GramNegRod

Gram-negative rod identification - Culture

Laboratory Fee Schedule

Procedure #: MAA0032A

CPT: 87077

Gram-negative rod identification - Culture
Synonym(s):	GNR, non-enteric, non-fermentative rods
Requisition Form	G-2B
Test Description	Identification of gram-negative, nonfermentative and non-enteric fermentative rods from reference culture
Pre-Approval Needed	N/A
Supplemental Information Required	N/A
Supplemental Form(s)	N/A
Performed on Specimens from (sources)	Human
Sample/Specimen Type for Testing	Pure isolate
Minimum Volume/Size Required	At least one viable colony
Storage/Preservation Prior to Shipping	Room temperature or refrigerated
Transport Medium	Appropriate medium that supports growth
Specimen Labeling	Two patient-specific identifiers required (e.g., patient full name, date of birth, Medical record number Identifiers on specimen must exactly match submission form.
Shipping and Specimen Handling Requirements	Ship according to Dangerous Good Regulations, IATA, and/or CFR 49. Ship specimens overnight Monday-Thursday to avoid weekend deliveries.
Method	Bacterial culture, MALDI-TOF (Mass Spectrometry)
Turn-around Time	3-21 days
Interferences/Limitations	Material must be viable. Improper storage or shipping temperatures limit organisms recovery
Common Causes for Rejection	Insufficient quantity Unacceptable specimen type or source Improper shipping conditions Expired media or collection container Discrepancies between specimen label and submission form Incomplete or missing submission form
Additional Information	If Brucella or Francisella sp. is suspected, notify the biothreat lab and submit with G-27A form.

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