100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Microbiology Csmls Prep Questions And Answers With Verified Solutions Already Passed!!!(GRADED A+) $15.49   Add to cart
Quickly navigate to
Preview
  2.  
  3. CSMLS
  4.  
  5. CSMLS

Exam (elaborations)

Microbiology Csmls Prep Questions And Answers With Verified Solutions Already Passed!!!(GRADED A+)
 7 views  0 purchase
  • Course
  • CSMLS
  • Institution
  • CSMLS

Microbiology Csmls Prep Questions And Answers With Verified Solutions Already Passed!!!(GRADED A+)

Preview 4 out of 81  pages

Document information

  • September 28, 2024
  • 81
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • microbiology csmls prep questions and answers with
  • if there is no zone of inhibition what do you rec
  • what causes sharp irregular zones around the sensi
  • susceptible vs intermediate vs resistant

Written for

  • CSMLS
  • CSMLS

Seller

avatar-seller
classhub

Reviews received

Content preview

Microbiology Csmls Prep Questions And
Answers With Verified Solutions Already
Passed!!!(GRADED A+)
if there is no zone of inhibition, what do you record? - ANSWER✔✔ 6mm
because that accounts for the disc


what causes sharp irregular zones around the sensitivity discs? - ANSWER✔✔
beta-lactam antibiotics


- indicates that beta-lactamase production by the bacteria and should be interpreted
as resistant


susceptible vs intermediate vs resistant - ANSWER✔✔ - susceptible = susceptible
to action of the antimicrobials and is stopped or killed by it


- intermediate = used for certain drug combinations that are difficult to test or
produce results of certainty


- resistant = resistant to the action of antimicrobial and keeps growing in its
presence


QC for susceptibility tests - ANSWER✔✔ - each time new discs or panels are
received
- each time tests are performed (once a week)
- organisms are staph aureus, E.coli, pseudo, enterococcus

,how should antimicrobial discs be stored? - ANSWER✔✔ - long term = frozen at -
20C
- working supply in 4C


MRSA conditions - ANSWER✔✔ - addition of NaCl
- 30-35C (lower temp is better)
- displays trailing on disc diffusion methods
- healthcare workers are screened for it
- use oxacillin screen test


Haemophilus test medium (HTM) is supplemented with - ANSWER✔✔ - bovine
hematin
- yeast extract
- NAD
- thymidine phosphorylase


E-test is beneficial for using it on - ANSWER✔✔ - anaerobes
- fastidious bacteria


E-test results interpretation: low MIC and high MIC - ANSWER✔✔ low MIC -
sensitive


high MIC - resistant


Staphylococcus aureus characteristics - ANSWER✔✔ - double zone of beta
hemolysis

,- creamy yellow color from lipochrome @48H
- ferments mannitol (yellow)
- catalase positive
- nitrate positive
- slide or TUBE coagulase positive


MSA media (mannitol salt agar) - ANSWER✔✔ - 7.5% NaCl
- differential = mannitol and phenol red
- if it ferments mannitol it will be yellow, if it does not then it will be red
- staph aureus ferments (yellow)


MRSA oxacillin screen test - ANSWER✔✔ - 6ug oxacillin
- 4% NaCl
- any growth on plate = resistant


slide coagulase vs tube coagulase - ANSWER✔✔ - slide = bound coagulase


- tube = free coagulase


false negative coagulase tests are commonly from - ANSWER✔✔ weak bacterial
suspensions


gold standard of staph aureus is - ANSWER✔✔ positive tube coagulase

, what is found on the cell wall of S. aureus but not other staph species? -
ANSWER✔✔ Protein A and clumping factor = used in latex reagent methods


thermostable nuclease test is used for - ANSWER✔✔ ID of staph aureus
- food microbiology investigations of food poisoning


staphylococcus saprophyticus ID - ANSWER✔✔ - bright white opaque colonies
- catalase positive
- nitrate positive
- novobiocin resistant


- common UTI


what virulence factors does staphylococcus aureus have? - ANSWER✔✔ -
leucocidin
- hyaluronidase
- staphylokinase (clots)
- hemolysins


_______ is the most common cause of skin, soft tissue and post traumatic
infections - ANSWER✔✔ S. aureus


three diseases caused by S. aureus exotoxins - ANSWER✔✔ 1) food poisoning -
heat stable enterotoxin (fast)
2) toxic shock syndrome - tampons
3) scalded skin syndrome - rash & desquamation of skin

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 classhub. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $15.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

72042 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$15.49
  • (0)
  Add to cart