Ctrl Alt Del -“Sorry Health, you are incorrect. For the purposes of ABG interpretation normal hco3 is 22 to 24. Sometimes you can use 26. No one uses 28, ever. If they do, they are wrong too.
See: Clinical Application of Blood Gases, Shapiro, Harrison, Cane, Templin. (THE final word on all things ABG related (even the mention of “the Shapiro book” inspires awe)”
“These are references I value somewhat more than Tyler Junior College.”
I do too! I just picked them because that’s what came out on Yahoo search.
As far as what you wrote, Tyler is right and the books you quoted are wrong.
Did you ever here of a website called Lab Tests Online?
This is the site of the AACC!
Here is their reference range:
“CO2
Age Conventional Units SI Units
Adult 23-29 mEq/L 23-29 mmol/L
>60 years 23-31 mEq/L 23-31 mmol/L
>90 years 20-29 mEq/L 20-29 mmol/L
from Tietz Textbook of Clinical Chemistry and Molecular Diagnostics. Burtis CA, Ashwood ER, Bruns DE, eds. 5th edition, St. Louis: Elsevier Saunders; 2011.”
There is a possibilty that your book(s) developed a different
reference range than Tietz’s.