Equipment for Measuring Lower Leg Compartment Pressure Sterile gowns, gloves, and drapes Sterile gauze The Stryker ® system, containing a needle, tubing, and transducer Mild antiseptic cleanser (eg, 2% chlorhexidine) Local anesthetic (eg, 1 or 2% lidocaine) 25-gauge needle About a 3-mL or larger syringe for local anesthetic injection Sterile dressings If procedural sedation is needed, appropriate drugs (eg, propofol, ketamine), pulse oximetry, and capnometry if available Additional Considerations for Measuring Lower Leg Compartment Pressure Sterile technique is required to prevent microbial contamination of the compartment tissues.