Cardiac Disorders

Question 1

Pulse Points

Answer 1

Temporal Artery (Front of ear)

Facial Artery (crossing edge of mandible/Jaw)

Carotid artery on Neck

Apical pulse at heart

Brachial artery- elbow

Radial artery-wrist

Femoral artery-Groan

Popliteal artery- behind knee

Dorsal pedis- foot

Question 2

Heart function

Answer 2

Pump blood to pulmonary (lungs) and systemic circulations (Rest of the body)

Question 3

Outer layer of heart

Answer 3

Pericardium

Question 4

Middle layer of heart

Answer 4

Myocardium (muscular)

Question 5

Inner layer of heart

Answer 5

Endocardium that forms four valves that separate chambers (purpose of valves assure blood flows in one direction)

Question 6

AV separates

Answer 6

Atrium from ventricle

Question 7

AV separation

Answer 7

R tricuspid

Left mitral/bicuspid

Question 8

Semilunar (tricuspid)

Answer 8

Aortic

Pulmonary

Question 9

Interventricular septum

Answer 9

Separates L and R sides of Heart (Middle of heart)- Infants born with a hole in the heart (Decreased O2 in blood so lethargic activity-tired)

Question 10

Conduction System

Answer 10

R

P. T
Atrial depolarization Ventricular
And contraction Q. S. Repolarization
Ventricular And relaxation
Depolarization
And contraction

Question 11

Conduction started at

Answer 11

SA (Sinoatrial) node -Pacemaker of heart

Question 12

Basic rate of SA node

Answer 12

70BPM

Question 13

What can modify SA rate?

Answer 13

ANS by the release of Epinephrine

Question 14

Causes a contraction

Answer 14

SA Node impulse spreading throughout atrium

Question 15

After SA node causes contraction by the impulse spreading throughout the atrium

Answer 15

The AV node is then Stimulated

Question 16

What does the AV node delay the signal for?

Answer 16

The ventricles to fill then stimulates through purkinje network of fibers. (Simultaneous contraction of (B) ventricles

Question 17

Electrical current recorded at ECG.

What does the P wave represent?

Answer 17

Atrial contraction

Question 18

What does the QRS represent?

Answer 18

Ventricular contraction

Question 19

What is the Third wave?

Answer 19

Recovery wave

Question 20

What do Arrhythmias show I the ECG?

Answer 20

Problems such as

• Infarction
• Systemic electrolyte imbalances

Question 21

Treatment of Cardiac Dysrhytmias

Answer 21

Cause needs to be determined and treated

Antidysrhythmic drugs are effective in many cases

Question 22

Treatment of Ca Dys

What requires a pacemaker?

Answer 22

SA nodal problems or total heart block

Question 23

Treatment of Ca Dysr

Why is a Defibrillator implanted?

Answer 23

Conversation of ventricular fibrillation (ineffective electrical activity at the moment)