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N-Telopeptide, 24 hour urine

Item Value
Approval req'd? No
Available Stat? No
Test code MOLT (Order in Apex as 'Miscellaneous Outside Lab Test' using the complete test name above)
Performed by Quest
Sendout? Yes
Method Enhanced Chemiluminescence
Collection Instructions For 24 hour specimen keep container refrigerated during collection.
Container type 24 hour urine collection container

Click here for Urine Preservative Requirements
Amount to Collect Entire 24 hour urine output
Sample type 24 hour urine collection
Preferred volume 2 mL urine
Min. Volume 1 mL urine
UCSF Rejection Criteria Preserved or acidified sample. 24 hour collection container not refrigerated during collection.
Processing notes Aliquot 2 mL and freeze at -20C. Order Quest #36421X
Units nmol BCE/mmol creatinine
Normal range
≥ 18 year old premenopausal females 5-79 nmol BCE/mmol creatinine

≥ 18 year old males:
18-29 years 5-88 nmol BCE/mmol creatinine
30-39 years 7-51 nmol BCE/mmol creatinine
40-49 years 5-47 nmol BCE/mmol creatinine
50-60 years 6-43 nmol BCE/mmol creatinine
Synonyms Collagen-Crosslinked; Bone markers; osteoporosis
Stability Room temperature 3 days, refrigerated 5 days, frozen at -20C 1 month
Turn around times Test run Tuesday-Sunday Turnaround time: 2-6 days.
Additional information This assay reflects breakdown of bone matrix by collagenase. A value within the premenopausal range does not exclude osteoporosis or the need for therapy.

Results are primarily of use in monitoring the
response to treatment. A decline of ≥ 30% following 6 months of estrogen replacement therapy is indicative of a positive therapeutic response in postmenopausal women and in 88% of women was associated with maintained or increased bone mineral density Ref: Chestnut CH et al. Amer J Med 1997;192:29
CPT coding 82523-90
Last Updated 11/20/2014 11:30:44 AM
Entry Number 1266
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