Testosterone by LC-MS/MS
Clinical Background:
While the Roche testosterone assay is used for routine testosterone measurements, LC-MS/MS can be used in cases where interference in the Roche immunoassay is suspected or to confirm abnormal resul...
While the Roche testosterone assay is used for routine testosterone measurements, LC-MS/MS can be used in cases where interference in the Roche immunoassay is suspected or to confirm abnormal results if necessary.
Please contact the duty biochemist or endocrine lab to add LC-MS/MS testosterone analysis if required.
Test Details
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Discipline:
Biochemistry
Biochemistry
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Specimen Container Adult:
Serum sample
Serum sample
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Specimen Container Paediatric:
Serum sample
Serum sample
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Minimum Volume Adult:
1 mL blood
1 mL blood
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Minimum Volume Paediatric:
1 mL blood
1 mL blood
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Sample Stability:
Unseparated: Same day
Separated: 7 days at 4-8°C, 6 months at -20°C
Unseparated: Same day
Separated: 7 days at 4-8°C, 6 months at -20°C
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Transport Requirements:
First class post at ambient temperature
First class post at ambient temperature
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Reference Ranges:
Testosterone LC-MS/MS Reference Ranges (nmol/L):
Age
Male
6m-1y
<1.3
2-9
<1.0
10-11
<5.7
12-13
<21.5
14-15
1.1-25.4
16-17
5.5-28.7
18-49
7.9-31.3
...Read MoreTestosterone LC-MS/MS Reference Ranges (nmol/L):
Age
Male
6m-1y
<1.3
2-9
<1.0
10-11
<5.7
12-13
<21.5
14-15
1.1-25.4
16-17
5.5-28.7
18-49
7.9-31.3
50+
6.7-31.3
Age
Female
6m-1y
<1.0
2-11
<1.1
12-15
<1.8
16-17
<2.0
18+
<1.9
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Routine Contact Name:
Duty Biochemist
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Routine Telephone:
Freeman: 0191 244 8889
RVI: 0191 282 9719Freeman: 0191 244 8889
RVI: 0191 282 9719 -
Routine Email:
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Specialist Test:
Yes
Yes
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Specialist Contact Name:
Endocrine Lab
Endocrine Lab
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Specialist Telephone:
0191 282 4025
0191 282 4025