Question

Which of the following problems may affect the performance of both PO2 and PCO2 electrodes?

1. Electrolyte depletion
2. Protein contamination of the membrane
3. Holes in the membrane
4. Reference electrode malfunction

Answer 1

Both PO2 and PCO2 electrodes can be affected by electrolyte depletion, protein contamination, holes in the membrane, and reference electrode malfunction, all of which can impair electrode performance and measurement accuracy.

Step-by-step explanation:

The performance of both PO2 and PCO2 electrodes may be affected by a few common problems. These include electrolyte depletion, which can cause incorrect readings due to changes in the ionic strength of the electrolyte solution. Protein contamination of the membrane can lead to decreased permeability to gases and may cause inaccurate readings.

Holes in the membrane can also lead to incorrect measurements by allowing interference from other ions or molecules. Lastly, reference electrode malfunction can result in unstable and unreliable electrode potentials that affect accuracy.