Sure the books say PH 7.35 to 7.45...and they say C02 35-45..and P02 80-100...too. But some folks normal doesn't fit into those spreads.
I can give you plenty of examples...REAL cases. Real people...not from some book you read.
My whole point was you said "always" or something like it...when I first replied. A rule of mine....never say never...and never say always! : )
No worries.......