Specimen Collection Manual and Test Catalog
TESTOSTERONE, TOTAL
Geisinger Epic Procedure Code: LAB3139 Geisinger Epic ID: 37177SPECIMEN COLLECTION
Specimen type:
Serum or plasma
Preferred collection container:
Specimen required:
2 mL of serum or plasma; minimum 0.5 mL
Special notes:
Due to circadian variations of testosterone particularly in young males, an early morning specimen is preferred for men.
SPECIMEN PROCESSING
Processing instructions:
Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection.
Transport temperature:
Refrigerated (preferred) or frozen.
Specimen stability:
Room temperature: 5 days. Refrigerated: 14 days. Frozen: 6 months.
Rejection criteria:
Stability limits exceeded.
TEST DETAILS
Reference interval:
CPT code(s):
84403 Males:
18-49 yrs 249-836 ng/dL
>49 years 193-740 ng/dL
Females:
>18 years 2.9-48 ng/dL
Note: The billing party has sole responsibility for CPT coding. Any
questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Testosterone Total.
Methodology:
Electrochemiluminescence
Synonyms:
TESTOS
Doctoral Director(s):
Review Date:
12/27/2024
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC
Performing Locations