The patient should be triaged in "critical", color coded as red. This is because a bomb blast can lead to multiple gross organ damages such as fractures (pelvic fractures most commonly produce the greatest amount of internal hemorrhage which can lead to shock), liver and spleen rupture that can cause hemorrhagic shock, and burns that can predispose the patient to fluid lose and electrolyte imbalance which then, if untreated, will lead to kidney and cardiac compromise.
Other triaging priorities for other patients include urgent and non-urgent cases.