¿Cuál es el Nivel Normal de Testosterone?
Rangos normales: Total Testosterone (Male) 264–916 ng/dL; Free Testosterone (Male) 5–21 ng/dL; Total Testosterone (Female) 15–70 ng/dL. Valores fuera de estos rangos pueden indicar una condición que requiere evaluación adicional.
Tabla de Rangos de Referencia
| Marcador | Bajo | Normal | Alto |
|---|---|---|---|
| Total Testosterone (Male) | Below 264 ng/dL — low testosterone | 264–916 ng/dL | Above 916 ng/dL — may indicate supplementation |
| Free Testosterone (Male) | Below 5 ng/dL — low bioavailable T | 5–21 ng/dL | Above 21 ng/dL |
| Total Testosterone (Female) | Below 15 ng/dL | 15–70 ng/dL | Above 70 ng/dL — may suggest PCOS |
Qué Afecta los Resultados
Time of day (testosterone peaks between 7-10 AM), age (declines ~1% per year after 30), sleep quality, obesity, medications (opioids, steroids), stress, and acute illness.
Cuándo Repetir la Prueba
For diagnosis, two separate morning draws are recommended. If on TRT, test every 3-6 months. Otherwise, annually after age 40.
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