The following symptoms and complaints may indicate hyperthermia:
- Overheating of the body, but with a normal set point.
Harbingers of heat exhaustion are vigorous redness of the skin, high perspiration with dry mucous membranes and severe headache.
The following symptoms and complaints may indicate heat exhaustion:
- Short-lasting loss of consciousness, which is often announced by dizziness and nausea (nausea) and vomiting.
The following symptoms and complaints may indicate heat stroke:
Leading symptoms
- Severely elevated body temperature (> 41 °C rectally).
- Disturbances of consciousness
- Anxiety
- Delir
- Coma
- Motor restlessness
- Fatigue
- Visual disturbances
- Vertigo (dizziness)
- Warm reddened skin, dry
- Shallow breathing with increased frequency
- Seizure
The following symptoms and complaints may indicate a heat seizure:
- Muscle cramps
- Weakness
- Vertigo (dizziness)
The following symptoms and complaints may indicate heat exhaustion:
- Anuria (maximum 100 ml of urine per day).
- Cephalgia (headache)
- Diarrhea (diarrhea)
- Cramps
- Circulatory insufficiency (circulatory weakness)
- Nausea (nausea) as well as vomiting
- Ringing in the ears
- Psychoneurotic disorders
- Weakness
- Visual disturbances
Symptoms develop over several days (3-5 days).
The following symptoms and complaints may indicate malignant hyperthermia:
- Nonspecific sign is tachycardia (heartbeat too fast: > 100 beats per minute), followed by hypercapnia (increased carbon dioxide in the blood; capnometry as monitoring for early diagnosis!).
- Hypoxia (lack of oxygen supply to the tissue) → cyanosis (bluish discoloration of skin and central mucous membranes, e.g. tongue).
- Muscle rigor
- Metabolic acidosis and hyperkalemia
- Hyperthermia leading to circulatory failure, protein (albumen) denaturation (41.5°C and above), rhabdomyolysis (demise of striated muscle), myoglobinuria (increased excretion of myoglobin by the kidney), and renal failure
- Death
