Critical Seriousness - Abnormal Heart Rhythm - Conduction Disorder of the Heart is a Life Threatening Side Effect of Adenosine Critical Seriousness - Atrial Fibrillation is a Life Threatening Side Effect of Adenosine Critical Seriousness - Blurred Vision is a Life Threatening Side Effect of Adenosine Critical Seriousness - Bronchospasm - Bronchospastic Pulmonary Disease is a Life Threatening Side Effect of Adenosine Critical Seriousness - Chest Pain is a Life Threatening Side Effect of Adenosine Critical Seriousness - Feeling of Throat Tightness - Throat Constriction is a Life Threatening Side Effect of Adenosine Critical Seriousness - Heart Block is a Life Threatening Side Effect of Adenosine Critical Seriousness - High Blood Pressure - Hypertension is a Life Threatening Side Effect of Adenosine Critical Seriousness - Lung Failure causing Loss of Breath - Respiratory Insufficiency is a Life Threatening Side Effect of Adenosine Critical Seriousness - Premature Atrial Heartbeats - Premature Atrial Contractions is a Life Threatening Side Effect of Adenosine Critical Seriousness - Seizures - Seizure Disorder is a Life Threatening Side Effect of Adenosine Critical Seriousness - Sinus Bradycardia is a Life Threatening Side Effect of Adenosine Critical Seriousness - Sinus Tachycardia is a Life Threatening Side Effect of Adenosine Critical Seriousness - Slow Heartbeat - Bradycardia is a Life Threatening Side Effect of Adenosine Critical Seriousness - Supraventricular Cardiac Arrhythmia - Supraventricular Arrhythmias is a Life Threatening Side Effect of Adenosine Critical Seriousness - Trouble Breathing - Dyspnea is a Life Threatening Side Effect of Adenosine Critical Seriousness - Ventricular Premature Beats is a Life Threatening Side Effect of Adenosine Critical Seriousness - Very Rapid Heartbeat - Torsades de Pointes - Torsades de Pointes is a Life Threatening Side Effect of Adenosine |