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Testing Results
IMPORTANT! Pre-approval needed from state or local health department. Local or State Health Department. Send approval to NPHL@unmc.edu or call (402) 559-9444.

NPHL has moved to an electronic ordering system, NUlirt, and it is now the preferred method to order all tests. Once ordered, print a "batch list" (see NUlirt Guide).

Forms Required - Nulirt batch list or NPHL Test Request Form (completed in entirety) must accompany the specimen to include the following information: symptoms and date of onset, pregnancy status, travel and vaccine history. Testing will not be performed without all required information.

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  Test: Organophosphorous Nerve Agent Metabolites, Serum (OPNAS)
  • FOR EMERGENCY RESPONSE/CHEMICAL TERRORISM ONLY
  • CALL 24/7 PAGER (402) 888-5588 PRIOR TO SAMPLE SUBMISSION 
 
  Synonym:  
  Method: High-Performance Liquid Chromatography Tandem Mass Spectrometry (HPLC MS/MS)  
  Availability: Emergency Response Only  
  Specimen: Serum  
  Collection Device: Random serum as soon as possible after an exposure incident  
  Volume: Optimum: 1 mL  
  Storage/Transport:

Freeze immediately and transport on dry ice. 

 
  Unacceptable:
  • Low volume (<1.5 mL)
  • Inappropriate storage temperature
  • Damaged collection containers
 
  Specimen Stability: Up to 3 years at -70 ºC  
  Reference Interval: Organophosphorous Nerve Agents are not normally found in humans  
  Reportable Disease:  
  Comments: FOR EMERGENCY RESPONSE/CHEMICAL TERRORISM ONLY. CALL 24/7 PAGER (402) 888-5588 PRIOR TO SAMPLE SUBMISSION  
  Revised: 5/18/2023 

 

If you have questions about proper specimen collection, please call NPHL Client Services at (402) 559-2440 or toll free at (866) 290-1406.

 

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