RT Book, Section A1 Zimmerman, Franklin H. SR Print(0) ID 1200099490 T1 Preface T2 ECG Core Curriculum YR 2023 FD 2023 PB McGraw Hill Education PP New York, NY SN 9780071785211 LK accesscardiology.mhmedical.com/content.aspx?aid=1200099490 RD 2024/10/12 AB It's 3 a.m. and you're standing at the bedside of a 64-year-old man with chest discomfort. He's short of breath, covered in perspiration, and frightened. His blood pressure is 90/60 mm Hg and his heart rate is 130 beats per minute.