Test 2: 24 monitoring O2

Question 1

— changes color when bound to O2

Answer 1

hemoglobin

Question 2

benifits of pulseoximetry

Answer 2

continuous
non invasive
easy to use

Question 3

cons of pulse ox

Answer 3

sensitive to movement
does work if too pigmented
if animal too anemic not accurate

Question 4

how does pulseox work

Answer 4

sends out two wavelengths of light (bright red and dark red), then senor measures light that made it through → gives ratio of oxygenated and unoxygenated blood

can see pulsing of arteries and measures the oxygenation in the pulsating part to give you measure of O2 saturation in ateries

Question 5

if HR on EKG and HR on pulseox are different what will happen to O2

Answer 5

will be falsely low- measuring O2 not in arteries

Question 6

pulseox

Answer 6

vasocontriction
shock or xylazine

can not see pulse

Question 7

how does blood gas machine measure SpO2

Answer 7

it calculates it from the PaO2

uses sigmoid curve- can shift and change with species

can be shifted from temperature