Hyperventilation
Hyperventilation is deep or rapid breathing that can be caused by panic or anxiety.
Signs and symptoms
Symptoms:
Light-headedness
Shortness of breath
Feeling of not getting enough air in
Chest discomfort
Feeling of panic, impending doom
Rapid breathing and palpitations
Blurred vision
Tingling in the lips, fingers and toes
Palpitations
Severe anxiety
Feeling of detachment and not in full control (depersonalisation)
Signs:
Rapid breathing, occasional deep breath, sighing breathing
Rapid pulse
Altered level of consciousness
Hand and finger spasms (fingers and wrists become claw-like, the thumb held stiffly across the palm)
First aid
Be assertive provide calm reassurance, help them regain composure
Instruct them to only breathe in and out through their nose slowly. This is difficult and makes the casualty concentrate on something else
Continue assertive instructions until the casualty slows their breathing or reduces the amount of anxiety and reaction to the incident