What is a sputum Gram’s stain? A sputum Gram’s stain is a laboratory test that allows your doctor to diagnose a bacterial infection in your respiratory tract. They may order it if you have symptoms of ...
A female patient with cystic fibrosis in her mid-twenties has a positive AFB sputum culture. Below is a Kinyoun stain of positive MGIT tube fluid. The images show branching, beaded bacterial rods that ...
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