Available Stat

No

Performing Lab

China Basin Chemistry

Performed

Sunday and Wednesday (day shift)

Methodology

Total Testosterone (Chemiluminescent Microparticle Immunoassay - Abbott Architect i2000), Free Testosterone calculation

Reported

Test run on Sunday and Wednesday. Turnaround time 1-5 days

Additional Information

Reference ranges adopted from Quest Diagnostics based on correlation studies comparing our method with the Quest method and by in-house testing of 24 normal male and 31 normal female volunteers in the UCSF Laboratory.

Includes determination of total testosterone.

Free: To convert pg/mL to pmol/L (SI units) multiply by 3.467.

Total: To convert ng/dL to nmol/L (SI units) multiply by 0.0347.

Synonyms

  • Free testosterone

Sample Type

Serum

Collect

Red top

Amount to Collect

2 mL (blood)

Preferred Volume

1 mL (serum)

Minimum Volume

0.75 mL (serum)

Stability (from collection to initiation)

Refrigerated serum: 8 days
Frozen serum: 3 months

Test Code

FTCA

Test Group

Testosterone

Performing Lab

China Basin Chemistry

Specimen Preparation

Refrigerate serum.

Preferred Volume

1 mL (serum)

Minimum Volume

0.75 mL (serum)

Stability (from collection to initiation)

Refrigerated serum: 8 days
Frozen serum: 3 months

Units

pg/mL (free) and ng/dL (total)

Reference Interval

Testosterone, Total:

Males:
Age (years) ng/dL
18-39 307-1068
40-49 270-1068
50-59 252-1068
60-69 251-1068
70-79 251-1065
80-99 181-1050

Females ≥ 18 years:  9-55 ng/dL


Testosterone, Free:
Age Males Females
18-69 years 35-155 pg/mL 0.1-6.4 pg/mL
70-89 years 30-135 pg/mL 0.2-3.7 pg/mL

Additional Information

Reference ranges adopted from Quest Diagnostics based on correlation studies comparing our method with the Quest method and by in-house testing of 24 normal male and 31 normal female volunteers in the UCSF Laboratory.

Includes determination of total testosterone.

Free: To convert pg/mL to pmol/L (SI units) multiply by 3.467.

Total: To convert ng/dL to nmol/L (SI units) multiply by 0.0347.

CPT Codes

84402 and 84403

LOINC Codes

2991-8 and 2986-8

Available Stat

No

Test Code

FTCA

Test Group

Testosterone

Performing Lab

China Basin Chemistry

Performed

Sunday and Wednesday (day shift)

Methodology

Total Testosterone (Chemiluminescent Microparticle Immunoassay - Abbott Architect i2000), Free Testosterone calculation

Collect

Red top

Amount to Collect

2 mL (blood)

Sample Type

Serum

Preferred Volume

1 mL (serum)

Minimum Volume

0.75 mL (serum)

Specimen Preparation

Refrigerate serum.

Units

pg/mL (free) and ng/dL (total)

Reference Interval

Testosterone, Total:

Males:
Age (years) ng/dL
18-39 307-1068
40-49 270-1068
50-59 252-1068
60-69 251-1068
70-79 251-1065
80-99 181-1050

Females ≥ 18 years:  9-55 ng/dL


Testosterone, Free:
Age Males Females
18-69 years 35-155 pg/mL 0.1-6.4 pg/mL
70-89 years 30-135 pg/mL 0.2-3.7 pg/mL

Synonyms

  • Free testosterone

Stability (from collection to initiation)

Refrigerated serum: 8 days
Frozen serum: 3 months

Reported

Test run on Sunday and Wednesday. Turnaround time 1-5 days

Additional Information

Reference ranges adopted from Quest Diagnostics based on correlation studies comparing our method with the Quest method and by in-house testing of 24 normal male and 31 normal female volunteers in the UCSF Laboratory.

Includes determination of total testosterone.

Free: To convert pg/mL to pmol/L (SI units) multiply by 3.467.

Total: To convert ng/dL to nmol/L (SI units) multiply by 0.0347.

