Know Your Blood Parameters: Testosterone

1. Parameter Name

   Testosterone

   
   

2. Test Type

   Blood

   
   

3. Normal Range

   Men: 300 – 1,000 ng/dL

   Women: 15 – 70 ng/dL

   
   

4. High Levels Indicate

   Androgen-secreting tumors, steroid use, polycystic ovary syndrome (PCOS) in women.

   
   

5. Low Levels Indicate

   Hypogonadism, pituitary disorders, aging, chronic illness.

   
   

6. Why It's Tested

   To evaluate sexual dysfunction, infertility, delayed or precocious puberty, and androgen excess.

   
   

7. Associated Symptoms (if abnormal)

   High: Aggression, acne, hirsutism (in women), infertility.

   Low: Fatigue, decreased libido, erectile dysfunction, muscle loss.

   
   

8. What To Do If Abnormal

   Confirm with repeat test in morning, evaluate LH/FSH; endocrine referral may be necessary.

   
   

9. Common Conditions Related

   Hypogonadism, androgen-secreting tumors, PCOS, adrenal disorders.

   
   

10. Nutrition or Lifestyle Connection

    Maintain healthy weight, manage stress, balanced diet with zinc and vitamin D.

    
    

11. References (APA Format)

Melmed, S. et al. (2016). Williams Textbook of Endocrinology (13th ed.). Elsevier.

MedlinePlus. (2023). Testosterone Test. https://medlineplus.gov/lab-tests/testosterone/