Heat Illness Diagnosis Severity Index (HISI) Medical Algorithm

Are you evaluating an athlete who is in a hot environment?

Yes

Enter from 0 (none) to 10 (extreme) for each symptom

Feeling tired (enter from 0 to 10)

Swelling (enter from 0 to 10)

Cramps (enter from 0 to 10)

Nausea (enter from 0 to 10)

Dizziness (enter from 0 to 10)

Thirst (enter from 0 to 10)

Vomiting (enter from 0 to 10)

Confusion (enter from 0 to 10)

Muscle weakness (enter from 0 to 10)

Sensation of heat over head and neck (enter from 0 to 10)

Chills (enter from 0 to 10)

Stop sweating (enter from 0 to 10)

Feeling lightheaded (enter from 0 to 10)

Data complete?

Evaluation appropriate?

HISI

Number of symptoms rated severe to extreme

Caution: A qualified health practitioner should verify all results.
Keep patient data confidential and comply with all legal requirements.

Heat Illness Severity Index (HISI)