Table 2.

IND Error Flags with E2 Results in Six Patients.

	Pt. A	Pt. B	Pt. C	Pt. D	Pt. E	Pt. F
Age, yrs	46	29	42	49	57	55
Ordered Test	E2	E2	E2	E2	E2	E2
E2 Undiluted	IND	IND	IND	IND	IND	IND
E2 1:2 in Sample DilA	IND	IND	<20 pg/mL	<20 pg/mL	IND	IND
Mass Spec Detection of E2	N/A	29.6 pg/mL	17.6 pg/mL	N/A	N/A	59.2 pg/mL
Interference Suspected	Yes	Yes	No	No	Yes	Yes

N/A, Not Applicable, Insufficient specimen for additional testing.