Chpt 13

Question 1

Chapter 13

Answer 1

DIAGNOSING INFECTIOUS DISEASES

Question 2

are used to
diagnose infectious
diseases must be of the
highest possible quality.

Answer 2

clinical specimens

Question 3

three components of specimen quality

Answer 3

proper specimen selection

proper specimen collection

proper transport of clinical specimens.

Question 4

True or false

Although the laboratory provides guidelines, it is the laboratory who collects the specimen who is ultimately responsible for its quality.

Answer 4

False

Although the laboratory provides guidelines, it is the person who collects the specimen who is ultimately responsible for its quality.

Question 5

the presence of bacteria in the bloodstream

Answer 5

Bacteremia

Question 6

serious disease involving chills, fever,
prostration, and the presence of bacteria or their
toxins in the bloodstream

Answer 6

Septicemia

Question 7

Contamination in urine is reduced by collecting a

Answer 7

clean-catch,
midstream

Question 8

Urine culture involves 3 parts

Answer 8

• A colony count (using a calibrated loop)
• Isolation and identification of the pathogen
• Antimicrobial susceptibility testing

Question 9

way of estimating the number of
viable bacteria that are present in a urine specimen.

Answer 9

colony count

Question 10

is used to
inoculate the entire surface of a blood agar plate.

Answer 10

calibrated loop

Question 11

Idk formula

Answer 11

Colonies x dilution factor = # CFUs/mL

Question 12

is inflammation or infection of the
membranes (meninges) that surround the brain and
spinal column

Answer 12

Meningitis

Question 13

inflammation or infection of the brain

Answer 13

Encephalitis

Question 14

inflammation or infection of
both the brain and meninges.

Answer 14

Meningoencephalitis

Question 15

CSF is collected by - puncture into a sterile tube

Answer 15

Lumbar

Question 16

True or false

CSF is considered a STAT (emergency) specimen in the lab

Answer 16

True

Question 17

pus that accumulates deep within the
lungs of a patient with pneumonia, tuberculosis, or
other lower respiratory infection.

Answer 17

Sputum

Question 18

are used to determine
whether a patient has
strep throat

Answer 18

Routine throat swabs

Question 19

may be
necessary when
Neisseria gonorrhoeae
or Corynebacterium
diphtheriae are
suspected

Answer 19

Specific cultures

Question 20

T or F

Whenever possible, a
wound specimen should
be an aspirate (i.e., pus
collected by needle and
syringe), rather than a
swab

Answer 20

T

Question 21

T or F

Specimens collected by
swab are not frequently
contaminated with
indigenous microflora

Answer 21

False

Specimens collected by
swab are frequently
contaminated with
indigenous microflora

Question 22

is a fastidious, microaerophilic, and
capnophilic bacterium.

Answer 22

N. gonorrhoeae

Question 23

should be used to collect GC specimens

Answer 23

Dacron,

calcium alginate, or

nontoxic cotton swabs

Question 24

T or F

Special transport media are available and GC swabs
should always be refrigerated.

Answer 24

False

Special transport media are available and GC swabs
should never be refrigerated.

Question 25

If fecal specimens are not processed immediately what species could die

Answer 25

Shigella and salmonella

Question 26

The Lab

Answer 26

Pathology department

Question 27

The pathology department is divided into 2 major
divisions:

Answer 27

– Anatomical Pathology
– Clinical Pathology

Question 28

Diseased organs, stained tissue sections, and
cytology specimens are examined here.

Answer 28

Anatomical Pathology

Question 29

Consists of several laboratories in addition to the
Clinical Microbiology Laboratory: Clinical Chemistry,
Urinalysis, Hematology/Coagulation, Blood Bank, and Immunology.

Answer 29

Clinical Pathology

Question 30

Responsibility is to assist clinicians in the diagnosis of fungal infections

Answer 30

Mycology Section

Question 31

Assists clinicians in the diagnosis of parasitic dieases

Answer 31

Parasitology Section

Question 32

Assists clinicians in the diagnosis of viral diseases

Answer 32

Virology Section

Question 33

also called the TB Lab)
– Assists clinicians in the diagnosis of tuberculosis (TB)
– Various types of specimens are submitted, but
sputum is the most common type

Answer 33

Mycobacteriology Section

Question 34

are identified by the acid-fast
staining procedure and by using a combination of
growth characteristics

Answer 34

Mycobacterium spp.