How to prepare for Testosteron Check

Preparation for a testosterone check follows standard medical guidelines, as the provided context does not include specific instructions. Testosterone follows a circadian rhythm: levels peak between 8 and 10 AM. Therefore, blood should be drawn in this morning window, ideally fasting (at least 8 hours without food) because fat and carbohydrate intake can affect SHBG levels. Avoid alcohol and strenuous exercise for 24 hours before the test, as both can temporarily lower testosterone. Also, ensure adequate sleep and minimize stress. For follow-up tests, maintain consistent conditions. Note: A single measurement is not conclusive; repeated testing may be needed. Evidence level: practice (standard clinical recommendations).