Knowledge of the type of tumescent technique and the intravenous volume as well as the aspirated volumes is helpful. Monitor the patient for cardiac arrhythmias due to the use of lidocaine and epinephrine. Plasma levels of lidocaine can peak 10 to 12 hours after infiltration when epinephrine is used in the solution (Iverson & Pao, 2008). The patient should be observed for signs of hypovolemia, and fluids should be replaced as indicated. Pain and drainage should be monitored. Any evidence of hypoxia could indicate a serious problem, such as a fat embolus. Some patients have a urinary catheter in place, which helps better assess fluid status.