A nurse is caring for a client who has a history of angina. Exhibits Which of the following findings require follow-up by the nurse? Select all that apply.

A. Blood pressure: A significant drop from 118/76 mmHg to 88/56 mmHg indicates hypotension, which can compromise perfusion. This requires urgent follow-up because it may reflect cardiogenic shock or myocardial infarction complications. B. Anxiety: Anxiety is a common response to chest pain and shortness of breath. While it should be acknowledged, it is not the priority compared to hemodynamic instability and hypoxemia. C. Oxygen saturation: The drop from 98% to 88% on room air shows hypoxemia. This requires immediate follow-up, as low oxygen levels increase cardiac workload and worsen myocardial ischemia. D. Breath sounds: Bilateral breath sounds remain clear and unchanged between assessments. This finding does not require follow-up since there is no evidence of pulmonary congestion or abnormal sounds. E. Irregular heart rate: The shift from a regular rate of 78 bpm to an irregular, rapid rate of 128 bpm signals a new arrhythmia. This significantly impacts cardiac output and requires immediate follow-up. F. Chest tightness: Chest pain radiating to the jaw and unrelieved by rest suggests unstable angina or myocardial infarction. This is a critical symptom requiring urgent evaluation and intervention.