They could suffer from:
-severe burns
-Broken bones
-open wounds
-Cardiac Arrest
-Concussions
-trauma
-even death

Types of injuries and illnesses & Priorities:

Treatment would be provided by a local hospital and anyone on sight that is certified to help out medically.

Patients who are closer to the location of the bomb are in priority over other patients in the hospital. Patients are ALWAYS in priority over employees.