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HelpTest Code FACYS Acyclovir, Plasma
Specimen Required
***Must submit one specimen per order. Specimens cannot be shared between multiple orders.***
Collection Container/Tube: Lavender top or pink top (EDTA) (Plasma gel/PST are not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL Plasma
Collections Instructions:
1. Centrifuge and aliquot 1 mL of plasma into a plastic vial.
2. Send refrigerated.
Secondary ID
75396Method Name
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reporting Name
Acyclovir, PlasmaSpecimen Type
Plasma EDTASpecimen Minimum Volume
Plasma: 0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Plasma EDTA | Refrigerated (preferred) | 30 days |
| Frozen | 120 days | |
| Ambient | 30 days |
Reject Due To
All specimens will be evaluated by the processing and performing laboratories for test suitability.Reference Values
Reporting limit determined each analysis.
For using Acyclovir:
Usual therapeutic range (vs. Genital Herpes) during chronic oral daily divided dosages of 1200-2400 mg:
Peak: 0.40-2.0 mcg/mL plasma
Trough: 0.14-1.2 mcg/mL plasma
For using Valacyclovir as a metabolite:
Mean steady-state (±1 SD) peak plasma levels following a 500 mg twice daily regimen
of Valacyclovir:
2.0-4.0 mcg Acyclovir/mL
Day(s) Performed
Monday through Sunday
Report Available
9 to 11 daysSpecimen Retention Time
2 weeksPerforming Laboratory
NMS LabsCPT Code Information
80299
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FACYS | Acyclovir, Plasma | 9416-9 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z3531 | Acyclovir | Not Provided |
Test Classification
This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the U.S. Food and Drug Administration.Clinical Information
Refer to www.nmslabs.com/test-catalog