Which of the following is necessary to assure comprehensive quality for helium dilution and nitrogen washout testing?
1) The accuracy and precision of the volume or flow-measuring device must be assured.
2) The accuracy and linearity of the gas analyzer must be verified.
3) Leak test must be acceptable while monitoring change in volume and gas concentrations over at least a minute.
4) Corrections for hemoglobin (Hb) and COHb must be included.
A)2, 3, and 4 only
B)2 and 3 only
C)1, 3, and 4 only
D)1, 2, and 3 only

Question

Quizplus · Accepted Answer

All of the options listed are necessary for comprehensive quality assurance for helium dilution and nitrogen washout testing. The accuracy and precision of the volume or flow-measuring device must be assured to ensure accurate measurement of gas volumes. The accuracy and linearity of the gas analyzer must be verified to ensure accurate measurement of gas concentrations. Leak test must be acceptable while monitoring change in volume and gas concentrations over at least a minute to ensure that there are no leaks in the system that could affect test results. Corrections for hemoglobin (Hb) and COHb must be included to account for any hemoglobin or carbon monoxide that is present in the patient's blood, which can affect the measurement of gas concentrations.

Which of the Following Is Necessary to Assure Comprehensive Quality