Reading Test Three

Question 1

Tachycardia?

Answer 1

Faster than normal heart beat caused by an increase in temp, sympathetic nervous system, or toxic conditions of the heart

Question 2

Bradycardia?

Answer 2

Slow heart rate less than 60 BPM. Well trained athletes can have slow beat or Vagal stimulation

Question 3

Sinoatrial Block?

Answer 3

SA node is blocked from atrium and no P wave occurs. AV node takes over as pacemaker

Question 4

What causes AV block?

Answer 4

AV bundle or node ischemia
Compression of AV bundle by scars
Inflammation of AV bundle or node
Extreme vagal stimulation

Question 5

Primary heart block?

Answer 5

Increased P Q interval

Question 6

Secondary heart block?

Answer 6

Conduuction through AV node is slowed enough to increase PR interval and not cause a QRS complex. Dropped beat.

Question 7

Third degree heart block?

Answer 7

Dissociation of P and QRS complex
fainting spells
stokes adams syndrome

Question 8

Premature Atrial contraction?

Answer 8

PR interval is shortened and a pause occurs

Question 9

What type of contraction can lead to V. Fib?

Answer 9

Premature ventricular contractions

Question 10

Most serious arrythmia?

Answer 10

V. Fib, uncoordinated contractions of the ventricles resulting in no blood being pumped out.
Strong high voltages can throw back into sinus rythm

Question 11

What happens to blood flow into ventricle during A. fib?

Answer 11

Blood flows passively into the ventricle, the amount of blood is decreased by 20-30%.

Question 12

What causes atrial flutter?

Answer 12

Circus movements

Question 13

Vasomotion?

Answer 13

Intermittenet contraction of metarterioles and precapillary sphincters, Oxygen in the tissues is an important regulator

Question 14

What causes negative interstitial fluid pressure?

Answer 14

Pumping of the lymphatic system, when fluid enters terminal lymphatic capillaries lymph vessel walls automatically contract to pump fluid into blood circulation

Question 15

Lymph from the right head neck and thorax enters where?

Answer 15

The right lymph duct

Question 16

Lymph from the left side of head arm chest lower body enters where?

Answer 16

Thoracic duct

Question 17

Increase in volume pressure and lymph flow favors movement of lymph into or out of interstitium?

Answer 17

Into

Question 18

What two factors determine lymph flow?

Answer 18

interstitial fluid pressure and activity of lymphatic pumps

Question 19

Left coronary artery supplies the ___ and ___ lateral portions of the ___.

Answer 19

Anterior left LV

Question 20

Right coronary artery supplies the __ and the __ part of __.

Answer 20

Right ventricle, Posterior, Left ventricle

Question 21

What happens to coronary capillary blood flow in LV during systole?

Answer 21

It falls because they are being squeezed by the contracting muscle cutting off blow flow

Question 22

What happens during diastole to coronary capillaries

Answer 22

They have rapid blood flow because the muscle is no longer obstructing flow

Question 23

What causes Ischemic heart disease?

Answer 23

Atherosclerosis

Question 24

What is the most common type of heart disease and what causes it?

Answer 24

Ischemic heart disease caused from insufficient coronary blood flow

Question 25

What causes death after a MI?

Answer 25

Decreased Cardiac output
Pooling of blood in pulmonary vessels
Fibrilation
Rupturing

Question 26

Vfib is most likely to occur after an MI at what intervals?

Answer 26

First ten minutes after MI and One hour after the first ten minutes