Does gallbladder sludge show up on ultrasound? Yes it does. Gallbladder sludge shows clearly on an abdominal ultrasound scan. You Might Also Like Where can i get an ultrasound in London without doctors referral? 25/01/2022 How much are private abdominal scans? 25/01/2022 Can you see gastritis on an ultrasound? 25/01/2022