This soap note is for a 68-year-old male presenting with headaches and high blood pressure readings over the past two weeks. On examination, his blood pressure was elevated at 159/92 mmHg. The main diagnosis is essential (primary) hypertension. Differential diagnoses include renal artery stenosis, chronic kidney disease, and hyperthyroidism. The plan is to order labs and diagnostic tests, start antihypertensive medications, implement non-pharmacologic treatments like diet and exercise changes, and follow-up in one week to manage his blood pressure.