CSC Specimen Validity Testing & Adulteration Detection 2

Question 1

A urine specimen is reported with a pH of 2.5. What does this result indicate under federal drug testing guidelines?

Accepted Answer

The specimen has been adulterated

Answer

A pH below 3.0 is outside the physiological range for human urine and indicates the specimen has been chemically adulterated.

Question 2

What creatinine range identifies a dilute specimen in federal workplace drug testing?

Accepted Answer

Greater than or equal to 2 mg/dL and less than 20 mg/dL

Answer

A dilute specimen has a creatinine of at least 2 mg/dL but less than 20 mg/dL, indicating the specimen is physiologically produced but abnormally diluted.

Question 3

Pyridinium chlorochromate (PCC), sold under commercial names like 'UrineLuck,' is best classified as which type of adulterant?

Accepted Answer

Oxidizing agent

Answer

PCC is a chromium-based oxidizing adulterant that destroys drug metabolites like THC in the specimen, making them undetectable.

Question 4

What specific gravity range identifies a dilute urine specimen per federal guidelines?

Accepted Answer

Greater than 1.0010 and less than or equal to 1.0030

Answer

A dilute specimen has a specific gravity above 1.0010 (distinguishing it from substituted) but not exceeding 1.0030, reflecting abnormal dilution.

Question 5

What is the minimum urine volume required to complete a federal workplace drug test, including the split specimen?

Accepted Answer

30 mL

Answer

Federal guidelines require a minimum of 30 mL of urine—45 mL is the collection target—but 30 mL is the minimum needed to process both Bottle A (primary) and Bottle B (split).

(CSC) Certified Specimen Collector Practice Test

(CSC) Certified Specimen Collector Practice Test

CSC Specimen Validity Testing & Adulteration Detection 2