Which of the following are the three CLIA regulatory categories?

The three CLIA regulatory categories are waived, moderate complexity, and high complexity. This classification system is set forth by the Clinical Laboratory Improvement Amendments (CLIA) as a way to categorize laboratory tests based on their complexity and the level of training required to perform them.

Waived tests are those that pose the least risk to patients if performed incorrectly and typically can be done safely with minimal training. Moderate complexity tests require more training and skill, involving more intricate procedures or evaluations. High complexity tests are the most complex and require advanced training, expertise, and often extensive equipment and protocols. This classification is essential for ensuring the quality and reliability of laboratory testing and helps in the regulation and oversight of laboratory practices.

The other options are not aligned with CLIA's categories, as they either refer to different aspects of healthcare or are not recognized as regulatory classifications under CLIA. For instance, terms like basic, intermediate, and advanced might suggest levels of care but do not specifically relate to laboratory testing complexity. Similarly, classifications such as simple, complex, and hazardous, or routine, urgent, and elective, focus on different dimensions of medical practice and patient care rather than the complexity of laboratory testing, which is what CLIA seeks to regulate.