the nurse provides care for a client after a total gastrectomy. the nurse is most concerned if which observation is made?
a. the nasogastric tube is attached to low continuous suctioning
b. the client's urine output during the previous 8 hours was 500 mL
c. the client asks for oral pain medication
d. the client performs coughing and deep breathing every two hours and is appropriately using the incentive spirometer