Which option best reflects a major regulatory guideline for QA/QC in drug testing labs?

Which option best reflects a major regulatory guideline for QA/QC in drug testing labs?

• A. CAP accreditation guidelines
• B. FDA 21 CFR Part 11
• C. CLIA regulations and CAP accreditation guidelines
• D. ISO 17025

Answer: (C)

Quality assurance and quality control in drug testing laboratories are governed in the United States by CLIA regulations, which set the mandatory standards for QA/QC programs, method validation, personnel qualifications, proficiency testing, calibration, and record-keeping. CAP accreditation guidelines are widely used because they align closely with CLIA and provide a detailed, practical framework for maintaining quality across testing processes, including method verification, ongoing proficiency testing, instrument maintenance, and thorough documentation. Together, they form the major regulatory and oversight structure that clinical drug-testing labs rely on to ensure accurate and reliable results. CAP alone is voluntary, FDA Part 11 deals with electronic records and signatures rather than the full QA/QC program, and ISO 17025 is an international standard for general lab competence but does not represent the primary regulatory framework for US clinical drug testing.

Quality assurance and quality control in drug testing laboratories are governed in the United States by CLIA regulations, which set the mandatory standards for QA/QC programs, method validation, personnel qualifications, proficiency testing, calibration, and record-keeping. CAP accreditation guidelines are widely used because they align closely with CLIA and provide a detailed, practical framework for maintaining quality across testing processes, including method verification, ongoing proficiency testing, instrument maintenance, and thorough documentation. Together, they form the major regulatory and oversight structure that clinical drug-testing labs rely on to ensure accurate and reliable results. CAP alone is voluntary, FDA Part 11 deals with electronic records and signatures rather than the full QA/QC program, and ISO 17025 is an international standard for general lab competence but does not represent the primary regulatory framework for US clinical drug testing.