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General Information:

Web Links:

Mayo Clinic Laboratories

Test Code LAB0206144 Testosterone, Total, Serum

Methodology

Chemiluminometric Immunoassay

Useful for evaluation of males with erectile dysfunction, gynecomastia, osteoporosis, infertility, delayed or precocious puberty, and for monitoring replacement therapy; women with hirsutism, virilization, and oligomenorrhea; and infants with ambiguous genitalia and/or virilizing syndromes.

Performing Laboratory

CentraCare Laboratory Services

Specimen Requirements

Specimen Type: Serum

Container/Tube:

Preferred: Serum gel or plain red top

Specimen Volume: 0.5 mL

Minimum Volume: 0.25 ml

Additional Information: Patient’s age and sex are required.

Collection Instructions:  Centrifuge within 1 hour of collection.  Serum or Plasma must be removed from gel for cells immediately after centrifugation.

Specimen Transport Temperature

Refrigerated

Reference Values

Males

<18 years: not established

18-70 years: 225-972 ng/dL

Females

<18 years: not established

>18 years: 5-62 ng/dL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

84403