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Alternative Proficiency Testing

Fulfill Your CLIA Requirements

Alternative Proficiency Testing (ALT PT) fulfills CLIA requirements for alternative assessment of non-commercially available analytes. Lighthouse Lab Services has an extensive menu of hard-to-find analytes for your laboratory.

How We Can Help:

CLIA requires a biannual assessment of laboratory testing accuracy and reliability. Alternative Proficiency Testing (also referred to as ALT PT) is the determination of a lab’s testing performance for analytes when a commercial PT program is not readily available. For non-commercially available analytes, most labs will fulfill this requirement via split-sample analysis/alternative assessment. Once results are obtained, it is up to the laboratory to analyze this data and decide if their testing performance is acceptable.

By enrolling in the ALT PT program provided by Lighthouse Lab Services, these tasks are no longer a burden on the laboratory.

Proficiency Testing Programs of Interest for 2021


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Alternative Proficiency Testing (urine)


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Antipsychotics panel (urine)


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SARS-CoV2 (saliva)


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Ethanol (urine)

We Will Provide You With:

ALT PT samples will be provided by LLS twice a year. Within our network of laboratories, we are able to identify the correct comparison group, which typically consists of more than one laboratory. Finally, data analysis is performed by LLS: the laboratory will receive an ALT PT evaluation that can be reviewed by the Lab Director/designee and testing personnel. 

Quality Management Services

ALT PT is a part of our larger Quality Management Services, but can also be an individual service based on test menu and method compatibility.

Customized Solutions

Looking for a customized consulting approach? Our team can partner with you in a variety of ways to help start, run, and grow your lab successfully.

Interested in our Services? Have a Question?

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