Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Microbiology Module 2 > PBL: Case 1 Part 1 > Flashcards

PBL: Case 1 Part 1 Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Presence of bacteria in the blood

A

bacteremia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Bacteria passing through (dental, colonoscopy)

A

transient bacteremia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

bacteria seeding from the infected site to another area intermittently (seeding blood) (same organism off and on)

A

intermittent bacteremia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  • Bacteria coming from an intravascular source all of the time (Endocarditis)
A

continous bacteremia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

sepsis goin on inside a site such as an iv catheter, endocarditis

A

primary sepsis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

sepsis going on in an external site such as strep from lungs, UTI, dental surgery, tooth accesses.

A

secondary sepsis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

a contaminant in the blood

A

pseudobacteremia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

bacteremia with organisms multiplying in blood and symptoms showing

A

septicemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

molds and yeast in the blood

A

fungemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

viruses in the blood

A

viremia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

*Systemic inflammatory response syndrome (things must fall in a category?)

A

SIRS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

inflammation of the cardiac lining

A

endocarditis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Sepsis with hypotension

A

septic shock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

when the proteins that control blood clotting become over active and you get massive bleeding out

A

disseminated Intravascular coagulation (DIC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

blood culture system where the instrument checks for positive cultures 24-7

A

continuous monitoring blood culture systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

bacteria secreting _______ are notorious for septic shock

A

endotoxins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

common symptoms and abnormal lab tests that would be associated with possible sepsis

A
  • fever (i or d)
  • shaking
  • chills
  • tachypnea
  • prostration (laying down)
  • blood pressure (i or d)
  • DIC
  • WBC count (i or d)
  • lactic acidosis
  • C-RP (i)
  • procalcitonin (indicator of inflammation on high levels indicative of septicemia)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Proper method of collecting a blood specimen for bacteriologic culture (5 steps)

A
  1. alcohol
  2. iodine based
  3. make circles going out
  4. draw opposite arm that has iv
  5. draw below iv if have to draw from arm with iv
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

correlate the number, timing and volume of specimens with optimal recovery of organisms for meaningful clinical use

A

Number: one set = one aerobic bottle and one anaerobic bottle; no more then 3 sets in 24 hours
Volume: 8-10 for adults and 1-3 for babies;
Timing: take blood before antibiotics or any therapy and right before a fever

20
Q

blood to medium ratio when collecting a blood

A

1:5- 1:10

21
Q

IV catheter related

A

Skin flora:

  • alpha/gama strep
  • CoNS
  • Propionibacterium ances
  • staphylococcus sacchrolyticus
  • Corynebacterium spp.
22
Q

UTI

A
  • E. coli (coming from GI)
23
Q

Subacute endocarditis

A
  • CoNS
  • Veridans strep
  • (s. aureus)
24
Q

acute endocarditis

A
  • staph aureus
  • enterococcus
  • strep pneumo
25
Q

Gunshot to the abdomen

A

GI flora:

  • E. coli
  • Other enterobacteriaceae
  • Enterococcus
  • anaerobes (B. frag, Clostridium, Bifidobacterium, anaerobic coccci, Fusobacterium)
26
Q

Oral surgery

A

Mouth Flora:

  • alpha and gamma streptococci
  • Corynebacterium
  • CoNS
  • non-pathogenic Neisseria app.
  • Prevotella melaninogenica
  • Porphyromonas spp.
  • Prevotella spp.
27
Q

Most common contaminants found in the blood

A

Skin flora:

  • alpha/gama strep
  • CoNS
  • Propionibacterium ances
  • staphylococcus sacchrolyticus
  • Corynebacterium spp.
28
Q

Immunocomporomised

A

anything really; fungi

29
Q

Preexisting pneumonia is the most common cause of septicemia. This pneumonia is caused by….

A

S. pneumo

Klebs. pneumo

30
Q

BACTEC system

A

measuring CO2 by fluorescences

31
Q

BacT/Allert system

A

measuring CO2 by pH change

32
Q

SeptiCheck

A

agar paddle and you inoculate it

33
Q

Lysis Centrifugation

A

(saphonin lysis white blood cells) this is for: intracellular pathogens and fungi, yeasts and molds

34
Q

What is the purpose of sodium polyanetholsulfonate (SPS)

A

anticoagulant

35
Q

What is the purpose of resins (ARD antimicrobial removal devices) in blood culture systems

A

neutralizes antibiotics

36
Q

Blood culture procedure for possible brucellosis

A

Castanata bottle/biphasic bottle: used when takes a long time to grow brucellosis (4 weeks)

37
Q

What approaches could be used to determine whether an isolate is a skin contaminant or a pathogen

A

Collect multiple specimens (3 sets a day max); Skin contaminant: 1 out of all the bottles positive Pathogen: all positive more likely to be a pathogen

38
Q

What one gram POSITIVE organism may be observed on a gram stained smear from a blood culture bottle but would NOT grow on SBA and, with some organisms, not on CHCO

A
  • Anaerobes

- Streptococcus abiotrophia (nutrient varient)

39
Q

What one gram NEGATIVE organism may be observed on a gram stained smear from a blood culture bottle but would NOT grow on SBA and, with some organisms, not on CHCO

A
  • Haemophilus (only grows on chocolate)
  • Campylobacter (charcoal containing media, not blood OR chocolate)
  • anaerobes
40
Q

What media should be set up on a positive blood culture, based on results of a positive smear

A
  • blood
  • choc
  • anaerobe blood
  • do preliminatry susceptibilites, - - GLC for anaerobes
41
Q

What test should you set up if you think you have a strep?

- of these which can you set up directly from the blood?

A
  1. Catalase
  2. NaCl
  3. PYR
  4. Bile Esculin
  5. CAMP
  6. Optochin (bile solubility)
  7. Bacitracin
    Set up from blood: Bile Esculin and optochin
42
Q

If you have a gram positive cocci what should you do first?

A

Gram stain, plate it out, and do optochin right away!

43
Q

What would you do if your gram stain was clumped (staph)

A

Do a coag right away (in 4 hours) FROM BLOOD

44
Q

What would you do if your gram stain was a GNR

A

Vitek or KIA FROM BLOOD

45
Q

We keep blood bottles for how many days?

A

5 days

46
Q

What is the significance if positive on the first day v.s. the fifth day?

A

First day: more likely to be significant

Fifth day: more likely to be a contaminant

47
Q

What is the best way to do a gram stain on a blood?

A

Methanol Fixation because it preserves red cells the best

Microbiology Module 2 (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions