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NORTRIPTYLINE

Test Code
NORT
 
This test is a lab developed test. For further information, see the Compliance Remarks section below.
Synonyms
Aventyl; Pamelor
SPECIMEN REQUIREMENTS
Container Type
Red top tube (plain)
Supply Item Number
1372
Specimen Type
Serum
Preferred Volume
0.5 mL
Emergency Minimum Volume
0.2 mL
Collection Procedure
Optimal time to collect sample: Draw 10-14 hours post-dose. If a divided dose is given, draw before morning dose.
Specimen Processing
Blood samples should be collected by venipuncture in a plain red top and serum samples must be allowed to clot naturally at room temperature. Separate serum from cells within 4 hours and place in separate polypropylene (not polystyrene) tube.
Store and Transport
Refrigerated
Required Patient Info
Date and time of dose and draw
Stability
Room Temp 5 days  Refrigerated 1 week  Frozen (-20 °C) 1 month  Frozen (-70 °C) 1 year  
Unacceptable Condition
DO NOT use gel separator tubes (Corvac®, SST or equivalent) for the collection of blood samples for this test.
Limitations
Protriptyline interferes with nortriptyline.
Reference Laboratory
PAML
Reference Lab Test Code
LCA code 911154
CPT Codes
80335, (HCPCS G0480)
Interface Order Code
80182
Billing Code
NOR
Test Schedule
Mon, Wed, Fri
Turnaround Time
1-3 days
Method
Tandem Mass Spectrometry
Reference Ranges
TitleDescriptorRangesUnits
NortriptylineTherapeutic50-150ng/mL
Toxic> 150
Compliance Remarks
This test was developed and its performance characteristics determined by PAML. The U.S. Food and Drug Administration (FDA) has not approved or cleared this test. However, FDA approval or clearance is currently not required for clinical use of this test. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. PAML is authorized under Clinical Laboratory Improvement Amendments (CLIA) to perform high-complexity testing.

Interface Codes
typeorder codetest descriptionresult coderesult descriptionunitsdecimal placesloinc code
o80182Nortriptyline
r80182Nortriptyline80182Nortriptylineng/mL03872-9

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