Deck 10: Collection and Processing of Samples for Microbial Studies

Question 1

The most common type of specimen taken from the eyes is:

A)Corneal scrapings
B)Swabs from the conjunctiva
C)Eyeball aspirates
D)Swabs from the eyelids

Answer 1

B
Swabs taken from the conjunctiva cause the least discomfort and provide adequate samples for most eye cultures.

Question 2

Match the correct definition to the items listed below.
A.Exudate
B.Lumbar puncture
C.MRSA
D.Endoparasite
E.Candle jar
F.Anaerobes
G.Septicemia
Procedure used to obtain cerebral spinal fluid for testing

Answer 2

B

Question 3

Deep wound and superficial wound cultures are collected, transported, and processed in the same way.

Answer 3

False
Deep wound infections are often caused by anaerobic bacteria, while superficial wound infections are not. The two types of specimen collections may require different collection, transportation, and processing procedures.

Question 4

Blockage of drainage through the Eustachian tube is directly related to which type of ear infection?

A)Otitis externa
B)Otitis media
C)Otitis interna
D)Otitis Eustachian

Question 5

In reference to specimens for urine cultures, which of these statements is true?

A)Specimens collected from indwelling catheters are often utilized successfully for urine cultures.
B)24-hour urine collections are appropriate as urine culture specimens.
C)All types of urine specimens are set up in the same way using the same supplies.
D)Urine specimens for cultures should be refrigerated, preserved, or set up for culture within 1 hour of collection.

Question 6

Match the correct definition to the items listed below.
A.Exudate
B.Lumbar puncture
C.MRSA
D.Endoparasite
E.Candle jar
F.Anaerobes
G.Septicemia
A fluid released from the body

Question 7

Match the correct definition to the items listed below.
A.Exudate
B.Lumbar puncture
C.MRSA
D.Endoparasite
E.Candle jar
F.Anaerobes
G.Septicemia
A parasite that lives within the living host

Question 8

Genital swabs are only collected from female patients.

Question 9

Differential culture medium:

A)Includes nutrients that allow for a wide variety of organisms to grow
B)Is always a liquid
C)Allows for various types of bacteria to be identified based on an indicator in the media
D)Prevents the growth of some bacteria while promoting the growth of others

Question 10

Match the correct definition to the items listed below.
A.Exudate
B.Lumbar puncture
C.MRSA
D.Endoparasite
E.Candle jar
F.Anaerobes
G.Septicemia
Acronym used to describe bacteria that are resistant to the methicillin family of antibiotics

Question 11

How many tubes of cerebrospinal fluid are usually collected during a lumbar puncture?

A)One
B)Two
C)Three
D)Four

Question 12

Match the correct definition to the items listed below.
A.Exudate
B.Lumbar puncture
C.MRSA
D.Endoparasite
E.Candle jar
F.Anaerobes
G.Septicemia
The state of having pathogenic microorganisms in the bloodstream

Question 13

Common parasites of the human body include:

A)Streptococcus aureus
B)Helicobacter pylori
C)Enterobius vermicularis
D)Escherichia coli

Question 14

Trichomoniasis is caused by an infection of:

A)Bacteria
B)Viruses
C)Parasites
D)Fungi

Question 15

Match the correct definition to the items listed below.
A.Exudate
B.Lumbar puncture
C.MRSA
D.Endoparasite
E.Candle jar
F.Anaerobes
G.Septicemia
Microorganisms that live without the presence of oxygen

Question 16

If a bacterium is sensitive to a specific antibiotic, then:

A)The antibiotic should not be considered for treatment.
B)The antibiotic may be considered for treatment.
C)This patient is allergic to this antibiotic.
D)The antibiotic should be used to grow this microorganism

Question 17

Nasopharyngeal specimen collection is most often used for this type of culture:

A)Bacterial
B)Viral
C)Fungal
D)Parasitic

Question 18

Why are strep screens often performed in POLs?

A)The results are more accurate than throat culture results.
B)The results are available quickly so that treatment can be initiated quickly if needed.
C)The collection process is much easier for a strep screen than it is for a throat culture.
D)All of the above

Question 19

Match the correct definition to the items listed below.
A.Exudate
B.Lumbar puncture
C.MRSA
D.Endoparasite
E.Candle jar
F.Anaerobes
G.Septicemia
A setup used to encourage growth of bacteria that need decreased amounts of oxygen in their environment

Question 20

Clinically significant stool culture results may include the presence of:

A)Salmonella
B)Staphylococcus
C)Pseudomonas
D)Streptococcus

Question 21

Media should be prepared fresh daily in all laboratory settings.

Question 22

Is a C&S test ordered to detect a pathogenic virus?

Question 23

The visible growth of bacteria on a culture plate may be seen as clumps or _________of growth.

Question 24

Why might a health-care provider order a mini-cath device to be used for collection of a urine specimen for culture?

Question 25

Genital infections may be diagnosed using a combination of ______________-mount examinations, KOH preparations, and bacterial culture results.Short Answer

Question 26

Gram-positive microorganisms appear purple when viewed under the microscope after the Gram stain process has been completed.

Question 27

The procedure to collect blood culture specimens is the same as that used for routine venipuncture.

Question 28

Bacterial culture specimens should be collected before antibiotic treatment is started.

Question 29

No bacterial culture specimens need to be protected from light after collection.

Question 30

MIC is a term used to describe antibiotic sensitivity.Completion
Complete each statement.

Question 31

Strep screens detect the presence of all strains of Streptococcus.