[Answered]: A nurse assesses a patient admitted to a cardiac unit

A nurse assesses a patient admitted to a cardiac unit. Which statement alerts the nurse to the possibility of right-sided heart failure? “Tve gained 5 pounds in the last week” “I sleep with 4 plllows at night” “I wake up coughing at night and have to sit up to catch my breath” “My nail beds seem to be a bluish color now”