Allergy to lidocaine, fentanyl, midazolam, or propofol (may be used during tumor biopsy or injection)
Patient has a history of hypersensitivity to fentanyl or opioids
Patients who are allergic to or not tolerant of EMLA cream, propofol, or fentanyl will be excluded
History of allergy to fentanyl
Allergy to fentanyl
History of allergy to fentanyl
History of allergy to fentanyl
All patients with transdermal patches (e.g.; fentanyl, Lidoderm, scopolamine, etc)