T4, Total (by CMIA) 甲狀腺素	R054
	Print View

Specimen Required 3 mL Pl (1 mL serum)	Schedule Monday-Saturday
Specimen Stability Ambient: 24 hr Refrigerated: 8 days Frozen: 1 month
Reference Interval: Conv. Units Euthyroid, non-pregnant (95 %ile) 4.8 - 11.7 ug/dL Pregnancy (95 %ile): First trimester 5.5 - 13.3 ug/dL Second trimester 7.3 - 14.2 ug/dL Third trimester 7.3 - 15.1 ug/dL
Reference Interval: S.I. Units Euthyroid, non-pregnant (95 %ile) 61.8 - 150.6 nmol/L Pregnancy (95 %ile): First trimester 71.3 - 171.3 nmol/L Second trimester 94.3 - 183.3 nmol/L Third trimester 93.9 - 194.0 nmol/L
Reference Notes and Guidelines Click here for more details. Reference Notes and Guidelines 1. T Uptake and FT4I tests are recommended to compensate for the increased or decreased thyroid hormone binding proteins that affect the T4 result ( e.g. pregnancy, drugs). 2. Flagging is based on euthyroid ranges only. Source: Pregnancy reference ranges are from Stricker et al, AACC, July 2006.

Back to List