Circannual and Within-Individual Variation of Thyroid Function Tests in Normal Subjects
نویسندگان
چکیده
منابع مشابه
Normal Thyroid Function Tests Following Discontinuation of Levothyroxine in Hypothyroid Iodine Deficient Individuals
SUMMARY In 28 school children with primary hypothyroidism due to iodine deficiency, 100 µg levothyroxine (L-T4} was administered for nine weeks and resulted in normalization of serum T4, T3, and TSH. Five months after withdrawal of L-T 4 , thyroid function was normal in the majority of subjects. Serum T4 was 8.6±2.3 µg/dl ; T3, 156±2.3 ng/dl; and TSH, 6.9± 12.7 µU/ml. Only one subjects showed ...
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A 41-year-old woman had a 1to 2-cm asymptomatic thyroid mass, which had been monitored by an endocrinologist for several years with serial sonography. Noting that it had enlarged in the face of normal thyroid function tests, the endocrinologist ordered a fine-needle aspiration biopsy, which showed a cellular follicular lesion. Although some of the nuclear changes seen in papillary carcinoma wer...
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IN TESTS OF PLATELET FUNCTION IN NORMAL SUBJECTS, THE FOLLOWING RELATIONSHIPS WERE FOUND: the greater the platelet adhesiveness the less the ability to disaggregate after challenge with adenosine diphosphate (ADP), and the greater the disaggregation after ADP, the longer the clotting time in the test for platelet factor 3 availability. Such correlations were disturbed in uraemic patients.
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Introduction: Aging may lead to increase or decrease in the level of total cholesterol, LDL and HDL. Furthermore, prevalence of thyroid dysfunctions increase with age in iodine sufficient area. The present study is designed to evaluate lipid profile and thyroid function tests in a group of elderly population in Hormozgan province. Methods: In this cross-sectional study, 60 (19 females and 41 ...
متن کاملBiologic variation is important for interpretation of thyroid function tests.
Large variations exist in thyrotropin (TSH) and thyroid hormones in serum. The components of variation include preanalytical, analytical, and biologic variation. This is divided into between- and within-individual variation. The latter consists of circadian and seasonal differences although there are indicators of a genetically determined starting point. The ratio of within- to between-individu...
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ژورنال
عنوان ژورنال: Annals of Clinical Biochemistry: International Journal of Laboratory Medicine
سال: 1985
ISSN: 0004-5632,1758-1001
DOI: 10.1177/000456328502200407