Which blood gas analyzer electrode uses a separate reference ...

[Cooldude101]

Which blood gas analyzer electrode uses a separate reference electrode?
 
  a. O2
  b. pH
  c. Clark
  d. HCO3

Question 2

What media are used to calibrate a blood gas analyzer's gas electrodes?
 
  a. Standard pH buffer solutions
  b. Bloodlike control media
  c. Precision mixtures of O2 and CO2
  d. Tonometered human blood samples

[FergA]

Answer to Question 1

ANS: B
The reference half-cell produces a constant potential, regardless of sample pH. The difference in potential between the two electrodes is proportional to the H+ concentration of the sample, which is displayed on a voltmeter calibrated in pH units.

Answer to Question 2

ANS: C
In most units, the media used to calibrate the gas electrodes are precision mixtures of oxygen and carbon dioxide.

[Cooldude101]

TYSM

[dantucker]

Excellent