A sputum gram stain is a laboratory test that looks at a sample of sputum (mucus and other material that is coughed up from the lungs) under a microscope to identify the types of bacteria present.
When this test is required
What the Test Detects
A sputum gram stain is a laboratory test that looks at a sample of sputum (mucus and other material that is coughed up from the lungs) under a microscope to identify the types of bacteria present.
Preparation for the Test
There may be specific instructions to follow before collecting the sputum sample, such as avoiding eating, drinking, or smoking for a certain period of time before the test.
Sample Requirements
A sputum sample is collected by coughing up mucus from the lungs into a sterile container.
Additional Notes
A sputum gram stain is often done in combination with a sputum culture, which involves growing the bacteria in the laboratory to identify the specific type and determine which antibiotics will be most effective in treating the infection.
