d) You should press the handheld button when you feel your baby move.The nurse should instruct the client to press the handheld button when the fetus moves. This action will mark the fetal monitor tracing with the client's reports of fetal movement. This will assist in the interpretation of the nonstress test to determine if it is reactive or nonreactive.The nurse should instruct the client that the nonstress will take approximately 20 to 30 min, but more time might be required if the fetus is in a sleep state when the testing begins.The client is not required to be NPO before or during the procedure. The nurse can suggest the client drink orange juice to increase her blood glucose level which will stimulate fetal movements.