Diagnosis:

1.  Diagnosis of the casualty involves considering the history, symptoms and signs.

2.  History is the information as to how the accident or illness occurred.

3.  This may be obtained either from the casualty (if conscious) or from witnesses.

4.  Symptoms are the sensations of the casualty such as shivering, feeling of cold, fainting, vomiting, thirst and pain.

5.  Signs are any variations from normal condition of the body such as bleeding, swelling, deformity and congestion.

6.  In a casualty, symptoms and signs are quite helpful in diagnosis.