Which of the Following Statements Is True Concerning the Operation

question 49

Multiple Choice

Which of the following statements is true concerning the operation of a transcutaneous carbon dioxide electrode?

• A) PtcCO₂ readings are slightly lower than the PaCO₂ value.
• B) Electrodes should be calibrated when they are repositioned.
• C) Heating the transcutaneous PCO₂ (PtcCO₂) to 43°C will adversely affect its operation.
• D) Before its use, the electrode should be calibrated to 20% and 40% CO₂.