DUTCH Adrenal Assessment, Dried Urine

Cortisol (x4); Cortisone (x4); Creatinine (x4); 24h Free Cortisol; 24h Free Cortisone; b-Tetrahydrocortisol (b-THF); a-Tetrahydrocortisol (a-THF); b-Tetrahydrocortisone (b-THE); Metabolized Cortisol (THF = THE); DHEA-S

Dried Urine

Dried samples are accurate for hormone testing, and values correlate to liquid samples. Samples are more stable once they are dried and also much easier to ship than liquid samples. Patients collect just four or five dried urine samples over a 24-hour period.

Dried specimen shipments are convenient worldwide. Dried samples are stable for several weeks. The DUTCH correlation to 24-hour collections is excellent.

Testing Methods
Cortisol, cortisone and related metabolites are tested by LC-MS/MS. The remaining hormones are tested by GC-MS/MS. The most accurate methods available are used for all tests. These methods show increased accuracy over immunoassays used in typical serum and saliva testing.

Source: https://dutchtest.com/wp-content/uploads/2015/11/Precision-Analytical_White_Paper_March_2015.docx.pdf; Accessed 20-Oct-2016