Lecture 38 - Clinical symposium in Respiratory diseases Flashcards
1
Q
Gram positive stains
A
purple
2
Q
gram negative stains
A
pink
3
Q
Gram positive cocci in pairs and chains are most likely
A
Streptococcus
4
Q
Gram positive rod most likely
A
Bacillus species
5
Q
Gram positive cocci in clusters are
A
Staphylococcus
6
Q
Gram negative rod
A
Fusiform
7
Q
Gram negative shaped
A
Fusobacterium
8
Q
Gram negative bacillus
A
Most likely enteric
9
Q
What is lights criteria
A
Fluid protein / Serum protein >0.5
Fluid LDH > 0.6x upper limit of normal for serum
Fluid LDH / Serum LDH >0.6
10
Q
Pleural fluid microbiology
A
Microscopy
- Gram stain: No organisms seen
- WBC : Polymorphs seen
No growth after 48h
Acid and alcohol smear -ve
11
Q
Pleural fluid cytology
A
Microscopically sample seen to contain: abundant neutrophils reactive mesothelial cells, and cellular debris
No malignant cells are seen
