Class 7 - Perfusion

Question 1

Cardiac Output

Answer 1

HR x SV; amount of blood your heart pumps each minute

Question 2

Systole

Answer 2

contraction of the ventricles

Question 3

Preload

Answer 3

amount of ventricular stretch at the end of diastole

Question 4

Afterload

Answer 4

amount of pressure the heart needs to eject the blood during ventricular contraction

Question 5

Atrial Kick

Answer 5

increased force generated by the atria during contraction

Question 6

Diastole

Answer 6

heart relaxed; chambers fill with blood

Question 7

Hypotension

Answer 7

low BP

Question 8

Hypertension

Answer 8

high BP

Question 9

Primary Hypertension

Answer 9

high BP that has no cause

Question 10

Secondary Hypertension

Answer 10

high BP that has a cause

Question 11

RAAS

Answer 11

renin-angiotensin activating system; increases BP

Question 12

Hypertensive crisis

Answer 12

sudden, severe increase of DBP to >120-130 mmHg

Question 13

ACE Inhibitors

Answer 13

act to inhibit the angiotensin converting enzyme of the RAAS; can’t convert angiotensin 1 to angiotensin 2

Question 14

Palpitations

Answer 14

racing heart

Question 15

Baroreceptors

Answer 15

pressure receptors

Question 16

Mean Arterial Pressure

Answer 16

average BP; **know calculation

Question 17

Central Perfusion

Answer 17

flowing of blood; focused on the heart

Question 18

cyanosis

Answer 18

blue colour of skin; seen in mouth, lips, etc. in central perfusion impairment

Question 19

Pallor

Answer 19

pale skin

Question 20

Capillary Refill

Answer 20

return to colour after pressure has been applied to a capillary bed

Question 21

Widening Pulse Pressure

Answer 21

in isolated systolic HTN; SBP minus DBP

Question 22

ADH

Answer 22

hormone produced by the pituitary gland; increases BP

Question 23

Atrial Natriuretic Peptide

Answer 23

released with increased preload; the body increases sodium excretion & increases water loss

Question 24

norepinephrine

Answer 24

SNS; increases HR, increases BP

Question 25

epinephrine

Answer 25

SNS; increases HR, increases BP

Question 26

Beta 1 receptors

Answer 26

heart; normal functioning of the SNS

Question 27

Beta 2 Receptors

Answer 27

lungs

Question 28

Adrenergic receptors

Answer 28

bind epinephrine and norepinephrine