Pharmacological stress is an acceptable replacement for exercise in such cases.
Since exercise is necessary to increase myocardial oxygen demand which in turn increases blood flow, a pharmacologic stress with intravenous persantine has been the most useful alternative. This approach has been approved for clinical use by the Food and Drug Administration. To prevent or diminish any nausea or vomiting. Water or clear liquids in moderation to avoid dehydration is fine. Diabetic patients who are insulin dependent should eat the smallest amount required to take their insulin.