The main function of the local water department is to provide sanitary water safe for human use

Which of the following BEST defines "intussusception"?

A. An abnormal presence of air or gas within the pleural cavity, which can cause pain, difficult breathing, or lung collapse B. Fibrous bands that form between organs and/or tissues within the abdominal cavity, which most commonly after an injury or during postoperative recovery C. A bacterial infection that causes pneumonia, sinusitis, ear infections, peritonitis, and many other pathologies D. An intestinal condition in which part of the small intestine folds in on itself, thereby creating a telescope-like compression as the walls of the small intestine rub together

You are at the scene of a drive-by shooting in which a 19-year-old man was shot in the chest. Law enforcement personnel are at the scene. The patient is conscious, has an actively bleeding entry wound to his left anterolateral chest, and is breathing with difficulty. You should:

A) provide only the amount of care needed to prevent his condition from deteriorating and quickly move him to the ambulance. B) ask a police officer to stand near you with his weapon drawn as you provide emergency medical treatment to the patient. C) immediately place the patient on a long backboard, quickly move him to the ambulance, and begin treating his injury. D) return to your ambulance and wait there until a law enforcement official advises you that the perpetrator is nowhere to be found.