PSA 0? What is this?

[Keeper70]

hello fellow warriors. My husband has taken a vacation/holiday from his Zytiga and Elligard shots., Both his MO and RO agreed, it’s been 4 months since and he’s feeling so much better

My question is, can you have a PSA of 0? No < than or 0. Anything , never seen this before, he started getting it tested closer to home so different asssay maybe? Thoughts ? TIA

[Justfor_]

Current analysers are networked to the lab's database, where from the reports are printed, emailed or uploaded to web pages without any human intervention. An error along this chain of data exchanges is possible. Once, I had a more than obvious such error in a DHT count, that speaking with the chief scientist of the lab proved to be a part of the entry time stamp of the blood sample to the analyser.

[Tall_Allen]

Interpret the 0 as his lab's way of saying that it is undetectable.

[fast_eddie]

Sonora Quest lab that I use considers a reading of less than 0.1 to be undetectable; considered 0.