CPT Codes

84402 and 84403

LOINC Codes

2991-8 and 2986-8
Ordering

Available Stat

No

Performing Lab

China Basin Chemistry

Performed

Sunday and Wednesday (day shift)

Methodology

Total Testosterone (Chemiluminescent Microparticle Immunoassay - Abbott Architect i2000), Free Testosterone calculation

Reported

Test run on Sunday and Wednesday. Turnaround time 1-5 days

Additional Information

Reference ranges adopted from Quest Diagnostics based on correlation studies comparing our method with the Quest method and by in-house testing of 24 normal male and 31 normal female volunteers in the UCSF Laboratory.

Includes determination of total testosterone.

Free: To convert pg/mL to pmol/L (SI units) multiply by 3.467.

Total: To convert ng/dL to nmol/L (SI units) multiply by 0.0347.

Synonyms

  • Free testosterone
Collection

Sample Type

Serum

Collect

Red top

Amount to Collect

2 mL (blood)

Preferred Volume

1 mL (serum)

Minimum Volume

0.75 mL (serum)

Stability (from collection to initiation)

Refrigerated serum: 8 days
Frozen serum: 3 months
Processing

Test Code

FTCA

Test Group

Testosterone

Performing Lab

China Basin Chemistry

Specimen Preparation

Refrigerate serum.

Preferred Volume

1 mL (serum)

Minimum Volume

0.75 mL (serum)

Stability (from collection to initiation)

Refrigerated serum: 8 days
Frozen serum: 3 months
Result Interpretation

Units

pg/mL (free) and ng/dL (total)

Reference Interval

Testosterone, Total:

Males:
Age (years) ng/dL
18-39 307-1068
40-49 270-1068
50-59 252-1068
60-69 251-1068
70-79 251-1065
80-99 181-1050

Females ≥ 18 years:  9-55 ng/dL


Testosterone, Free:
Age Males Females
18-69 years 35-155 pg/mL 0.1-6.4 pg/mL
70-89 years 30-135 pg/mL 0.2-3.7 pg/mL

Additional Information

Reference ranges adopted from Quest Diagnostics based on correlation studies comparing our method with the Quest method and by in-house testing of 24 normal male and 31 normal female volunteers in the UCSF Laboratory.

Includes determination of total testosterone.

Free: To convert pg/mL to pmol/L (SI units) multiply by 3.467.

Total: To convert ng/dL to nmol/L (SI units) multiply by 0.0347.
Administrative

CPT Codes

84402 and 84403

LOINC Codes

2991-8 and 2986-8
Complete View

Available Stat

No

Test Code

FTCA

Test Group

Testosterone

Performing Lab

China Basin Chemistry

Performed

Sunday and Wednesday (day shift)

Methodology

Total Testosterone (Chemiluminescent Microparticle Immunoassay - Abbott Architect i2000), Free Testosterone calculation

Collect

Red top

Amount to Collect

2 mL (blood)

Sample Type

Serum

Preferred Volume

1 mL (serum)

Minimum Volume

0.75 mL (serum)

Specimen Preparation

Refrigerate serum.

Units

pg/mL (free) and ng/dL (total)

Reference Interval

Testosterone, Total:

Males:
Age (years) ng/dL
18-39 307-1068
40-49 270-1068
50-59 252-1068
60-69 251-1068
70-79 251-1065
80-99 181-1050

Females ≥ 18 years:  9-55 ng/dL


Testosterone, Free:
Age Males Females
18-69 years 35-155 pg/mL 0.1-6.4 pg/mL
70-89 years 30-135 pg/mL 0.2-3.7 pg/mL

Synonyms

  • Free testosterone

Stability (from collection to initiation)

Refrigerated serum: 8 days
Frozen serum: 3 months

Reported

Test run on Sunday and Wednesday. Turnaround time 1-5 days

Additional Information

Reference ranges adopted from Quest Diagnostics based on correlation studies comparing our method with the Quest method and by in-house testing of 24 normal male and 31 normal female volunteers in the UCSF Laboratory.

Includes determination of total testosterone.

Free: To convert pg/mL to pmol/L (SI units) multiply by 3.467.

Total: To convert ng/dL to nmol/L (SI units) multiply by 0.0347.

CPT Codes

84402 and 84403

LOINC Codes

2991-8 and 2986-8

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