Measure at the same time each day, ideally in the morning after voiding
Explanation: The umbilicus should be used as the starting point for measuring abdominal girth, especially when ascites is present. Measure the girth at the same time each day, ideally after the client voids in the morning. The ideal position is for the client to stand. If the client cannot stand, the supine position is acceptable. The head of bed should be flat unless the client has difficulty breathing.