I'm new here but:

It is very hard to tell if someone will pass a test without taking weight/metabolism/etc into account. People on this forum will tell you everyone varies and to do a search for "half life."

I would say he will not pass. Tell him to take a home test. From what I understand, all home tests have the 50 ng/ml cutoff, same as the test at the clinic. If that turns out positive (I think) they send it off to another test that is 15 ng/ml.

Read the stickys: "The truth about drug tests", "Subbing" and "Watering." He might be able to pass that way.

Again, I'm new here so hopefully someone else will chime in.