72. A 66-year-old male presents with bizarre behavior. His daughter states that he did not seem to recognize her and was very rude to her. The patient is conscious and has a patent airway and adequate breathing. You should:

16. Several attempts to adequately open a trauma patient’s airway with the jaw-thrust maneuver have been unsuccessful. You should:

34. A patient with atherosclerotic heart disease experiences chest pain during exertion because:

22. In contrast to viral hepatitis, toxin-induced hepatitis:

52. A 29-year-old female presents with confusion and disorientation. Her respirations are rapid and shallow, and her pulse is 120 beats/min and thready. She is markedly diaphoretic and has an oxygen saturation of 89%. You should:

60. After administering 0.3 mg of epinephrine via auto-injector to a 22-year-old female with an allergic reaction, you note improvement in her breathing and resolution of her hives. However, she is still anxious and tachycardic. You should:

63. A 25-year-old man overdosed on heroin and is unresponsive. His breathing is slow and shallow and he is bradycardic. He has track marks on both arms. The EMT should:

4. A 74-year-old woman complains of heaviness in her chest, nausea, and sweating that suddenly began about an hour ago. She is conscious and alert, but anxious. Her blood pressure is 144/84 mm Hg and her heart rate is 110 beats/min. She took two of her prescribed nitroglycerin (0.4-mg tablets) before your arrival but still feels heaviness in her chest. You should:

28. A 66-year-old woman presents with a stabbing pain in the middle of her chest that radiates to her back. She tells you that the pain suddenly began about 30 minutes ago and has been severe since the onset. She has a history of hypertension, but admits to being noncompliant with her antihypertensive medications. When you assess her, you find that her blood pressure is significantly higher in her left arm than it is in her right arm. What do these signs and symptoms MOST likely indicate?

79. A small compact car was involved in a rollover crash. As you are approaching the vehicle, you note that the roof is significantly collapsed. The patient, a 29-year-old male, is complaining of severe pain in his neck and to the top of his head as well as numbness and tingling in his extremities. Witnesses who removed the patient from the vehicle state that he was wearing his seatbelt. What injury mechanism is MOST likely responsible for this patient’s condition?