Testosterone, Total by LC-MS/MS

Specimen Tube Type Transport

Red top serum only

Container Whole Blood Required

3 mL filled tube or 6 mL tube

Critical Value

None

Summary Test Name

Testosterone, Total by LC-MS

Special Handling Instructions

No serum seperator or gel tubes.

Specimen Stability

Ambient 24 hours, refrigerated 1 week, frozen 6 months

Minimum Volume

0.8 mL

Specimen Preparation In House

Separate serum from cells as soon as possible or within 2 hours of collection.

Stat Availability

No

Test Turnaround Time Routines And Stats

2-5 days, stat not available
Draw date: Monday, Tuesday, Wednesday-Analysis date Thursday- result reported Friday
Draw date: Thursday, Friday, Saturday, Sunday-Analysis date Monday-Result reported Tuesday

Patient Preparation

Collect between 06:00 - 10:00 AM

Preferred Volume

1.0 mL

Reference Value

AGE	FEMALE ng/dl	MALE ng/dl
Premature 26-28 wks	5-14	53-113
Premature 31-35 wks	5-20	33-179
Newborn	18-58	68-360
1-5 months	less than 18	13-327
6-24 months	less than 8	less than 33
2-3 yo	less than 0.6	less than 0.6
4-5 yo	less than 27	less than 17
6-7 yo	less than 6	less than 12
8-9 yo	1-10	2-7
10-11 yo	3-29	2-149
12-13 yo	5-45	3-557
14-15 yo	5-47	28-660
16-17 yo	8-52	142-743
18-39 yo	8-50	270-972
40-59 yo	8-50	270-801
60 yo and older	5-29	270-648
premenopausal	8-50
postmenopausal	5-29
Tanner Stages
Stage I	2-15	2-14
Stage II	5-36	3-273
Stage III	9-57	9-766
Stage IV-V	10-56	146-762

Test Results

ng/dl (total testosterone)