quality control/calibrations

Question 1

helium dilution calibration

Answer 1

2 or 3-point done before every test
point1= 0% Helium
point2/3= known concentrations of Helium

Question 2

nitrogen washout calibration

Answer 2

2-point once every 6 months
point1= 78% N2 (room air)
point2= 0% nitrogen

Question 3

sanz electrode

Answer 3

pH

Question 3

severinghaus electrode

Answer 3

PCO2

Question 4

clark electrode

Answer 4

PO2

Question 5

partial pressure of end tidal CO2

Answer 5

PetCO2 significantly lower than PCO2 indicates

1. embolus
2. decreased cardiac output
3. cardiac arrest

Question 6

PetCO2 calibration

capnography

Answer 6

requires two concentrations

1. zero calibration on room air
2. 5% CO2

Question 7

blood gas 1-point calibration

Answer 7

1. adjust analyzer to single standard

2. before sample analysis or every 30 minstrels

Question 8

blood gas 2-point

Answer 8

1. adjust analyzer to two standards

2. every 2-8 hrs

Question 9

pH calibration

Answer 9

one-point: 7.38

two-point: 7.38 & 6.84

Question 10

CO2 calibration

Answer 10

one-point: 5%

two-point: 5% and 10%

Question 11

02 calibration

Answer 11

one-point: 0%

two-point: 0% & 10% 12%

Question 12

clark electrode O2 analyzer

Answer 12

1. requires batteries

2. fast response

Question 13

galvanic O2 analyzer

Answer 13

1. uses a fuel cell

2. slow response

Question 14

O2 analyzers calibration

Answer 14

2-point on 100% O2 and room air(21%)