You just return from lunch and the charge nurse reports that you are getting an admission. The ER nurse calls report five minutes later. Mr. Johnson is a 55 year old African American being admitted to your telemetry unit with complaints of increasing shortness of breath and fatigue. He has a history of hypertension for the past 20 years. He quit smoking 6 months ago. He had a chest x-ray which showed mild atelectasis in bilateral bases and mild cardiomegaly. His VS are 156/98, P 92, R 20, T 97.4. He is in Sinus rhythm, O2 sats low 90’s upper 80’s on room air. ER placed O2 on 2 L/NC, sats increased to 94%. Labs in ER were Troponin 1.3, CBC normal, Lytes normal, BUN 26, and Creat 1.2. The ER nurse has already given the ASA, Nifedipine, and Inderal while waiting for a room to become available. Would this be kidney failure, pneumonia, or CHF? Thank you