Laboratory Services
Gram Stain
Print this pageUpdated Test Information:
| Test Description | 
							
								 Gram Stain 
							
						 | 
						|
|---|---|---|
| Synonym(s) | 
							
								 Brown & Brenn, Brown & Hopps  | 
						|
| Test ID | 
							
								 GRAM  | 
						|
| Specimen Type | 
							
								 Formalin-fixed, paraffin-embedded tissue blocks (FFPE). If tissue blocks are not available, unstained slides are acceptable (please submit 1–2 slides per antibody to be tested, cuts must be 4 microns thick).  | 
						|
| Specimen Collection / Processing Instructions | 
							
								 Tissue removed during a surgical procedure and placed in 10% NBF soon after removal from the patient. Appropriate tissue for requested staining.  | 
						|
| Required Information | 
							
								 Complete the Incyte Diagnostics requisition with the patient's demographics and relevant clinical history.  | 
						|
| Stability | 
							
								 Ambient: Indefinite  | 
						|
| Unacceptable Specimen Conditions | 
							
								 Slides or paraffin blocks with no tissue remaining. Samples fixed in fixatives other than 10% neutral buffered formalin. Paraffin blocks that have been overheated or frozen.  | 
						|
| Department (code) | 
							
								 Histology  | 
						|
| Methodology | 
							
								 Special Stain, Ventana BenchMark Special Stainer (Spokane) 
 Special Stain, Manual (Tukwila)  | 
						|
| Estimated TAT | 
							
								 1–2 business days from receipt  | 
						|
| Testing Schedule | 
							
								 Monday–Saturday  | 
						|
| Retention | 
							
								 Blocks: 10 years  | 
						|
| CPT Code(s) | 
							
								 88312  |