Week 5 MS Infectious Disease - Debiel Flashcards
1
Q
Diagnosis? Rapid Onset High fever High HR Altered mental status LOW BP High CRP, ESR, WBC (banded neutrophils)
A
Necrotizing fasciitis
2
Q
What does the WBC measure?
A
Measure the number of leucocytes per MILLILITER of blood
-Normal = 4,500 - 11,000
3
Q
What is ESR?
A
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
Q
What is C-reactive protein?
A
- produced by liver
- normal present in circulation at low levels
- promotes immune system through
- COMPLEMENT CASCADE
5
Q
What organisms can cause necrotizing fasciitis?
A
Strep pyogenes
Clostridium perfringens
6
Q
Organism? Gram + Cocci Catalase - B-hemolytic
A
Strep. Pyogenes
7
Q
Organism? Gram + Bacili Spore forming Obligate anaerobe Non-motile
A
Clostridium perfringens
8
Q
Diagnosis?
Rapid onset
Pain
restricted range of motion
A
Acute infectious Arthritis
9
Q
What organisms can cause Acute infectious Arthritis?
A
Staph. Aureus.
N. gonorrhoeae
10
Q
Organism? Gram - Diplococci Oxidase + Only glucose oxidizer
A
Neisseria gonorrhoeae
11
Q
Diagnosis? Fever High HR Overlying skin warm & red with multiple necrotic-appearing lesions High ESR High CRP High WBC (some bands)
A
Osteomyelitis
12
Q
What organisms can cause osteomyelitis?
A
Staph. Aureus (most common) Salmonella typhii (sickle cella anemia) Pasteurella muitocida (cat bites)
13
Q
Organism? Gram - Bacilli Lactose non-fermenter Oxidase - Produces H2S Motile
A
Salmonella typhii
14
Q
Organism? Gram - Coccobacilli Oxidase + Catalase +
A
Pasteurella multocida
