If the OP doesn’t know, would the ex-husband? Have the social worker drop some gobbledygook about the employer testing for steroids by checking hormone levels, and that his should match those of a grown man. Unless she is against lying, like so many spoilsports. Sigh.
Teeny tiny nitpick, it’s probably a test for Marijuana, Cocaine, Amphetamines, Opiate/Opioid and Benzos.
Thanks for the giggle.
I once taught a group of veterinary technicians. We were doing urinalysis, with each person looking at his/her own urine. One young lady couldn’t figure out what she was seeing in the sediment of her sample. I looked, and explained that they were sperm. She couldn’t understand how she could have sperm present in her sample, since she was a girl. After repeated gentle attempts to explain, a light bulb lit up over her head and she got it.
Eeeeew! Did the woman not wipe? I can’t imagine having enough sperm lingering on my vuvla to, hours later, present “sediment” in a urine sample.
Or do you think she had just been in the broom closet with a classmate? Were they still swimmin’? :eek:
Would love to hear the explanation that she didn’t get. Did you make gestures with your hands? lol
Maybe the Ex should suggest a hair follicle drug screening.
We did not share the sorta student/teacher relationship that would allow me to delve any deeper than I did. And, no, they were not motile. :eek:
That took some balls to explain. 
I’m not googling right now for a cite, but there is a “drip back” effect that can happen up to several hours after intercourse wherein bodily fluids that had worked their way further in are released.
There was a study done to determine the number/nature of “return” sperm and how it related to amount of time between intercourse and the time of drip back. I remember feeling sorry for the women in the study having to collect and log the info.
And back on topic, if a workplace is sufficiently concerned about possible tampering, the urine tests can be done less privately. The workers comp doctor’s office that my employer uses has no sink in the restroom (there is one immediately outside the door), and a sign instructing those being tested that they are not to flush. Collections are supervised, to a degree. (I have not been subjected to this variety of testing, instead being subject to random hair clipping screenings, which I assume are even harder to fake but probably more expensive that a pee dip.)