Chpt 13 Flashcards

1
Q

Chapter 13

A

DIAGNOSING INFECTIOUS DISEASES

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2
Q

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

A

clinical specimens

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3
Q

three components of specimen quality

A

proper specimen selection

proper specimen collection

proper transport of clinical specimens.

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4
Q

True or false

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

A

False

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

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5
Q

the presence of bacteria in the bloodstream

A

Bacteremia

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6
Q

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

A

Septicemia

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7
Q

Contamination in urine is reduced by collecting a

A

clean-catch,
midstream

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8
Q

Urine culture involves 3 parts

A

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

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9
Q

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

A

colony count

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10
Q

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

A

calibrated loop

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11
Q

Idk formula

A

Colonies x dilution factor = # CFUs/mL

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12
Q

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

A

Meningitis

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13
Q

inflammation or infection of the brain

A

Encephalitis

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14
Q

inflammation or infection of
both the brain and meninges.

A

Meningoencephalitis

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15
Q

CSF is collected by - puncture into a sterile tube

A

Lumbar

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16
Q

True or false

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

17
Q

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

18
Q

are used to determine
whether a patient has
strep throat

A

Routine throat swabs

19
Q

may be
necessary when
Neisseria gonorrhoeae
or Corynebacterium
diphtheriae are
suspected

A

Specific cultures

20
Q

T or F

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

21
Q

T or F

Specimens collected by
swab are not frequently
contaminated with
indigenous microflora

A

False

Specimens collected by
swab are frequently
contaminated with
indigenous microflora

22
Q

is a fastidious, microaerophilic, and
capnophilic bacterium.

A

N. gonorrhoeae

23
Q

should be used to collect GC specimens

A

Dacron,

calcium alginate, or

nontoxic cotton swabs

24
Q

T or F

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

A

False

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

25
If fecal specimens are not processed immediately what species could die
Shigella and salmonella
26
The Lab
Pathology department
27
The pathology department is divided into 2 major divisions:
– Anatomical Pathology – Clinical Pathology
28
Diseased organs, stained tissue sections, and cytology specimens are examined here.
Anatomical Pathology
29
Consists of several laboratories in addition to the Clinical Microbiology Laboratory: Clinical Chemistry, Urinalysis, Hematology/Coagulation, Blood Bank, and Immunology.
Clinical Pathology
30
Responsibility is to assist clinicians in the diagnosis of fungal infections
Mycology Section
31
Assists clinicians in the diagnosis of parasitic dieases
Parasitology Section
32
Assists clinicians in the diagnosis of viral diseases
Virology Section
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
Mycobacteriology Section
34
are identified by the acid-fast staining procedure and by using a combination of growth characteristics
Mycobacterium spp.