Which of the following is NOT acceptable for waived tests?

Waived tests, as defined by the Clinical Laboratory Improvement Amendments (CLIA), are categorized as tests that can be performed with minimal complexity and have a low risk of erroneous results. The types of specimens typically accepted for waived testing include whole blood, plasma, and serum, which are commonly used in point-of-care testing due to their straightforward handling and processing requirements.

Cerebrospinal fluid, while it can be tested, is generally not included in the waived test category because it requires more complex handling and interpretation. This complexity increases the potential for errors and necessitates a higher level of laboratory oversight, which is not characteristic of waived tests.

Whole blood, plasma, and serum are all appropriate specimens for waived tests as they can often be collected and tested quickly and do not require specialized techniques for preparation. Thus, these specimens align with the criteria for waived testing, whereas cerebrospinal fluid does not, making it the correct response to identify as NOT acceptable for waived tests.