CLIA-waived tests are defined as:

• A. Tests that require specialized equipment and trained technicians.
• B. Tests that provide simple, unvarying results and require minimal judgment and interpretation.
• C. Tests that can only be performed in high-complexity laboratories.
• D. Tests that provide complex results and require significant interpretation.

Answer: (B)

CLIA-waived tests are designed to be simple to perform and have a very low risk of producing erroneous results. They provide straightforward, unvarying results and require only minimal judgment or interpretation from the person conducting the test. That simplification allows these tests to be used in a variety of settings outside traditional laboratories with only basic training. The other statements describe tests that are more complex or require specialized equipment and more interpretive effort, which is not characteristic of waived tests. So the best description is that these tests are simple, produce easy-to-interpret results, and require little professional judgment.