Table 5.

Results obtained with the TSH Beckman Coulter Access® assay, both in the normal format (with the reagent kit provided by the manufacturer) and with the ‘nonsense’ in-house format (see text). Patient case is the patient described in the text. Other patients studied are identified by laboratory ID number.

Sample	Normal TSH assay (µU/mL)	‘Nonsense’ TSH assay (µU/mL)
QC low level	0.65	<0.003
QC high level	25.6	0.12
Patient case	7.49	8.38
Patient 1134320	3.60	0.01
Patient 6461018	1.12	<0.003