Maybe different labs have different tests. Like I say I still do not understand. I was given the usual sputum sample testing cup to test what bacteria was in my lungs and nothing was identified but I was treated with Augmentin and it cleared things up. But a year or so later when second course of Augmentin was tried and failed, I suggested Pseudomonas to my Pulmo and said he would test for it. It was a different test in that it required the sample be driven up on ice that day. The previous test was mailed in as I recall. Anyway this is the U of IA hospitals and clinics and I assume they have very good labs and testing. It is identified as a CF test. I find it all confusing for sure. So anyway I am not sure it is tested in standard cultures. Best to ask!