For geological purposes, this is taken as one year.
When they die no new carbon-14 is taken in by the dead organism.
Only rarely does a creationist actually find an incorrect radiometric result (Austin 1996; Rugg and Austin 1998) that has not already been revealed and discussed in the scientific literature.
The creationist approach of focusing on examples where radiometric dating yields incorrect results is a curious one for two reasons.
There appears to be a fundamental conflict between the Bible and the reported ages given by radioisotope dating.
Since God is the Creator of all things (including science), and His Word is true (“), the true age of the earth must agree with His Word.