What should the therapist do when blood gas results greatly differ from historical values?

When blood gas results differ significantly from historical values, it is important to confirm the accuracy of those results before taking further actions. Repeating the analysis with the same blood sample and the same analyzer helps to rule out any errors that may have occurred during the initial testing process, such as sample handling issues or equipment malfunction. This verification step is crucial to ensure that any treatment decisions are based on reliable data.

By doing this, the therapist maintains a systematic approach to patient care and ensures that any abnormal results are true reflections of the patient’s condition. If the repeated results still show discrepancies, further steps can then be taken, including evaluating for potential issues with calibration or the need to consult with the medical team.