Changes in swallowing mechanics may result in coughing, choking, gagging and nasal regurgitation. There may be a choking or snorting sound as breathing resumes. Other sources of mortality include drowning, starvation, exposure, choking, and infections associated with injury. Cough suppressants can increase the risk of choking. Chest thrusts are performed with the rescuer standing behind the choking victim. Abdominal thrusts are performed with the rescuer standing behind the choking victim. Obstruction (choking) is a life-threatening emergency. Erotic asphyxiation is the use of choking to increase the pleasure in sex. Primary causes of deaths were choking, reflexogenic circulatory collapse and pulmonary oedema. As he is choking her, he is suddenly injected in the neck with a drug. The winner collapsed and died from asphyxia due to choking and aspiration of gastric contents. The primary danger comes from choking, rather than blood loss. Counterfeit toys leave children exposed to potentially toxic chemicals and the risk of choking. It is sometimes misinterpreted as the sound of the person choking to death or gargling. Luay finds her choking violently, and phones emergency services.