The sex of an individual is typically assigned at birth based on the appearance of the external genitalia. Chromosomal testing can determine whether a person is biologically male (1 X chromosome and 1 ...
BACKGROUND: Prescribing of levothyroxine and rates of thyroid function testing may be sensitive to minor changes in the upper limit of the reference range for thyroid-stimulating hormone (TSH) that ...
Estradiol: 2-14 ng/dL (female, follicular); 2-16 ng/dL (female, luteal); <3.5 ng/dL (postmenopausal); 1.5-5 ng/dL (male) ...
Labs calculate normal by testing everyone who walks through the door, including patients with undiagnosed conditions and chronic diseases. The middle 95 percent becomes the reference range, whether ...