Contrast of Buffered Vs. Unbuffered Lidocaine in Bone Marrow Biopsies

Exclusion Criteria

• •Pregnant or Lactating women.
• •Patients with allergies to local anesthetics.
• •Patients requiring a unilateral bone marrow biopsy.
• •Patients that cannot lie flat in either the supine or prone position.
• •Patients that have used any of the following: narcotics, non-narcotic analgesia or an anti-anxiolytic medication on the same calendar day as the scheduled procedure. These medications will not be given to the participant at any time before or during the procedure.
• •Patients on long-acting narcotic medication.
• •Patients with neuropathy in the posterior iliac crest area
• •Patients with a platelet count less than 20,000.
• •Patients who are cognitively impaired or unable to self-report pain using the VAS.
• •Patients with known bone metastasis.