The Hormones category explains laboratory tests that assess endocrine function—TSH, Free T4/T3, cortisol, ACTH, LH, FSH, estradiol, testosterone, prolactin, insulin, and more—helping diagnose and monitor hormonal disorders.
The ADH test measures antidiuretic hormone (vasopressin) levels to assess water balance, blood pressure, and kidney function in conditions like SIADH or diabetes insipidus.
ADH (Antidiuretic Hormone) Test: Purpose, Normal Range & High/Low Causes Read More »
ACTH test measures Adrenocorticotropic Hormone levels to assess pituitary and adrenal gland function, helping diagnose Addison’s and Cushing’s diseases.
ACTH Test: Purpose, Procedure, Normal Range, and Result Meaning Read More »
The 17-OHP (17-Hydroxyprogesterone) test measures a hormone produced by the adrenal glands and gonads. It helps diagnose congenital adrenal hyperplasia (CAH) and other adrenal disorders. Learn about its function, normal range, causes of high or low levels, and clinical significance.
The Testosterone Blood Test measures the level of the primary male sex hormone, testosterone, in your blood. This hormone supports reproductive health, muscle mass, bone density, mood, and sexual function in both men and women. The test helps diagnose hormonal imbalances, infertility, erectile dysfunction, and conditions like PCOS or hypogonadism. Morning samples are preferred for accurate results, and normal testosterone ranges differ for men and women.
Testosterone Blood Test – Purpose, Procedure, Normal Range, and Result Meaning Read More »
The Estradiol (E2) blood test measures estrogen levels in the blood to assess fertility, menstrual health, and hormone balance. It helps diagnose conditions like PCOS, menopause, and ovarian disorders. Learn about normal ranges, functions, and causes of high or low estradiol levels.
Estradiol (E2) Blood Test – Normal Range, Function, and Hormonal Importance Read More »
The Prolactin test measures the level of prolactin hormone in the blood. It helps evaluate fertility, menstrual irregularities, and pituitary gland disorders. Learn about its function, normal ranges, and causes of high or low prolactin in both men and women.
Prolactin (PRL) Test – Function, Normal Range, and Causes of High & Low Levels Read More »
The FSH test measures the Follicle-Stimulating Hormone level in the blood. It helps assess fertility, menstrual cycle disorders, and pituitary or gonadal function. Learn about FSH function, normal ranges, and causes of high or low FSH in both men and women.
FSH (Follicle-Stimulating Hormone) Test – Normal Range, Function, and Causes Read More »
The LH test measures luteinizing hormone levels in the blood. It helps evaluate fertility, menstrual disorders, and pituitary or gonadal function. Learn about LH functions, normal ranges, and causes of high or low LH levels in both men and women.
LH (Luteinizing Hormone) Test – Normal Range, Function, and Fertility Role Read More »
The TSH test measures thyroid-stimulating hormone in your blood to assess thyroid function. It helps diagnose hypothyroidism and hyperthyroidism, monitor treatment, and detect pituitary issues. Learn about its role, causes of high or low TSH, and normal reference ranges.
TSH (Thyroid Stimulating Hormone) Test – Normal Range, Function, and Complete Guide Read More »
The FT4 test measures the free thyroxine hormone level in your blood. It helps detect thyroid disorders like hypothyroidism and hyperthyroidism. Learn about its function, causes of abnormal levels, symptoms, reference range, and how the test is performed.
FT4 (Free Thyroxine) Test – Normal Range, Function, Symptoms, and Complete Guide Read More »
