Scientist Certifying-Negative

Quest Diagnostics   •  

Norristown, PA

5 - 7 years

Posted 178 days ago

This job is no longer available.

To describe the responsibilities of the Negative Certifying Scientist within the Forensic Toxicology Drug Testing Laboratory. This position reports to the Certifying Scientist Supervisor and Responsible Person.  A Negative Certifying Scientist reviews analytical data to ensure accuracy, completeness and defensibility of testing results and reporting documents prior to release of a result report. 


1) Certify negative and rejected drug testing results according to the Laboratory’s Standard Operating Procedure (SOP) Manual. 
2) Ensure that all test results reported by the laboratory are accurate and legally defensible.
3) Describe the standard drug testing procedures from point of collection to negative certification in a court of law.
4) Interact on a limited basis with clients, medical review officers, call center representatives and sales staff in a professional manner in order to address questions pertaining to the drug testing process.
5) Interact with laboratory inspectors to demonstrate a detailed working knowledge of the lab SOPS, QC practices, analytical procedures, test theory, reporting procedures, corrective actions and applicable regulations pertaining to drug screening. 
6) Maintain a working knowledge of the accessioning procedures and protocols to ensure proper specimen and chain of custody handling.
7) Maintain a working knowledge of the theory and practice of initial test methods used in the laboratory.
8) Have a thorough understanding of all laboratory:
a) quality control practices and procedures.
b) data review processes 
c) procedures for interpretation of test results
d) protocols for reporting results.
9) Provide appropriate feedback to the Supervisor and Responsible Person in order to assist in maintaining an accurate SOP.
10) Maintain a thorough understanding of all federal, state and other regulatory requirements as they pertain to applicable aspects of forensic drug testing.
11) Take proper remedial action in response to test systems being out of control limits or detecting aberrant test or quality control results.
12) Function as a technical resource for department personnel in accessioning and screening areas.
13) Maintaining a working knowledge of all instrumentation associated with the initial test  procedures in order to assist in troubleshooting measures.
14) Comply with all safety and regulatory requirements as defined and applicable.
15) Follow work schedule as defined by the Certifying Scientist Supervisor.
16) Actively participate in department meetings by providing constructive feedback.
17) Maintain proficiency in screening test area.
18) Other duties as assigned by the Certifying Scientist Supervisor and Responsible Person


1. A bachelor’s degree in the chemical or biological sciences, medical technology, or equivalent.
2. Six years experience in forensic analytical toxicology or equivalent.
3. Knowledge of the methods and procedures used by the laboratory that are relevant to the results that the individual certifies.
4. Training and experience in reviewing and reporting test results, maintenance of chain of custody, and understanding proper remedial action in response to the problems that may arise.
5.   Completion of an in-house Certifying Scientist training program and approval by the Laboratory Director to perform independent functions.

All requirements are subject to possible modifications to reasonably accommodate individuals with disabilities. Quest Diagnostics is an Equal Opportunity Employer: Women / Minorities / Veterans / Disabled / Sexual Orientation / Gender Identity.