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.
Learn what the Metanephrines Plasma Test measures, causes of high levels, symptoms, ranges, preparation, and when to seek medical care.
Metanephrines Plasma Test: Purpose, Normal Range, Symptoms & Tumor Detection Read More »
Learn what the Leptin Serum Test is, why it’s done, normal ranges, symptoms of high or low leptin, and when to consult a doctor.
Leptin Serum Test: Meaning, Normal Range, Symptoms & Uses Read More »
A simple explanation of the IRMA test, including how it works, what it measures, its uses, results, preparation, and when to see a doctor.
What Is IRMA Test? Full Guide to Procedure, Uses, Results & Normal Ranges Read More »
iPTH test evaluates parathyroid function, calcium balance, and kidney disease. Learn causes, symptoms, ranges, and interpretation of high and low PTH levels.
iPTH Test: Function, High/Low Levels, Symptoms & Normal Range Read More »
IGF-2 is essential for fetal growth, metabolism, and tissue repair. Learn its functions, high/low causes, symptoms, reference ranges, and clinical importance.
IGF-2 Test: Function, Levels, Growth Role & Clinical Uses Read More »
IGFBP-3 is the main binding protein for IGF-1 and IGF-2. Learn its functions, normal ranges, causes of high/low levels, symptoms, and role in growth disorders.
IGFBP-3 Test: Function, High/Low Levels, Growth & GH Activity Read More »
IGF-1 test helps diagnose growth disorders, acromegaly, gigantism, and GH deficiency. Learn functions, causes of high/low levels, symptoms, and reference ranges.
IGF-1 Test: Growth Hormone Marker, High/Low Levels & Symptoms Read More »
Inhibin B test evaluates ovarian reserve, male fertility, puberty disorders, and certain tumors. Learn functions, causes of high/low levels, and clinical importance.
Inhibin B Test: Role, Levels, Fertility & Clinical Uses Read More »
Inhibin A test helps assess pregnancy health, Down syndrome risk, ovarian function, and certain tumors. Learn normal levels, causes, and clinical importance.
Inhibin A Test: Purpose, Results, Screening & Normal Levels Read More »
Learn about the Growth Hormone (GH) Test, its purpose, symptoms of high and low GH, reference ranges, causes, preparation, and when to consult a doctor.
Growth Hormone Test: Meaning, High/Low Levels & Normal Ranges Read More »
