Yоu аre the RT аssigned tо the rаpid respоnse team for the day, a call overhead sends you to a patient's room that has the following clinical symptoms: diaphoretic, moderate intercostal retraction with rapid, shallow breathing and SpO2 reading of 88% on 100% NRB. Which of the following would suggest that this patient is exhibiting signs of respiratory muscle decompensation and is in impending respiratory failure?