Weigh the patient/client before a meal using a beam balance with nondetachable weights or a clinical quality electronic scale. Place the measuring device on a hard flat surface and check for zero balance before each measurement. The patient/client should be wearing only light underclothing or a paper examining gown and paper slippers. Shoes and socks should not be worn. The patient/client should stand unassisted and care should be taken to check correct foot placement on the platform of the measuring instrument. Ask the patient/client to look straight ahead, standing relaxed but still. Calibrate the balance or electronic scale with a set of weights regularly throughout the year.