Performing a bladder scan involves several steps: 1. Preparation: The patient is usually asked to lie down in a supine position. The nurse explains the procedure to alleviate any anxiety. 2. Application of Gel: A conductive gel is applied to the lower abdomen to enhance the transmission of ultrasound waves. 3. Scanning: The nurse places the ultrasound probe over the bladder area and moves it until a clear image is obtained. The device then calculates the bladder volume. 4. Interpretation: The results are displayed on the device screen, showing the volume of urine in milliliters.