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diagnosis of nodular thyroid disease (NTD) while other guidelines assume a neutral or a contrary position regarding the use of sCT for NTD due to false-positive results, cost-effectiveness, and large reference range of assays [ 2 , 3 , 4 , 5 , 6 , 7 , 8
Institute for Community Medicine, Greifswald, Germany
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Introduction Both thyroid disease and obesity are common disorders in the general population. Several studies have found a prevalence dependent on selected reference ranges from 0.1 to 2% for hypothyroidism [elevated thyroid
Department of Paediatrics, Southport and Ormskirk NHS Trust, Ormskirk, United Kingdom
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21 Mikołajczak A, Borszewska-Kornacka MK, Bokiniec R: Sonographic reference ranges for the thyroid gland in euthyroid term newborns. Am J Perinatol 2015; 32: 1257–1262. 10.1055/s-0035-1552937 26023906 22 Mahajan SD, Aalinkeel R, Singh S
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5th or 10th percentile of the reference range for FT4 associated with normal TSH [ 3 , 4 ]. There is, however, the question of threshold for normal values, linked in part to the lack of laboratory reference ranges in pregnancy. The association of
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remission and relapse groups on admission. Reference ranges Remission group ( n = 39) Relapse group ( n = 40) P ALT (U/L) 5–40 25.00 (19.00–37.00) 28.50 (21.75–37.50) 0.50 AST (U/L) 5–40 25.00 (20
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dosage that ensures maternal serum free thyroxine (FT4) levels at or moderately above the upper limit of the reference range is reported to be appropriate for fetal euthyroid status [ 2 ]. This recommendation was incorporated into the 2017 American
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certain extent also the rather wide interindividual variation observed in orbital volumes (OV range 20.7-34.5 cm 3 , FV range 9.2-25.7 cm 3 , MV range 2.47-5.42 cm 3 ). Reference values, however, had to be age specific. Reference intervals of FV/OV and MV
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Heart Center Bad Neustadt, Clinic for Interventional Electrophysiology, Bad Neustadt an der Saale, Germany
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FT 4 outside their respective reference ranges; (7) an insufficient amount of preoperative serum aliquots, and (8) any antiarrhythmic medication pre- or perioperatively with the exception of β-blocking agents and verapamil. All patients had received
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been on L-T4 for a minimum of 4 months and had normal serum TSH values (local reference ranges were 0.1–5.5 or 0.2–6.0 mU/l) were compared with 535 age- and sex-matched controls [ 11 ]. Two questionnaires were used: the General Health Questionnaire (GHQ
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manufacturer’s instructions. The reference ranges in humans for fT4 and TBII are 0.9–1.8 ng/mL and 0.1–40.0 IU/L, respectively, while the cut-off for the bridge binding TBII immunoassay is 0.55 IU/L. Neat serum samples (approx. 50 µL) were used to measure fT4