What does "sterile" mean to healthcare workers?

[keangkong]

What does "sterile" mean? Specifically, when a healthcare worker uses the term "sterile," what does a healthcare worker mean?

When I looked up "sterile" in two dictionaries, I saw two definitions, both of which were better than the others, but which seem to have problems.

Definition one: "free from living organisms and especially pathogenic microorganisms." https://www.merriam-webster.com/dictionary/sterile.

Definition two: "completely clean and not containing any bacteria that might cause infection." https://www.ldoceonline.com/dictionary/sterile.

The problem with each is they are phrased in absolute terms. I suspect that even things such as a sterile laboratory have some amount of pathogenic microorganisms and bacterial that might cause infection. Am I wrong? They just have less of those. As I understand the term, "sterile" would involve something cleaner than your dishes when they're in your dishwasher right after it has cleaned them.

When a healthcare worker uses the term "sterile," what do they mean? Thanks for your help.

 

[scarywood75]

"Sterile" in healthcare means that an item or environment has been treated to eliminate all viable microorganisms—even those that can cause infection. While in theory it sounds absolute, in practice it means the item meets strict sterilization standards (using methods like autoclaving or chemical sterilization) so that any microbes present are nonviable and pose no infection risk during procedures. It's not just "cleaner" than everyday objects—it’s been processed to a level that's safe for surgical or invasive use.

 

[Doxyisfoxy]

"Sterile" in healthcare means that an item or environment has been treated to eliminate all viable microorganisms—even those that can cause infection. While in theory it sounds absolute, in practice it means the item meets strict sterilization standards (using methods like autoclaving or chemical sterilization) so that any microbes present are nonviable and pose no infection risk during procedures. It's not just "cleaner" than everyday objects—it’s been processed to a level that's safe for surgical or invasive use.

Just to add on to this “sterile technique” is a procedure or protocol that would maintain the sterility of a product or surface while you’re working with it. So once something is “sterile” (either it comes sealed from the manufacturer or you sterilized it yourself with methods listed above) you want it to still be sterile when you’re done using it. So basically these procedures would avoid anything that would INTRODUCE bacteria. So touching things with bare hands, leaving sterile items on non-sterile surfaces, breathing/coughing on things, are all situations that would introduce bacteria and could contaminate an environment. Reconstituting peptides are good examples. This is not to say you need to wear gloves or wear a mask when you reconstitute but like, washing your hands and keeping your fingers off the top of a vial, and wiping with alcohol is the bare minimum.