|Test||University Hospital Tube|
|Crystals||Plain Red Top (no additives)|
|Gram Stain and Culture|
|Cell Count||Lavender (deep purple, same as CBC tube)|
You can send Bactec bottles for a culture, but if you want a gram stain
you must send a red top.
If you send a red top only, you may be able to get a gram stain and culture, but I'm not sure, I still have to ask.