Trauma Severity Scores (ISS, RTS, and TRISS) Calculator

ISS score
Traumatic damage
Head and neck:
Abdomen, pelvis:
Limbs, pelvis:
Skin, subcutaneous tissue:

RTS score


ISS score:

RTS score:

TRISS closed injury: %

TRISS penetrating injury: %

Trauma Severity Scores (ISS, RTS, and TRISS)

The ISS score (Injury Severity Score) and the RST score (Revised Trauma Score) make it possible to determine the severity of a polytraumatized patient. The ISS score takes into account the 3 most serious lesions. The TRISS (Trauma Injury Severity Score) gives a predicted mortality as a percentage. For children under 15, TRISS with penetrating injury is identical to TRISS with blunt trauma.

Trauma severity scoring systems

Trauma severity scoring systems are routinely used to monitor trauma patient outcomes. Yet, the most accurate scoring system remains an elusive target. Trauma severity scales (ISS, NISS, RTS, TRISS, and BIG) in multi-trauma patients and investigate BIG as one of the new trauma severity scoring systems. Methods: The demographic data of the patients, vital signs, injury mechanisms, body regions exposed to trauma, final diagnosis, the injury severity scales-Injury Severity Score (ISS), New Injury Severity Score (NISS), Revised Trauma Score (RTS), international normalized ratio, and Glasgow Coma Scale (BIG), and Trauma and Injury Severity Score (TRISS)-the length of stay in the hospital, and the progress of the patients were examined.