CIVC - Overview: Cortisol, Inferior Vena Cava, Serum
Testing cortisol levels in the inferior vena cava Second-order testing wen cortisol measurement by immunoassay gives results that are not consistent with clinical symptoms, or if patients are known to, or suspected of, taking exogenous...
TBGI - Overview: Thyroxine-Binding Globulin (TBG), Serum
Cases in which total thyroid hormone levels do not correlate with the thyrometabolic status, most commonly with pregnancy or the use of contraceptive steroids
COCOU - Overview: Cortisol/Cortisone, Free, 24 Hour, Urine
Screening test for Cushing syndrome (hypercortisolism) Assisting in diagnosing acquired or inherited abnormalities of 11-beta-hydroxy steroid dehydrogenase (cortisol to cortisone ratio) Diagnosis of pseudo-hyperaldosteronism due to...
UE3 - Overview: Estriol, Unconjugated, Serum
As an adjunct biomarker in the prenatal diagnosis of disorders of fetal steroid metabolism, including Smith-Lemli-Opitz syndrome (1,2) and X-linked ichthyosis (placental sulfatase deficiency disorders) Evaluating primary or secondary fetal...
CYPZ - Overview: 21-Hydroxylase Gene, CYP21A2, Full Gene Analysis, Varies
Carrier screening and diagnosis of 21-hydroxylase deficient congenital adrenal hyperplasia (CAH) in individuals with a personal or family history of 21-hydroxylase deficiency, or as follow-up to positive CAH newborn screens and/or...
CORTO - Overview: Cortisol, Free and Total, Serum
Assessment of cortisol status in cases where there is known or a suspected abnormality in cortisol-binding proteins or albumin Assessment of adrenal function in the critically ill or stressed patient, thus preventing unnecessary use of...
CCFR - Overview: Cortisol/Cortisone, Free, Random, Urine
Investigating suspected Cushing syndrome (hypercortisolism), when a 24-hour collection is prohibitive (ie, pediatric patients). Assisting in diagnosing acquired or inherited abnormalities of 11-beta-hydroxy steroid dehydrogenase (cortisol...
Providing a genetic evaluation for patients with a personal or family history of steroid resistant nephrotic syndrome (SRNS) Establishing a diagnosis of hereditary SRNS Guiding treatment decisions in individuals with nephrotic syndrome
Reporting an end titer result in spinal fluid specimens Distinguishing, in spinal fluid, autoimmune GFAP astrocytopathy from infectious meningoencephalitis and idiopathic inflammatory central nervous system (CNS) disorders such as multiple...
Reporting an end titer result in serum specimens Distinguishing autoimmune glial fibrillary acidic protein (GFAP) astrocytopathy from infectious meningoencephalitis and idiopathic inflammatory central nervous system (CNS) disorders such as...
Understanding the difference between benign and malignant adrenal tumors has alway been difficult; this new assay will assist with this medical challenge.
Urinary Steroid Profile [Test in Focus] - Insights
Irina Bancos, M.D. gives an overview of this test available through Mayo Clinic Laboratories. She discusses when this testing should be ordered, how this testing compares to other testing approaches, and what clinical action can be taken...
01/2024© Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. Steroid Pathways Mineralocorticoids CYP17A1 = Cytochrome P450 Family 17 Subfamily A Member 1 HSD3B1/HSD3B2 =...
GFAP: Novel Test for a Newly Identified Meningoencephalomyelitis - Insights
Mayo Clinic Laboratories is the only laboratory in the world to offer testing for a novel form of autoimmune meningoencephalomyelitis. Known as autoimmune glial fibrillary acidic protein (GFAP) astrocytopathy, the condition was identified...
What started as a persistent headache for Spencer Lodin soon devolved into slowed speech, seizures, and hallucinations, symptoms which stumped ER doctors into thinking he had meningitis or was suffering from psychosis. Finally, specialized...