Arthrocentesis equipment

Betadine or Chlorhexadine
Sterile gloves/drape
Sterile gauze
Lidocaine
Syringes
- Small syringe (6-12cc) for injection of local anesthetic
- Large syringe (one 60cc or two 30cc) for aspiration
Needles
- 18 gauge: knee
- 20 gauge: most other joints
- 25 gauge: MTP joints
- 27 gauge for anesthetic injection
Collection tubes (red top and purple for crystal analysis)
Culture bottles
Consider utilizing U/S to assess for effusion