For a closer look at your throat, larynx, and other nearby tissues, your doctor may do direct pharyngoscopy and laryngoscopy. During this test, the doctor puts a lighted tube (laryngoscope) into your throat. Direct laryngoscopy is often done in the hospital. You'll be given general anesthesia to help you relax and sleep through the test. The doctor may use a small flexible laryngoscope that can pass through your nose into your throat. This is done using a sprayed local anesthetic to numb your nose and throat.