A procedure with minimal complexity, instrumentation, and personnel requirements so that results can be quickly determined is categorized as:

• A. Waived test
• B. Nonwaived test
• C. Definitive test
• D. Presumptive test

Answer: (D)

Tests are categorized by how complex they are to perform and the level of training required. Procedures with minimal complexity, little instrumentation, and personnel needs, yet producing results quickly, are designed to be waived tests under CLIA. This means they are simple, carry low risk of erroneous results, and can be performed in a variety of settings with minimal oversight, allowing rapid decision-making at the point of care. A presumptive test, while it can provide a fast screening indication, is typically considered a screening step rather than a regulatory category defining complexity and risk. Therefore, the description given aligns with the concept of a waived test in standard clinical chemistry practice.