Testosterone, Calculated Bioavailable

Test Name

Bioavailable Testosterone

Type Specimen

Serum

LIS Code

BIOTST

Availability

Monday - Friday only

Lab Section

Pathology Core Reference Laboratory

Fluid Type

Serum separated from whole blood

Fluid Type And Minimum Volume

Serum 0.8 mL

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, Calculated Bioavailable

Special Handling Instructions

No serum separator 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
1-6 yo    less than 1.2 less than 1.2
7-9 yo 0.3-4.5 0.3-2.5
10-11 yo 0. 4-5.6 0.1-16.1
12-13 yo 1.5-16.9 1.3-259.2
14-15 yo 2.7-20.3 8.6-303.3
16-17 yo  3.0-25.7 31.5-458-1
18-30 yo 2.0-18.5 18 and older 117-612
31-40 yo  3.7-23.0  
41-51 yo 2.5-14.9  
postmenopausal  1.4-8.5  
Tanner Stages    
Stage I 0.3-5.0 0.3-11.7
Stage II 1.1-13.5 0.3-53.1
Stage III 3.4-25.2  1.7-266.4
Stage IV 2.5-35.1 36-436.5
Stage V 2.3-20.7 111.6-536-4

 

 

Test Results

ng/dL