LD, CSF

Test Code

CSFLDH (NI)

Quest Code

1687

CPT Codes
83615

Preferred Specimen

1 mL CSF collected in a sterile plastic screw-cap container

Minimum Volume

0.5 mL

Transport Container

Sterile plastic screw-cap container

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: Unacceptable

Methodology
Ultra Violet Kinetic

Setup Schedule

Daily

Report Available

2-3 days

Reference Range

≤25 U/L

Clinical Significance

LD in cerebrospinal fluid has been studied in association with bacterial and viral meningitis, malignancy, neonatal CNS hemorrhage, and stroke.

Performing Laboratory

Quest Diagnostics Nichols Institute-Chantilly VA

14225 Newbrook Drive

Chantilly, VA 20151-2228

Last Updated: March 19, 2025

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.