Culture medium |
24 hours of culture |
48 hours of culture |
1 week of culture |
2 weeks of culture |
4-6 weeks of culture |
Blood agar plate |
Normal flora |
Normal flora |
dried out and useless |
dried out and useless |
dried out and useless |
Chocolate agar plate |
Normal flora |
Normal flora |
dried out and useless |
dried out and useless |
dried out and useless |
MacConkey agar plate |
No growth |
No growth |
dried out and useless |
dried out and useless |
dried out and useless |
Lowenstein Jensen agar slant |
No growth |
No growth |
No growth |
No growth |
Small dry crumbly looking colonies;
Did not stain by Gram Stain; Acid-fast
positive rods |
Sabouraud Dextrose agar plate |
No growth |
No growth |
dried out and useless |
dried out and useless |
dried out and useless |
BACTEC radiometric broth system |
No growth |
No growth |
No growth |
Growth detected. Did not Gram Stain; Acid-fast
positive rods |
No need to go any further. |