 15. Present contraindications to propranolol, that include: bronchial asthma, prolonged fasting, acidosis, hypotension systolic blood pressure less than 90 mmHg, diastolic blood pressure less than 60 mmHg, severe peripheral arterial circulatory disturbance, cardiogenic shock, bradycardia, Prinzmetals angina, uncontrolled heart failure, second or third degree heart block, untreated phaeochromocytoma, sick sinus syndrome. 