Ordering Recommendation

Optimize drug therapy and monitor patient adherence.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Plain red, lavender (EDTA), or pink (K2EDTA).

Specimen Preparation

Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP standard transport tube and flash freeze immediately with dry ice. (Min: 0.3 mL)
Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.

Storage/Transport Temperature

CRITICAL FROZEN.

Unacceptable Conditions

Separator tubes. Thawed specimens.

Remarks
Stability

Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 6 days

Methodology

Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry

Performed

Varies

Reported

5-13 days

Reference Interval

By report

Interpretive Data



Compliance Category

Performed by non-ARUP Laboratory

Note

Hotline History

N/A

CPT Codes

80375 (Alt code: G0480)

Components

Component Test Code* Component Chart Name LOINC
0091350 Levodopa Quantitative, Serum/Plasma 9385-6
0091378 Carbidopa Quantitative, Serum/Plasma 9328-6
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Dopar
  • L-Dopa
  • Larodopa
Carbidopa and Levodopa Quantitative, Serum or Plasma

National Medical Services (NMS)