Androstenedione (A)

Androstenedione is one of the four male hormones in the female blood circulation. Androstenedione is the main precursor of testosterone. The circulating androstenedione is half of the secretion of the ovary and adrenal glands. During the normal menstrual cycle, The level of androstenedione is five times higher than that of testosterone. A commonly used method for the determination of androstenedione is radioimmunoassay. Basic Information Specialist classification: growth and development check classification: endocrine examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Found in adrenal insufficiency, ovarian dysfunction, sickle cell anemia, male development delay. Normal value: Serum A (male): 3.5-7.5 nmol/L Serum A (female): 4.5-10.8 nmol/L Above normal: Found in female hirsutism, hemorrhoids, congenital adrenal hyperplasia, adrenal cortical tumors, polycystic ovary syndrome, application of clomiphene or HCG. negative: Positive: Tips: Barbiturate sedatives, clomiphene citrate, gonadotropins and oral contraceptives can increase testosterone; androgen, dexamethasone, digoxin and alcohol make the results low. Normal value Male 3.5 ~ 7.5nmol / L. Female 4.5 to 10.8 nmol/L. Clinical significance Increased in women with hirsutism, hemorrhoids, congenital adrenal hyperplasia, adrenal cortical tumors, polycystic ovary syndrome, application of clomiphene or HCG. Reduced in adrenal insufficiency, ovarian dysfunction, sickle cell anemia, male development delay. Low results may be diseases: high adrenal insufficiency may result in diseases: precautions for male breast hypertrophy Barbiturate sedatives, clomiphene citrate, gonadotropins and oral contraceptives can increase testosterone; androgen, dexamethasone, digoxin and alcohol make the results lower. Inspection process The coated tubes were numbered, and then operated in sequence, the reaction solution was aspirated, and washed 3 times with water to measure the precipitate cpm value. Not suitable for the crowd Generally no taboos. Adverse reactions and risks Generally not.