Bio Lab

Front 1

cyanosis

Back 1

lips and nail beds

Front 2

diaphoresis

Back 2

clammy sweaty skin

Front 3

hypoperfusion

Back 3

shock- inadequate circulation of blood (oxygen) to the cells

Front 4

factors affecting bp

Back 4

posture, excercise, cardiovascular diseases, diet, medications

Front 5

hypotension

Back 5

low bp

orthostatis and acute

Front 6

orthostatic hypotension

Back 6

temp. low bp and dizziness suddenly rising from a sitting or reclining position

Front 7

acute hypotension

Back 7

circulatory shock

Front 8

hypertension

Back 8

high bp

arterial pressure of 140.90 or higher

primary

Front 9

primary

Back 9

due to several risk factors

heredity, diet, obesity, age, stress, diabetes mellitus, and smoking

Front 10

elasticity

Back 10

healthy expands absorbing shock of systolic pressure

rigid artery cannot expand, so wall expereince higher pressure

Front 11

vessel diameter

Back 11

small diameter means more blood cells in contact with walls, more friction

greater resistance greater pressure

Front 12

3 factors affecting resistance

Back 12

blood vessel length adult vs. children

blood vesell diameter and flex. - atheroscleriosis, arteriosclerosis, meds

blood viscosity - preggos, meds, diet

Front 13

CHF

Back 13

cardiac output is low that blood circulation inadequate to meet tissue needs

c

Front 14

chf caused by

Back 14

atheroscleriosis

high blood pressure

multiple myocardial infarcts

Front 15

cardiac output

Back 15

heart rate and stroke volume change in opoopsite directions to maintain contant cardiac output ex.bleeding

heart rate x sv-co

volume of blood pumped outby left ventricle each min

Front 16

blood pressure

Back 16

cardiac output x peripheral resistance bp=co x pr

Front 17

peripheral resistance

Back 17

frictional force that opposes blood flow flow=dp/r

Front 18

vasodilation

Back 18

increase luminal space, decrease resistance, increase blood flow

Front 19

vasoconstriction

Back 19

decrease luminal space, increase resistance, decrease blood flow.

Front 20

sphygmonmanometer

Back 20

blood pressure cuff

Front 21

sounds of korotkoff

Back 21

characteristic sounds heard when measuring bp

Front 22

systolic pressure

Back 22

pressure in cuff equal to aterial pressure, begin to hear sound

Front 23

diastolic pressure

Back 23

pressure in cuff drop bewow minimal pressure in ventricular relaxation, sounds disapear

Front 24

blood pressure

Back 24

Force per unit area exerted on vessel wall by the blood.

Front 25

Systolic pressure

Back 25

Highest pressure in artery at peak ventricular contraction.

Front 26

Diastolic pressure

Back 26

Lowest pressure during ventricular relaxation.

Front 27

Pulse pressure

Back 27

Systolic – diastolic

Front 28

Dicrotic notch

Back 28

Brief backflow resulting in closing of semilunar valves

Front 29

Pulse

Back 29

results from alternating surges of pressure in artery occurring with each beat of left ventricle.

Average adult between 60-100.

Apical pulse counted from heart.

Front 30

Bradycardia

Back 30

slow heart rate

Front 31

Tachycardia:

Back 31

fast

Front 32

Pulse deficit

Back 32

lag time between apical and distal pulse

Front 33

Asystole

Back 33

flat line

Front 34

Ventricular contraction

Back 34

Pressure in ventricles rises

– AV valves close (lub)

– Ventricular pressure > arterial (aortic) pressure

– Semilunar valves open
– Ventricles contract
– Blood pumped out forcefully

– Late systole: ventricles relax, semilunar valves shut (dub)

Front 35

lub

Back 35

av valve closes

Front 36

dub

Back 36

semilunar shuts

Front 37

Diastole:

Back 37

Ventricular relaxation

– Low pressure in heart

– Blood flows passively into chambers

– AV valves open, semilunar valves closed

– Late diastole/atrial systole (atria contract)