Preoperative Prediction of Difficult Laryngoscopy in Diabetic Patients: Importance of the Palm Print Test

"The patient's dominant hand was pressed firmly against a blue ink pad, then onto a white sheet of paper without applying body weight. The palm prints were scored as follows:~* Grade 0: All phalangeal areas visible~* Grade 1: Deficiency in the interphalangeal areas of the 4th and 5th digits~* Grade 2: Deficiency in the interphalangeal areas of the 2nd to 5th digits~* Grade 3: Only the tips of the digits visible The palm print test was scored from 0 to 3. Grades 2 and 3 were considered indicators of difficult intubation."