PIRATES Mnemonic for the Causes of Atrial Fibrillation P - Pulmonary Disease, PE I - Ischemic, Idiopathic R - Rheumatic Valvular Disease A - Age, Anemia T - Thyroid Disease E - Elevated BP, Enlarged Atrium, Ethanol S - Sepsis, Sleep Apnea, Surgery #PIRATES #Mnemonic #Atrial #Fibrillation #AFib #Differential #Diagnosis #Cardiology