County Health Departments
The OSDH Public Health Laboratory (PHL) is responsible for the technical oversight of laboratory operations at 95 County Health Departments (CHDs) located throughout Oklahoma. By law (Clinical Laboratory Improvement Act of ’88 or CLIA), all laboratories performing clinical testing must be registered with the Centers for Medicare and Medicaid Services (CMS). All CHD laboratories in Oklahoma operate under a single, multi-site CLIA Certificate (ID#37D0888677), which is held by the Director of the OSDH PHL. This certificate should be displayed prominently at each CHD testing facility. CLIA certificates expire every 2 years.
The OSDH PHL holds an independent CLIA Certificate of Accreditation (ID#37D0656594), through the College of American Pathologists (ID#2571901), for laboratory testing that is performed at the central OSDH facility in Oklahoma City. Referral laboratories will also have their own CLIA certificates. A current (non-expired) copy of the CLIA certificate of the referral laboratory should be obtained by a CHD before specimens are referred for testing. This confirms regulatory compliance of the referral laboratory at the time of referral. Note: this only needs to be done one time per referral laboratory but since CLIA certificates expire every 2 years, this needs to be repeated when their CLIA certificate expires.
As mandated by CLIA, laboratories conducting moderate or high complexity testing are required to participate in proficiency testing (PT) for certain tests they perform. The only moderately complexity testing performed at CHDs is the Wet Prep procedure. All other testing is waived and by regulation does not require PT; however, PT can be use to assure quality of such testing. The OSDH PHL sends 3 PT challenges per year, in the form of slide sets, to all CHD personnel who perform wet preps. A pass of 80% is set for each challenge. Personnel with 2 failed PT challenges in a row must participate in remedial wet prep training.
As mandated by CLIA, each CHD laboratory is subject to Quality Assurance Review to evaluate and document laboratory performance. Technical staff in the Field Laboratory Operations (FLO) section at the PHL help assure optimum quality of laboratory services at CHDs by conducting periodic announced, on-site quality assessments, including equipment performance, record-keeping, and personnel training. These assessments are conducted by FLO personnel using a Quality Assessment Checklist. On the basis of these assessments, FLO may recommend changing current laboratory practices or may provide additional in-service training for CHD personnel, as deemed necessary.
Good Laboratory Practices Manual
The Good Laboratory Practices Manual is written specifically for CHD laboratories and contains:
• test procedures (step-by-step)
• standard laboratory practices designed to meet CLIA requirements.
In addition, FLO personnel provide technical consultation for all test procedures conducted by CHD laboratories.
CLIA Certificate (ID#37D0888677)
CLIA Certificate of Accreditation (ID#37D0656594)
Quality Assessment Checklist
Good Laboratory Practices Manual
Field Laboratory Operations Technical Staff
Leslie Billetter: 405-406-4399 (Blackberry)
Louis Susanto: 405-202-1318 (Blackberry)
Hours of Operation
8am-5pm, Monday - Friday
1000 NE 10th Street
Oklahoma City, OK 73117-1299
Central Office Phone: 405-271-5070
24/7 Emergency: 405-406-3511 or 405-271-7457