Micro - Systems (Nosocomial infections, Unimmunized risks, & Bug hints) Flashcards Preview

FA - Microbiology > Micro - Systems (Nosocomial infections, Unimmunized risks, & Bug hints) > Flashcards

Flashcards in Micro - Systems (Nosocomial infections, Unimmunized risks, & Bug hints) Deck (35):
1

Name 8 pathogens causing nosocomial infections.

(1) Candida albicans (2) CMV (3) RSV (4) E. coli (5) Proteus mirabilis (6) HBV (7) Legionella (8) Pseudomonas aeruginosa

2

What is a risk factor for candida albicans nosocomial infection?

Hyperalimentation

3

What is a risk factor for CMV nosocomial infection? What other pathogen causing nosocomial infection has the same risk factor?

Newborn nursery; RSV

4

What is a risk factor for E. coli nosocomial infection? What other pathogen causing nosocomial infection has the same risk factor?

Urinary catheterization; Proteus mirabilis

5

What are the 2 most common causes of nosocomial infection? What kind of infection does each of these pathogens cause?

The 2 most common causes of nosocomial infections are E. coli (UTI) and S. aureus (wound infection)

6

What is a risk factor for HBV nosocomial infection?

Work in renal dialysis unit

7

What is a risk factor for Legionella nosocomial infection?

Water aerosols; Think Legionella when water source is involved

8

What is a risk factor for Pseudomonas aeruginosa infection?

Respiratory therapy equipment; Think: "Presume Pseudomonas "AIRuginoma" when AIR or burns are involved"

9

Name 2 pathogens that affect unimmunized children with a dermatologic presentation. What is their dermatologic presentation in general?

(1) Rubella virus (2) Measles virus; Rash

10

What are the clinical findings due to Rubella virus?

Rash in unimmunized children; Beginning at head and moving down with postauricular lymphadenopathy

11

What are the clinical findings due to Measles virus?

Rash in unimmunized children; Beginning at head and moving down; Rash preceded by cough, coryza, conjuctivitis, and blue-white (Koplik) spots on buccal mucosa

12

Name 2 pathogens that affect unimmunized children with a neurological presentation. What is that neurologic presentation in general?

(1) H. influenzae type B (2) Poliovirus; Meningitis

13

What are the neurologic clinical findings due to H. influenzae type B?

Meningitis in unimmunized children; Microbe colonizes nasopharynx

14

What are the clinical findings due to Poliovirus?

Meningitis in unimmunized children; Can also lead to myalgia and paralysis

15

Name 2 pathogens that affect unimmunized children with a respiratory presentation. What are their respiratory presentations in general?

(1) H. influenzae type B (Epiglottitis) (2) Cornebacterium diphtheriae (Pharyngitis)

16

What are the respiratory clinical findings/labs due to H. influenzae type B?

Epiglottitis in unimmunized children; Fever with dysphagia, drooling, and difficulty breathing due to edematous "cherry red" epiglottis; "thumbprint sign" on X-ray; Also capable of causing epiglottitis in fully immunized children

17

What are the respiratory clinical findings/labs due to Corynebacterium diphtheriae? What is the driving mechanism behind this?

Pharyngitis in unimmunized children; Grayish oropharyngeal exudate ("pseudomembranes" may obstruct airway), Painful throat; Elaborates toxin that causes necrosis in pharynx, cardiac, and CNS tissue

18

What organisms should you associate with an asplenic patient (due to surgical splenectomy or autosplenectomy - e.g., chronic sickle cell anemia)?

Encapsulated microbes, especially SHiN (S. pneumoniae >> H. influenzae type B > N. meningitidis)

19

What organism should you associate with branching rods in oral infection and sulfur granules?

Actinomyces israelii

20

What organisms should you associate with chronic granulomatous disease? What is an especially prominent example?

Catalase (+) microbes, especially S. aureus

21

What organism should you associate with "Currant jelly" sputum?

Klebsiella

22

What organism should you associate with a dog or cat bite?

Pasteurella

23

What organism should you associate with facial nerve palsy?

Borrelia burgdorferi (Lyme disease)

24

What organism should you associate with fungal infection in a diabetic or immunocompromised patient?

Mucor or Rhizopus spp.

25

What organism should you associate with a health care provider, and why?

HBV (from needle stick)

26

What 2 organisms should you associate with neutropenic patients?

Candida albicans (systemic), Aspergillus

27

What organism should you associate with an organ transplant patient?

CMV

28

What organism should you associate with PAS (+)?

Tropheryma whipplei (Whipple disease)

29

What organism should you associate with pediatric infection?

Haemophilus influenzae (including epiglottitis)

30

What organism should you associate with pneumonia in cystic fibrosis or burn infection?

Pseudomonas aeruginosa

31

What organism should you associate with pus, empyema, and/or abscess?

S. aureus

32

What 3 organisms should you associate with a rash on hands and feet?

(1) Coxsackie A virus (2) Treponema pallidum (3) Rickettsia rickettsii

33

What organism should you associate with sepsis/meningitis in newborn?

Group B strep

34

What organism should you associate with a surgical wound?

S. aureus

35

What organism should you associate with a traumatic open wound?

Clostridium perfringens

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