Week 5 MS Infectious Disease - Debiel Flashcards Preview

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Flashcards in Week 5 MS Infectious Disease - Debiel Deck (14):
1

Diagnosis?
Rapid Onset
High fever
High HR
Altered mental status
LOW BP
High CRP, ESR, WBC (banded neutrophils)

Necrotizing fasciitis

2

What does the WBC measure?

Measure the number of leucocytes per MILLILITER of blood

-Normal = 4,500 - 11,000

3

What is ESR?

Erythrocyte Sedimentation Rate (ESR) = rate at which red blood cells precipitate in a period of 1 hour when anti-coagulated blood is allowed to stand

- seen in osteomyleitis

4

What is C-reactive protein?

-produced by liver
-normal present in circulation at low levels
-promotes immune system through
- COMPLEMENT CASCADE

5

What organisms can cause necrotizing fasciitis?

Strep pyogenes
Clostridium perfringens

6

Organism?
Gram +
Cocci
Catalase -
B-hemolytic

Strep. Pyogenes

7

Organism?
Gram +
Bacili
Spore forming
Obligate anaerobe
Non-motile

Clostridium perfringens

8

Diagnosis?
Rapid onset
Pain
restricted range of motion

Acute infectious Arthritis

9

What organisms can cause Acute infectious Arthritis?

Staph. Aureus.
N. gonorrhoeae

10

Organism?
Gram -
Diplococci
Oxidase +
Only glucose oxidizer

Neisseria gonorrhoeae

11

Diagnosis?
Fever
High HR
Overlying skin warm & red with multiple necrotic-appearing lesions
High ESR
High CRP
High WBC (some bands)

Osteomyelitis

12

What organisms can cause osteomyelitis?

Staph. Aureus (most common)
Salmonella typhii (sickle cella anemia)
Pasteurella muitocida (cat bites)

13

Organism?
Gram -
Bacilli
Lactose non-fermenter
Oxidase -
Produces H2S
Motile

Salmonella typhii

14

Organism?
Gram -
Coccobacilli
Oxidase +
Catalase +

Pasteurella multocida