8456Gram Stain
Specimen Type
Specimen Stability
Reference Range
Any source
Fluid – 24 hours refrig; BBL culture swab 48 hours at room temp
See Report
Specimen Requirements
0.50ul required
Specimen Type:Any source
Method
Gram stain - microscopy
Schedule
Monday-Saturday
Instructions/Notes
Indicate source/site
Clinical Utility
The Gram stain is used to differentiate gram –negative bacteria from gram-positive bacteria and at the same time determining morphology of the bacteria. The bacterial cell wall composition is the key to the Gram stain method and differentiates the two bacterial groups based on cell color after staining.
CPT Codes
87205
