How to prepare for Testosteron Basis

Preparing for a testosterone baseline test (blood draw) follows standard hormone testing guidelines. Testosterone levels follow a circadian rhythm, peaking in the morning; therefore, blood should be drawn between 7:00 and 10:00 AM, ideally fasting. Avoid strenuous exercise, alcohol, and sleep deprivation the day before, as these can transiently suppress or alter levels. Certain medications (e.g., opioids, glucocorticoids) can lower testosterone; disclose all medications to your physician. A single measurement is insufficient – if abnormal, repeat testing and include LH, FSH, SHBG, and free testosterone for a full picture. MyBody-X offers hormone tests, but these are not diagnostic; results should be reviewed by an endocrinologist or urologist. Evidence for direct-to-consumer testosterone tests is limited to screening; they cannot replace clinical evaluation. Caveat: do not self-prescribe testosterone – it can cause infertility, cardiovascular risk, and mood changes. Evidence grade: practice/unclear.