Suggested Tray for Aspiration and Injection Procedures


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Subject: Suggested Tray for Aspiration and Injection Procedures

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The following instruments and materials can be placed on a nonsterile sheet on the Mayo stand: 
  • Nonsterile gloves

  • Fenestrated drape, if desired

  • Skin preparation materials (see Appendix E) and gauze or swabs to apply them

  • Two 10-mL syringes

  • Needle (20 or 21 gauge, 1 inch long) for drawing up injecting solution

  • Needle (21, 22, or 25 gauge, 1.25 inches long) for aspiration or injection

  • Hemostat for stabilizing the needle when exchanging the medication syringe for the aspiration syringe

  • Lidocaine hydrochloride (1%, without epinephrine) stock bottle (20 mL)

  • Steroid of choice (e.g., triamcinolone [Kenalog] 40-mg/cc multiuse bottle for soft-tissue injection and 0.5 mL [20 mg] of methylprednisolone acetate [Depo-Medrol] and 2 mL of 1% lidocaine without epinephrine for joint injections)

  • Adhesive bandage or sterile bandage

For intra-articular injections and certain soft-tissue injections, it may be preferable to use sterile gloves, drapes, and tray. An assistant should assist in drawing up the injecting solution to allow the practitioner to avoid contamination. 
When using multiuse stock bottles, it is preferable to draw up the lidocaine first and then the steroid solution. This order prevents contamination of the lidocaine with steroid that may be on the needle. Lidocaine on the needle does not significantly alter the steroid solution. 
Gloves, materials, and instruments can be ordered from the following sources: