Tetrahydrobiopterin & Neopterin

Label Mnemonic:	PTERIN
Epic code:	LAB5826
Downtime form:	A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Commercial Mailout Laboratory
6240-8 RCP
356-8593

Specimen Instructions:

Collect in: CSF in 5 tube Neurochemistry Collection Kit. Total volume of CSF is 4.5 mL.

Call Specimen Control at 356-3527 or Commercial Mailouts at 356-8593 for collection kits.

CSF should be collected directly from the tap needle: Collect from the first drop into the containers in the order indicated. Fill each tube to the marked line (0.5 milliliters in tube #1 and 1.0 milliliter in tube 2, 3, 4 & 5).

Attach patient identifier to collection kit bag. Place on ice and deliver to laboratory immediately.

Collection Medium:

5-Tube CSF Collection Kit

Minimum:

4.5 mL CSF in the 5 tube Neurochemistry collection kit

Delivery Instructions:

Keep on ice and deliver to laboratory immediately.

Turn Around Time:

2 weeks upon receipt at reference laboratory

Reference Range:

Age (years)         BH4 (nmol/L)         Neop (nmol/L)
    0-0.2               40-105               7-65
  0.2-0.5               23-98                7-65
  0.5-2.0               18-58                7-65
  2.0-5.0               18-50                7-65
  5.0-10                 9-40                7-40
   10-15                 9-32                8-33
   Adults               10-30                8-28

Comments:

This collection kit can also be shared with NEUROTRANSMITTER METABOLITES (LAB5825), 5-METHYLTETRAHYDROFOLATE - CSF (LAB5823), NEOPTERIN ON CSF (LAB5824), PYRIDOCAL 5-PHOSPHATE ON CSF (LAB5828) and SUCCINYLADENOSINE ON CSF (LAB5827).

Please print, complete and submit to the lab, the Neurochemistry and Metabolic Test Request Form from MNG Laboratories, with the specimen.

CPT Code:

82542

See Additional Information:
Specimens Requiring Immediate Delivery