Carbidopa and Levodopa Quantitative, Serum or Plasma
Also known as: SINEMET SP
Use
This test is used to optimize drug therapy and monitor patient adherence by quantifying the concentrations of Carbidopa and Levodopa in serum or plasma. Levodopa is commonly used in the treatment of Parkinson's disease, and this test helps in maintaining appropriate plasma concentrations to ensure efficacy and avoid side effects.
Special Instructions
For accurate results, separate the specimen from cells as soon as possible or within two hours of collection. Then transfer 1 mL of serum or plasma to an ARUP standard transport tube and flash freeze immediately using dry ice. Multiple specimens must be submitted if multiple tests are ordered.
Limitations
The test is not performed at ARUP Laboratories; it is conducted by a non-ARUP laboratory, NMS Labs, which means the turnaround time may vary. This test has not been cleared or approved by the US FDA, so all results should be interpreted within the context of clinical findings.
New York Approved
Methodology
Mass Spectrometry
Biomarkers
LOINC Codes
- 9385-6
- 9328-6
Result Turnaround Time
5-13 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.3 mL
Container
ARUP standard transport tube
Collection Instructions
Separate from cells ASAP or within 2 hours of collection, then flash freeze immediately with dry ice.
Storage Instructions
CRITICAL FROZEN.
Causes for Rejection
Separator tubes. Thawed specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | 6 days |