<prompt> Which action by a nursing assistant NA when caring for a patient who is pancytopenic indicates a need for the nurse to intervene?The NA assists the patient to use dental floss after eating.The NA makes an oral rinse using 1 teaspoon of salt in a liter of water.The NA adds baking soda to the patients saline oral rinses.The NA puts fluoride toothpaste on the patients toothbrush.  <response>: Use of dental floss is avoided in patients with pancytopenia because of the risk of infection and bleeding. The other actions are appropriate for oral care of a pancytopenic patient. 