causes of hypertension and tachycardia
Causes of tachycardia. Tachycardia is generally caused by a disruption in the normal electrical impulses that control our heart's pumping action rhythm-the rate at which our heart pumps. The following situations, conditions and illnesses are possible causes: 1  A reaction to certain medications.
Pheochromocytoma is another endocrine cause of hypertension. The classic symptoms include headache, diaphoresis, palpitations, and paroxysmal hypertension. The syndrome can vary depending on the types of catecholamines being produced, the amount and frequency of their release into the circulation, and other factors.