Clinical Microbiology Exam 1

no hemolysis evident on blood agar plate

Which of these media DOES NOT require further QC testing due to its complexity or history of failure?

In what agar would you be able to see a pink halo?

____ agents are those that generally do not cause infection in healthy human adults.

Ability of a test to avoid reacting to other substances than analyte of interest

If given a critical specimen and urine simultaneously, you can refrigerate the urine specimen and save for later

Colony morphology characteristics are shared amongst all species of a genus

Catabolism is the release of energy from the breakdown of complex molecules into simpler ones

This cleaning agent disrupts cell membrane integrity and denatures proteins

Analytic stage is solely the testing of the specimen

What agar would you use to perform a Kirby-Bauer test?

A scientist can identify bacteria solely on colony morphology characteristics

Capnophilic organisms require an atmosphere enriched with extra ____

involves applying different chemicals to separate, sterile filter paper disks

What type of media allows for visualization of metabolic differences between groups or species of bacteria?

In this surveillance program, all infection are recorded and analyzed

Agents that have the potential to cause lethal infections by inhalation.

Growth phase where viable cells are equal to nonviable cells

What organization emphasizes that the performance quality of the lab is everyone's responsibility?

Which of the following statements about ATP is in aerobic respiration is FALSE?

This biochemical pathway is used by Pseudomonas

Prions are the most resistance to cleaning agents

Surveillance is defined as:

Like penicillin, which of the following are natural antibotics

Growth phase where nonviable cells exceed the number of viable cells

This cleaning agent binds to sulfur-containing amino acids to inhibit enzyme activity

Agents that are typically exotic and are the most dangerous and often fatal.

The Center for Medicare and Medicaid Services determines approved Proficiency Testing

Proficiency testing samples should be processed, handled, and analyzed the same as patient samples

Kirby-Bauer test can apply to anaerobes

What characteristic of elevation shows a raised edge and depressed center?

Agents typically "indigenous" and pose moderate risk to healthcare workers and community

What type of media contains additives that inhibit growth of undesired organisms?

____ is used as a simple stain and can be used as a counterstain in acid-fast staining

When an unsuccessful attempt of proficiency testing occurs, the TJC will terminate the tech responsible for the mistakes

All of these are characteristics of a gram POSITIVE cell wall except:

All bacteria have a relatively similar generation time

Number of new cases of a disease over a period of time by the at-risk population

Regardless of the immune status of the patient, life-threatening infections require the use of a:

Uracil is a pyrimadine

MacConkey agar can be used as a differential and selective media

Chocolate and blood agars are examples of:

All of the following are characteristics of fermentation except:

Flash method of pasteurization uses higher temperatures and less time than the batch method

Specimen transportation and the delivery of results are both examples of the post-analytic phase

This biochemical pathway is used by lactobacilli

A bacteria that only growd on plates incubated in the absence of oxygen would be considered

These are characteristics you can observe to view a bacteria's phenotype except:

Kills microbial vegatative forms except for endospores

This cleaning agent physically removes a microbe from a surface

Which of these are acute care infections?

Sensitivity and specificity of tests ____ ; The prevalence, PPV, and NPV ____

A 0.5 MacFarland standard is used for a color comparison rather than its level of haziness (turbidity)

Complete clearing of erythrocytes in blood agar plate around and under the colony

Bacilli with tapered, pointed ends are termed:

Elimination of pathogens, except spores, from inanimate objects

Moist heat is more effective than dry heat because it denatures proteins

Partial RBC destruction leading to green discolorization of the media

Which of these specimens require testing priority?

What is an example of a BSL 3 microbe?

Destruction of all forms of life, including bacterial spores

Both Bacillus and Clostridium produce endospores

According to CSLI standards, antimicrobial susceptibility QC should be conducted for a consecutive 20-30 days

The following specimens must be rejected except:

Sterilizes and kills endospores through moist heat and pressure

Removal of soil or organic material from instruments or equipment

Bacteria that grow best at 10-20°

What type of media contains added growth factors to assist the growth of fastidious organisms?

Bacteria must have a carbon, nitrogen, and energy source for growth:

What characteristic of elevation shows a raised edge and bulging center (protruding nipple)?

____ is a fluorochrome that binds to chitin in fungal cell walls

These are all characteristics of prokaryotes except:

This method of DNA exchange occurs when one bacteria uses a sex pilus for plasmid transfer to adjacent bacteria

Gram negative rods typically grow larger colonies than gram positive cocci

Facultative anaerobes can grow with or without oxygen

Boiling is more effective at killing bacteria than autoclaving

Kirby-Bauer test can be performed to distinguish between bacteriostatic and bactericidal tendencies of antibiotics

____ stains are used for bacteria with high lipid and wax content in their cell walls

A ____ structure has two rings and consist of adenine (A) and guanine (G)

Facultative anaerobes are routinely cultered in aerobic conditions

____ can determine whether an actively used solution of disinfectant in a clinical setting is microbially contaminated

Frequency of disease at a designated point in time in a tested population

Aetolerant anaerobes can survive in the presence of oxygen and use it in their metabolism

The records of media QC should be maintained for 2 years