Quiz #11

Question 0

The numerous connections among the arterioles of various coronary arteries which allow for development of alternative routes when blood flow in larger coronary artery begins to narrow are called

Answer 0

Collateral circulation

Question 1

Cholinesterase is a naturally occurring chemical that

Answer 1

It regulates acetylcholine in the body

Question 2

Automaticity is defined as the ability of the heart to

Answer 2

Generate it’s own electrical impulses without stimulation from nerves

Question 3

Vasoconstriction occurs when following stimulation of

Answer 3

Alpha receptors

Question 4

Which of the following statements regarding the right side of the heart is correct

Answer 4

The right side of the heart is a low pressure pump

Question 5

Which part of the blood vessel is made up of elastin fibers and muscle and provides for strength and contractility

Answer 5

Tunica media

Question 6

A patient with orthopnea

Answer 6

Experiences worsened dyspnea while laying down.

Question 7

Under normal conditions the strength of cardiac contraction is regulated by

Answer 7

The nervous system

Question 8

The area of conduction tissue in which electrical activity arises at any given time is called

Answer 8

The pacemaker

Question 9

The hearts ability to create its own energy is called

Answer 9

Automaticity

Question 10

If an increased amount of blood is returned to the heart

Answer 10

The cardiac muscle must stretch to accommodate the large volume

Question 11

Stimulation of the parasympathetic nervous system

Answer 11

Slows SA nodal discharge and decreases conduction through the AV node

Question 12

Changes in cardiac contractility maybe induced by medications that have a positive or negative

Answer 12

inotropic effect

Question 13

The layers of the wall of the heart beginning with the outer most layer are the

Answer 13

Epicardium, myocardium, endocardium

Question 14

Stimulation of the parasympathetic nervous system cause all of the following except:

Answer 14

Dilation of pupils

Question 15

Normal EKG paper speed is____mm/sec

Answer 15

25

Question 16

Paroxysmal nocturnal dyspnea is defined as

Answer 16

Acute shortness of breath that suddenly awakes a person form sleep.

Question 17

If the hearts secondary pacemaker becomes ischemic and fail to initiate electrical impulses

Answer 17

You should expect to see a heart rate slower than 40 beats per minute.

Question 18

The P wave represents

Answer 18

Arterial depolarization

Question 19

One large box on the EKG recording paper represent _____ amplitude

Answer 19

.5mv

Question 20

Epinephrine is used to treat patients in anaphylactic shock because of it effects

Answer 20

Bronchialdilation and vasoconstriction

Question 21

The duration of intervals should be no shorter than _____ and no longer than______sec in duration.

Answer 21

.12-.20

Question 22

One large box on the EKG recording paper represent how many times___.

Answer 22

.20 sec

Question 23

Which of the following statements regarding the the SA node is correct

Answer 23

SA node is the dominate cardiac pacemaker in healthy pt’s

Question 24

The amount of blood is pumped out by the either ventricle per minute is called _________

Answer 24

Cardiac Output

Question 25

The hearts anatomical location is most accurately described as being.

Answer 25

Retrosternal

Question 26

A pt with a medical condition that requires antiplatelet therapy would most likely be taking

Answer 26

Plavix

Question 27

Administering a drug that possesses a positive chronotropic effect will have a direct effect on ________.

Answer 27

Heart rate

Question 28

One small box on the EKG recording paper represents how much time____sec.

Answer 28

.04 sec

Question 29

Blood passes through the valve in what order_____,______,______,_______.

Answer 29

Toilet Paper My Ass

Tricuspid, Pulmonic, Mitral (Bicuspid), Aortic

Question 30

An electrical impulse is partially delayed at the AV node so that the

Answer 30

Atrial can empty into the ventricles

Question 31

Cardiac related chest pain is often palliated by:

Answer 31

Nitroglycerin

Not: stress, exertion, or physical activity

Question 32

In the context of cardiac compromise syncope occurs due to:

Answer 32

A drop in cerebral perfusion

Question 33

Thousands of fibrous that are distributed throughout the ventricle which will represent the end of the cardiac conduction system are called the:

Answer 33

Purkinje fibers

Question 34

Stimulation of the alpha and beta =

Answer 34

Heart, lungs, and blood vessels