Common Employer Questions
  • What drugs do we test for?
  • Do I test for marijuana with all the legalization of marijuana bills being voted on at the State level?
  • Do I need a Medical Review Officer (MRO)?
  • Can I just test “On-Site” with a point of collection device (POCT)?
  • Do I really need to perform confirmations on a “screened positive” test?


PAML’s drug testing panels have been custom made to meet the various industries served. No matter which area of testing is required, employment, regulated, for-cause, and random, we offer the test your company needs.

Workplace safety has never been more important for an effective workforce. Companies value an environment and culture that includes workplace safety. A drug testing program should reflect the needs of this culture through a policy, supervisor training and employee education. Employers have so many options when it comes to screening for at risk employees that sometimes it hard to determine which ways are the best and most effective.

Validity Testing

Since drug testing has becomes the standard to obtain a job, donors have become more creative in trying to “beat” the test. Every product you can think of is easily available through the internet or local “head shops”. From adulterants to synthetic urine, you don’t need much of an imagination to try to circumvent the employer from obtaining the true results. To minimize the efforts of those individuals trying to “Not Get Caught” we perform extensive testing on all workplace drug testing specimens to not only identify what drugs or medications are present, but also to identify the validity of the specimen submitted.

The National Laboratory Certification Program, which gives oversight to SAMHSA certification, has taken a strong and active role in specimen validity testing. Each laboratory must determine whether a donor has submitted a valid specimen by identifying the following:

  1. Adulterated: the specimen either contains a substance that is not a normal constituent of human urine or contains an endogenous substance at a concentration that is not a normal physiological concentration.
  2. Substituted: test results document that the specimen does not exhibit the characteristics of normal human urine (i.e., it could not have been provided by the donor). With the availability of synthetic urine that will pass every common validity test labs are challenged with identifying substituted urine.
  3. Dilute: specific gravity and creatinine values are below the lower limits for normal human urine, as established by the program. Donors may deliberately dilute specimens by consuming large amounts of water or other liquid or by adding liquid to their urine specimens.

We provide validity testing on every specimen tested. With the current amount of products available, and the new ones hitting the shelves each week, our Toxicology department is working hard to identify each donor as they try to beat their drug test. We are also one of just a few labs that go beyond the minimum testing for validity and looks at common constituents found in urine to identify normal human urine from synthetic urine.

Pathology Associates Medical Laboratories is accredited by the College of American Pathologists (CAP) and licensed by the State of Washington Department of Health as a Medical Test Site to comply with HCFA and CLIA ’88 rules. Our Toxicology Department is certified by both the Substance Abuse and Mental Health Service Administration (SAMHSA) and CAP- Forensic Urine Drug Testing (FUDT).

Legal CCF Form