Sample Contamination

A sample vial of what?

Sorry, a should have been ore specific. I'm talking about a specimen sample (for example a rapid or PCR covid nasal/pharyngeal swab, or a blood sample)

I have been tested many many times.  Depending on where I went, there were times when they would hand me the swab and I would swab myself and then insert the swab into the collection tube and break off the extra stick and then hand it back to the collector.  There was no way that I couldn't touch the top of the open tube.  Other times when the collector swabbed me, same thing when breaking off the extra stick.

The lab is looking for the virus.  They are able to differentiate between the virus and a rouge germ.  Same in the inpatient setting when we swab ICU patients for MRSA, for example.

Swabbing is not a sterile process and if it's a blood test, the outside of the tube is non-sterile.  With blood, there's no way to contaminate the specimen by touching the top.

I honestly would be more concerned about contaminating myself if I accidently came in direct contact with any person's specimen.

☺️

I will add, even if drawing blood into a syringe and then transferring it into a tube, I do not think the specimen is compromised in any way.  Protect yourself.

24 minutes ago, JadedCPN said:

 

If drawing blood cultures, you can absolutely contaminate the specimen by touching the top and/or during the transfer process.

Of course.  But you are so much more likely to contaminate a culture specimen by not cleaning the collection site on the arm, line, wound, etc than you are in transferring into the tube or bottle. 

The question was about collecting Covid specimen's.  Not blood cultures.  ☺️