Mr. Jоhnsоn, а 68-yeаr-оld mаle, was admitted to the inpatient cardiovascular stepdown unit following a myocardial infarction (MI) and coronary artery bypass graft (CABG) surgery. He has a history of chronic obstructive pulmonary disease (COPD) and is a former smoker. The physical therapy evaluation occurred post-op day (POD) 2. The physical therapist has passed Mr. Johnson to you to treat. Initial Assessment The initial evaluation notes the following: Heart rate: 82 bpm Blood pressure: 128/76 mmHg Oxygen saturation: 93% on 2L O2 nc Respiratory rate: 22 breaths/minute Incision site on chest: healing well, no signs of infection Mild edema in lower extremities Shortness of breath with minimal exertion Bed mobility: Supine to/from sitting with mod assist to upper trunk Transfers: Sit to stand at RW with mod A Gait training: Gait x 25’ with RW and minimal assistance for balance POC: ther ex, bed mobility, transfer training, gait training, stair training, functional activity tolerance and pt education on sternal precautions and cardiac rehab. D/C recommendation: Acute inpatient rehab secondary to pt living alone with 12 steps to enter. Treatment Progress After a week on the inpatient rehabilitation unit, Mr. Johnson's endurance has improved. He can now walk for 5 minutes on level surfaces without significant dyspnea. However, he reports feeling dizzy when transitioning from lying to standing. What should be your next step in addressing Mr. Johnson's dizziness?