Elevated blood pressure

25

Which of the following changes in heart function occur in patients with CHF?

Enlargement of the left ventricle

26

Physical findings of AMI include skin that is _________ because of poor cardiac output and the loss of percussion.

Gray

27

All patient assessments begin by determining whether the patient:

Is responsive

28

To assess chest pain, use the mnemonic:

OPQRST

29

When using the mnemonic OPQRST, the "P" stands for:

Provocation