Only 10% of people with obstructive sleep apnea (OSA) are diagnosed—a dismal statistic considering the consequences. So who’s at risk? Common risk factors include obesity, resistant hypertension, retrognathia, large neck circumference (> 17 inches in men, > 16 inches in women), and history of stroke, atrial fibrillation, nocturnal arrhythmias, heart failure, and pulmonary hypertension. Patients who have risk factors for OSA or who report symptoms should be screened for it, first with a complete sleep history and standardized questionnaire, and then by objective testing if indicated. Read the full article at the Cleveland Clinic Journal of Medicine: http://www.ccjm.org/topics/obesity-weight-management/single-article-page/obstructive-sleep-apnea-who-should-be-tested-and-how/a486844138b1eb76c90923d6d1d1a255.html.