intro & sample collection Flashcards
how to determine poor sputum sample
high number of epithelial cells in gram stain
how to determine poor urine sample
high amount of skin flora and epithelial cells
duration for gram stain/microscopy
same day
duration for culture
next day
duration for sensitivity results
2 days later (send sample on monday - results on wed)
what is commensal bacteria
normal and harmless flora on our body
what is colonisation in ref to bacteria and is it considered a sterile site?
presence of bacteria without causing an infection, non-sterile site
what test for parasites
OCP
what is serology
blood antibody test
what is the lab diagnosis for fungi
MCS
S - but not necessarily done all the time
what grp of patients do u put in a negative pressure room
TB! highly infectious pt - keeps infected air inside
what grp of patients do u put in a positive pressure room
immunocompromised - keeps outside air away from pt
