Triage is defined as medical screening of patients to determine their relative priority for treatment. When preparing for triage of patients in a mass disaster, physicians must be aware of the many unique situations and patient conditions. The most frequently used triage methods are sieve and sort—they are the simplest and are mostly used in the field. In hospital conditions, physicians also use more complicated scales: the Glasgow Coma Scale, Injury Severity Score, New Injury Severity Score, Revised Trauma Score, and Trauma Injury Severity Score. All of these scales are used to define the severity of injury as well as to predict patient mortality rates. Besides triage, hospitals in mass disaster settings face resource deficiencies and the lack of highly trained manpower—another important issue when making disaster treatment plans.