I've readup through a few websites and they all say the same thing. Below 40mmol/l is normal, 40-60 mmol/l is borderline and above 60 are pretty much definate.
Your son falls into the normal catagory. There is only cause for extra testing when a person falls into the borderline catagory.
I'm not sure what you do from here, but another appointment with your son's doctor is the best next step. Sometimes the unknown is harder than the known. I hope that there is an answer for you soon, so you can move on to the next step to helping your son.
It must be so confusing for you, and if you still have any questions post them here, and I will try to help you.
Co-moderator in the: Cystic Fibrosis Forums
Diagnosed with: Cystic Fibrosis, Asthma, ABPA, Clinical Depression, Mild liver cirrohsis, mild osteopenia. Waiting for final diagnosis on Muscular Dystrophy type symptoms.
Medication: Creon 10,000, Flucloxacillin, Vitamins A,D+E, Serevent, Salbutamol, Paracetamol, Ondansetron, Nefopam, Ciprofloxacin, Ursodeoxycholic Acid, Saline neb/PEP system, Piriton, Mirtazapine, Diazepam, slow-sodium, Skandishake and Fresubin.
Had a Port-a-cath fitted on chest wall since Nov 05