title: Ask the doctor.  After my mother fainted several times, her doctor referred her to a cardiologist.  What might be wrong with her heart, and what tests should she expect?
authors.forename: Deepak L
authors.initials: DL
authors.lastname: Bhatt
mesh_terms: D001145:Arrhythmias, Cardiac / Q000150:complications* / Q000175:diagnosis*; D004562:Electrocardiography; D015716:Electrocardiography, Ambulatory; D005080:Exercise Test; D005260:Female; D006801:Humans; D012017:Referral and Consultation; D013575:Syncope / Q000209:etiology*