PFT

Question 1

a test done before the ABG punter used to asses for collateral circulation

Answer 1

modified allens test

Question 2

steps of a modified allens test

Answer 2

1) have pt make a fist
2) obstruct both the radial and ulnar arteries by applying pressure with your thumb
3) have a patient open their hands and hand will turn white
4) release pressure from ulnar artery

• hand should pink up in 1-2 seconds
• if not collateral circulation isn’t good
• use another site

Question 3

never attempt to puncture an after on a patient with what t type of shunt?

Answer 3

dialysis shunt

Question 4

hazards of an ABG

Answer 4

blood vessel trauma, hematoma, arterial clot formation, arteriospasm, and infected puncture site

Question 5

heel sticks are used to obtain bag samples in infants this si called what?

Answer 5

capillary samples

Question 6

how long do you wrap the site for a cap stick?

Answer 6

5-7 mins

Question 7

what do you clean the heel with before chopstick?

Answer 7

alcohol

Question 8

what do you use for puncture of a cap stick?

Answer 8

lancet

Question 9

results of a cap still correlate with what?

Answer 9

ph and paco2

Question 10

for accurate readings from an Aline the transducer should be placed at the mid chest. if it is too low the readings will be ___ and if it is too high the readings will be falsely ____

Answer 10

falsely high, falsely low

Question 11

aline steps

Answer 11

1) withdrawal 3-5 ml of fluid from the catheter for the waste solution
2) attach the ABG syringe and collect sample
3) return the waster solution to the patient
4) close stopcock and flush the catheter tubing

Question 12

which electrode measures ph?

Answer 12

sanz

Question 13

which electrode measures po2?

Answer 13

clark

Question 14

which electrode measures pco2?

Answer 14

severinghause

Question 15

used to analyze data. it uses 2 standard deviation range and the values should remain with the 2 standard deviations of the mean

Answer 15

levey jennings charts

Question 16

all the values are within the two standard deviation range

Answer 16

in control

Question 17

only one value falls outside the tw o standard deviation range

Answer 17

random

Question 18

values are progressively increasing or decreasing but they all still fall within normal range

Answer 18

trend

Question 19

the plotted points are all within range, however the mean has shifted primarily towards one side

Answer 19

shift

Question 20

a thread that moves outside of the standard deviation range this indicates that the electrode needs to replaced or recalibrate

Answer 20

out of control

Question 21

cao2 range

Answer 21

17-20% vol

Question 22

cvo2 range

Answer 22

12-16%

Question 23

example of point of care testing

Answer 23

I stat

*done in 90 seconds

Question 24

if paco2 is in acceptable range what should your response be?

Answer 24

you should not put the patient on a ventilator or even change the vent settings

Question 25

if pt paco2 is greater than 45 what should you do?

Answer 25

initiate mechanical ventilation *if pt is already own vent you need to help vent

Question 26

if pt paco2 is less than 35 you should do what?

Answer 26

don't put patient on vent because pt is ventilating.

Question 27

normal ph of 7.35-7.45 is considered what?

Answer 27

compensated *also known as chronic

Question 28

if ph is below 7.35 this is considered what?

Answer 28

uncompensated *also known as acute

Question 29

how do you treat metabolic acidosis?

Answer 29

electrolytes

Question 30

occurs when all values are abnormal

Answer 30

parietal compensated

Question 31

how do you measure carbon dioxide poisoning and how do you treat it?

Answer 31

co-oxhemity treat with 100% o2 and hyperbaric chamber

Question 32

low hemoglobin below 12g

Answer 32

anemia

Question 33

how is anemia treated?

Answer 33

02 and blood transfusion

Question 34

describes the relation between the partial pressure of oxygen (x axis) and the other oxygen saturation (y axis)

Answer 34

oxygen hemoglobin dissociaton curve

Question 35

what do you do with an accidental needle stick injury

Answer 35

1) wash the wound with soap and water 2) if the soap isn't available use alcohol 3) notify your supervisor 4) go to doctor

Question 36

measures volumes and flows

Answer 36

spirometers

Question 37

measures flow

Answer 37

pneumotachometer

Question 38

measures flows and may display volume

Answer 38

wrights spirometer

Question 39

used to measure peak expiratory flow rate the its bed side

Answer 39

peak flow meter

Question 40

plethysmograph (body box) is based on what law?

Answer 40

boyles

Question 41

plethysmograph (body box) is used to measure what 2 things?

Answer 41

FRB and raw (airway resistance)

Question 42

flow calibration is done using what?

Answer 42

rotameter *accuracy is +3.5%

Question 43

the fuel cell that does not have a battery

Answer 43

galvanic fuel cell

Question 44

if the galvanic fuel cell is not working properly what do you do?

Answer 44

change the fuel cell

Question 45

if you are unable to calibrate the polarographic fuel cell what do you do?

Answer 45

change battery

Question 46

an instrument used to identify the presence and concentration of helium in a mixture of gases

Answer 46

helium analyzer

Question 47

in the nitrogen analyzer what tube measures the percentage?

Answer 47

geissler tube ionizer

Question 48

used to assess if the patient is ready to wean from the vent

Answer 48

MIP

Question 49

good test to assess resp muscle function in patients with guilllain barre and myasthenia graves

Answer 49

MIP

Question 50

helps evaluate if pt is able to cough effectily, maintain an open airway and clear secretion on their own

Answer 50

MEP

Question 51

measurements of MEP less than 40cmh20 indicates what?

Answer 51

pt can't clear airway

Question 52

what lung values add up to TLC

Answer 52

IRV+ERV+VT+RV

Question 53

what lung values add up to FRC

Answer 53

IRV+RV

Question 54

what lung values add up to IC

Answer 54

- IRV+VT

Question 55

what lung values add up to VC

Answer 55

- IRV+VT+ERV