Can I dive if I suffer from hypertension?

Hypertension or high blood pressure can lead to pulmonary edema while diving and predispose a diver with such condition to a stroke and heart disease which are potentially fatal if they occur while in the water. Diving is permitted for some individuals with mild hypertension, specifically new divers with a diastolic blood pressure reading of less than 90mmHg and advanced divers with a reading of less than 100mmHg. Divers taking beta blocker medications should have no evidence of bronchospasms and be able to achieve 90% of (220 minus age in years) beats per minute. Scuba diving will not be permitted for those individuals that have evidence of end organ damage due to hypertension such as kidney disease or cardiovascular complications.