The correct posture of the treatment tray is correct.

The correct posture of the treatment tray is to hold the middle of the square tray with both hands and hold the tray with the palm of your hand.

Complete the terminal treatment tray based on the standing posture and walking information. When the endplate is stationary, the nurse keeps the upper arm close to the trunk, the elbow joint is 90 degrees, and the forearm is horizontal on the basis of basic standing posture.

Hold your hands on both sides of the square board, drag things with your fingers, keep your elbows as close to your waist as possible, make your forearms and upper arms at 90 degrees, keep your hands flat, and keep them steady during taking, putting and lifting. The treatment tray should not touch the nurse's uniform.