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Test ID FMIRT Mirtazapine (Remeron)

Method Name

High Performance Liquid Chromatography with Fluorescence Detection (HPLC-FL)

Reporting Name

Mirtazapine (Remeron), Serum

Specimen Type


Specimen Required

Submit only 1 of the following specimens:



Draw blood in a green-top (sodium heparin) tube(s), plasma gel tube is not acceptable. Spin down and send 2 mL sodium heparin plasma refrigerated in a plastic vial.



Draw blood in a plain red-top tube(s), serum gel tube is not acceptable. Spin down and send 2 mL of serum refrigerated in a plastic vial.

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Refrigerated (preferred) 14 days
  Frozen  180 days
  Ambient  72 hours

Reference Values

Reference range:  4.0 – 40.0 ng/mL


Expected steady state trough mirtazapine concentrations in patients receiving recommended daily dosages:  4.0 – 40.0 ng/mL


Toxic range not established.


Day(s) and Time(s) Performed

Monday through Sunday

Performing Laboratory

Medtox Laboratories, Inc.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FMIRT Mirtazapine (Remeron), Serum 17283-3


Result ID Test Result Name Result LOINC Value
Z3323 Mirtazapine 17283-3

NY State Approved