Gram Stain
Also known as: MS GRAM
Use
The Gram Stain test is crucial for detecting the presence and type of microorganisms in a given specimen. It aids in identifying infections caused by bacteria which can be categorized as gram-positive or gram-negative based on their staining properties. Additionally, the test can detect white blood cells (WBCs) which might indicate an immune response to an infection. Gram staining is generally used for the initial diagnosis of bacterial infections and guides the selection of appropriate microbiological cultures and treatments.
Special Instructions
Transport the labeled slide or specimen in Eswab transport media, using ARUP Connect™ for ordering supplies, or contact ARUP Client Services. Make sure to label specimens correctly with the source type, as this is required for testing.
Limitations
The test cannot be used for blood, bone marrow, stool, vaginal specimens, or any body fluid inoculated in culture bottles, as these are considered unacceptable conditions for the Gram stain procedure. Additionally, frozen specimens are not acceptable, and improper labeling could lead to rejection. Environmental factors such as a lack of immediate transport or incorrect storage may affect test results.
New York Approved
Methodology
Other
Biomarkers
LOINC Codes
- 664-3
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Other
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
Transport labeled slide or specimen in Eswab transport media available from ARUP.
Storage Instructions
Store at room temperature.
Causes for Rejection
Blood, bone marrow, stool, vaginal specimens, or body fluid inoculated in culture bottles.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 48 hours |
| Frozen | Unacceptable |