Zinc oxide is the metal zinc that has been oxidized. The chemical formula is ZnO, 1 zinc atom and 1 oxygen atom held together by an ionic bond. Zinc oxide does occur in nature as the mineral zincite, but it is quite rare and commercially unavailable.
I have done a few stool samples in my time and have always just stored them in the fridge, until the next day to take them into the docs. Good luck hun I hope they get it sorted.
A stool culture is done to find bacteria, viruses, parasites, or fungi that may be causing an infection. Stool culture test results usually take 2 to 3 days. But some cultures for fungus and parasites may take weeks to get results. Stool culture.