Laboratory Services
Beta-CrossLaps, Serum
Print this pageUpdated Test Information:
Test Description |
Beta-CrossLaps, Serum
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---|---|---|
Synonym(s) |
B-CTx, Beta CrossLaps, Beta-CTx, C-Telopeptide, C-terminal collagen crosslinks, Carboxy terminal collagen crosslinks, CTx |
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Test ID |
CTX
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General Information |
Monitoring antiresorptive therapies (eg, bisphosphonates and hormone replacement therapy) in postmenopausal women treated for osteoporosis and individuals diagnosed with osteopenia |
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Container Type |
Red Top |
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Specimen Type |
Serum |
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Specimen Requirements |
5 mL |
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Alternate Specimen Type |
SST Serum Gel |
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Specimen Collection / Processing Instructions |
"Patient Preparation: 1. For 12 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins. 2. Patient should be fasting. Collection Instructions: 1. Collect specimen prior to 10 a.m. 2. Centrifuge and aliquot serum into plastic vial and freeze. " |
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Minimum Sample Volume |
0.75 mL |
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Stability |
Frozen 90 days |
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Unacceptable Specimen Conditions |
Gross Hemolysis, Gross Icterus |
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Methodology |
Electrochemiluminescence Immunoassay (ECLIA) |
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Estimated TAT |
1 - 3 days |
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Testing Schedule |
Monday through Saturday |
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Reference Range |
Males |
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Reflex Conditions |
none |
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Performing Lab |
Mayo |
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LOINC Code(s) |
41171-O |