Test Code FFTFT Testosterone, Free (Dialysis) and Total, MS

Specimen Required

Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/tube: Plastic vial

Specimen Volume: 1.8 mL

Collection Instructions:

1. Allow blood to clot at room temperature. Centrifuge and immediately aliquot 1.8 mL of serum into a plastic vial.

2. Send refrigerate

Specimen Stability Information: Refrigerated (preferred) 21 days/Ambient 7 days/Frozen 2 years

Specimen Type

Serum Red

Specimen Minimum Volume

0.9 mL

Specimen Stability Information

Specimen Type	Temperature	Time
Serum Red	Refrigerated (preferred)	21 days
	Ambient	7 days
	Frozen

Reject Due To

Gross hemolysis	Reject
Gross lipemia	Reject

Reference Values

TESTOSTERONE, TOTAL, MS

Age	Males (ng/dL)	Females (ng/dL)
Cord blood	17-61	16-44
1-10 days	≤187	≤24
11-30 days	Not established	Not established
1-2 months	72-344	≤17
3-4 months	≤201	≤12
5-6 months	≤59	≤13
7-11 months	≤16	≤11
1-5 years	≤5	≤8
6-7 years	≤25	≤20
8-10 years	≤42	≤35
11 years	≤260	≤40
12-13 years	≤420	≤40
14-17 years	≤1000	≤40
≥ 18 years	250-1100	2-45

TESTOSTERONE, FREE

Age	Males (pg/mL)	Females (pg/mL)
0-4 years	Not established	Not established
5-9 years	<5.4	0.2-5.0
10-13 years	0.7-52.0	0.1-7.4
14-17 years	18.0-111.0	0.5-3.9
18-69 years	35.0-155.0	0.1-6.4
70-89 years	30.0-135.0	0.2-3.7
>89 years	Not established	Not established

Day(s) Performed

Monday through Sunday

Report Available

6 to 9 days

Performing Laboratory

Quest Diagnostics Nichols Institute

CPT Code Information

84402

84403