Exam (elaborations)
PHMY 610 MICRO LAB EXAM 3 QUESTIONS AND ANSWERS
- Course
- Institution
PHMY 610 MICRO LAB EXAM 3 QUESTIONS AND ANSWERS...
[Show more]
Content preview
PHMY 610 MICRO LAB EXAM 3 QUESTIONSAND ANSWERS
how long might it take with traditional blood culture to get the final culture and
susceptibility report
96 hours
when we say get 1 blood culture what does that mean
a set of 2 bottles = 1 blood culture
why are there 2 bottles with 1 blood culture
for aerobic testing and anaerobic testing
what do the blood culture bottles contain and why?
resin that binds any antibiotic that may be present in blood to allow the bacteria
to grow better
why is it important to know when the growth of bacteria begins in culture aka
time to positivity (TTP)
indicates bacterial burden
a high bacterial burden is associated with a _______ TTP (usually)
quicker TTP
what type of bacteria may grow slower than typical organisms and why?
fastidious bacteria since they want specific environments for growth
how long are typical bacterial cultures held for
up to 5 days (95% of bacteria grows in 2 days)
what will gram stain tell us about bacteria
if gram positive or negative and the shape
how long can traditional biochemical analysis for identification of bacteria take
up to 3 days
, what does catalase test distinguish between
streptococci (negative) and staphylococci (positive)
if catalase positive, is it staph. or strep.
staph.
what will be produced if the bacteria is catalase positive
bubbles on the slide
if catalase negative, is it staph. or strep.
strep.
what does coagulase testing distinguish
between the different staphylococci species
what would coagulase positive result mean
staphylococcus aureus
what would coagulase negative result mean
coagulase negative staphylococcus (CoNS)
once growth is detected in the culture bottle, what occurs
sample is plated on agar plates
T/F: if we find out type of bacteria through biochemical pathways or rapid
diagnostics, we DO NOT have to do growth on agar plate
false, still have to get susceptibility
what is the gold standard testing for susceptibility
agar plate
what is there a higher chance of with multiplex PCR
false positive due to common commensals in the body - too sensitive
what might blood culture be contaminated with and be seen with multiplex PCR
coagulase negative staphylococcus
how fast might we get results with multiplex PCR
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller luzlinkuz. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82013 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now