Printable Test Catalog - OU Medicine

(LC/MS-MS)
CLINICAL USE: Evaluate toxicity; monitor therapeutic levels
CPT: 80166
[DPD] DEOXYPYRIDINOLINE CROSSLINK
SPECIMEN REQUIRED: Refrigerated urine
TUBE OR CONTAINER: Urine container
SPECIAL HANDLING: Protect specimen from light (wrap in foil)
Freeze if transit time is greater than 72
hours
SPECIMEN VOLUME: 10 mL
MINIMUM VOLUME: 1 mL
TEST INCLUDES: Deoxypyridinoline; urine creatinine;
DPD/creatinine ratio
TEST AVAILABILITY: Daily
REFERENCE RANGE: Pediatrics:
prepubertal (Tanner Stage I): pubertal (Tanner Stage II-IV): Adults: 2.3-7.4 nmol
Dpd/mmol creatinine
METHODOLOGY: Immunochemiluminometric assay (ICMA)
CLINICAL USE: Tool to assess bone resorption rates in healthy
individuals and in patients with enhanced risk of
developing metabolic bone disease
CPT: 82523; 82570
[DPDDNA] DIHYDROPYRIMIDINE DEHYDROG
SPECIMEN REQUIRED: Whole blood at room temperature
TUBE OR CONTAINER: Lavender (EDTA), Yellow (ACD) or Buccal swab
SPECIAL HANDLING: Specimen can be stored refrigerated for up to
a week (ship at room temperature)
SPECIMEN VOLUME: 7 mL
2 buccal swabs
MINIMUM VOLUME: 3 mL
1 buccal swab
TEST AVAILABILITY: Daily
METHODOLOGY: Polymerase chain reaction (PCR); restriction
enzyme digestion; gel electrophoresis
CPT: 83891; 83892; 83894; 83898; 83912
[DRD] DOPA RESPONSIVE DYT-GCH1 GENE
SPECIMEN REQUIRED: Whole blood at room temperature
TUBE OR CONTAINER: Lavender (EDTA)
SPECIMEN VOLUME: 5 mL
MINIMUM VOLUME: 2 mL
TEST AVAILABILITY: Daily
TURNAROUND TIME: 3-5 weeks
OTHER NAMES: GTP Cyclohydrolase I Deficiency; Dopa-Responsive
Dystonia
METHODOLOGY: Polymerase Chain Reaction (PCR)
CPT: 83890; 83891; 83894; 83898 x 6; 83904 x 6; 83912