Equipment for Thoracentesis Local anesthetic (eg, 10 mL of 1% lidocaine), 25-gauge and 20 - to 22-gauge needles, and 10-mL syringe Antiseptic solution with applicators, drapes, and gloves Thoracentesis needle and plastic catheter 3-way stopcock 30 - to 50-mL syringe Wound dressing materials Bedside table for patient to lean on Appropriate containers for collection of fluid for laboratory tests Collection bags for removal of larger volumes during therapeutic thoracentesis Ultrasound machine Additional Considerations for Thoracentesis Thoracentesis can be safely done at the patient's bedside or in an outpatient setting.