Certified Respiratory Therapist Practice Exam

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Prepare for the Certified Respiratory Therapist Exam with our engaging quiz, complete with multiple-choice questions and detailed explanations. Boost your confidence and knowledge before test day!

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To confirm the validity of blood gas analyzer results, which action should be performed?

Calibration of the device
Control media calibration verification
Routine cleaning of the analyzer
Sample retesting with fresh control

The correct answer is: Control media calibration verification

The correct approach to confirm the validity of blood gas analyzer results involves the verification of control media calibration. Control media serve as reference values that are essential for ensuring that the analyzer is functioning correctly and providing accurate results. By running control samples with known values, a respiratory therapist can assess whether the analyzer is performing within acceptable limits. This process not only checks the accuracy but also helps identify any potential issues with the equipment or the reagents being used. Hence, control media calibration verification is a necessary step to validate the results obtained from the analyzer. While other actions such as calibration of the device and sample retesting are important for overall quality control, they do not specifically address the immediate need to confirm the accuracy of results from the current blood gas analysis. Routine cleaning ensures the analyzer operates well but does not directly relate to validating the specific results in question. Therefore, verifying control media calibration is the most direct method for establishing the validity of blood gas analyzer outcomes.