| Test | University Hospital Tube |
|---|---|
| Crystals | Plain Red Top (no additives) |
| Protein, Glucose | |
| 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.