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Diltiazem, Serum/Plasma
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
DILTAZ
CPT Codes
80299
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.4 mL
Other Acceptable Specimens
Plasma collected in an EDTA (lavender-top), or EDTA (pink-top) tube
Instructions
Promptly centrifuge and separate serum or plasma into a plastic (preservative-free) screw-capped vial using approved guidelines.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 8 days
Refrigerated: 8 days
Frozen: 30 days
Refrigerated: 8 days
Frozen: 30 days
Methodology
Gas Chromatography (GC)
FDA Status
This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the US Food and Drug Administration.
Setup Schedule
Set up: As needed; Report available: 8 days
Report Available
8 Days
Reference Range
See Laboratory Report
Clinical Significance
Diltiazem is a calcium ion influx inhibitor. It is indicated in angina pectoris due to coronary artery spasm and chronic stable angina.
Performing Laboratory
National Medical Services
200 Welsh Rd
Horsham, PA 19044
Last Updated: November 29, 2021
