Test ID FACYS Acyclovir, Plasma
Specimen Required
***Must submit one specimen per order. Specimens cannot be shared between multiple orders.***
Specimen Type: Plasma
Collection Container/Tube: Lavender top or pink top (EDTA)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Draw blood in an EDTA (lavender top or pink top) tube(s). Plasma gel tube is not acceptable.
2. Centrifuge and send 1 mL of plasma refrigerated in a preservative-free plastic vial.
Method Name
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Reporting Name
Acyclovir, PlasmaSpecimen Type
Plasma EDTASpecimen Minimum Volume
0.5 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Plasma EDTA | Refrigerated (preferred) | 30 days | |
Frozen | 120 days | ||
Ambient | 30 days |
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 - Sunday
Report Available
9 to 11 daysPerforming 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 |