A 37-year-old woman with a history of asthma is brought to the emergency department suffering from an attack. She takes no medications other than her inhaler for asthma. Her room air pulse oximetry is 86% and her lips are blue. Intravenous epinephrine and intranasal albuterol are given immediately. She becomes unresponsive a few minutes later then becomes pulseless and apneic. She expires despite resuscitative efforts. What is the most likely explanation for her demise?

A 37-year-old woman with a history of asthma is brought to the emergency department suffering from an attack. She takes no medications other than her inhaler for asthma. Her room air pulse oximetry is 86% and her lips are blue. Intravenous epinephrine and intranasal albuterol are given immediately. She becomes unresponsive a few minutes later then becomes pulseless and apneic. She expires despite resuscitative efforts. What is the most likely explanation for her demise?

A 28-year-old woman complains of fatigue that increases throughout the day. At the end of her workday, she says her eyes feel “heavy” and “droopy,” although she does not feel particularly tired. Pyridostigmine is prescribed to treat her myasthenia gravis. Which of the following is a potential side effect of this therapy?

A 27-year-old hospital worker has access to the pharmacy when no other workers are around. He is able to find morphine and inject himself with supratherapeutic dose of morphine. He then collapses and is found dead by coworkers 24 h later. What is the most likely explanation for his death?

A 54-year-old man with seizure disorder and chronic neuropathic pain presents to his primary care physician for follow-up. Review of his laboratory studies indicates elevated liver function tests to four times the normal levels. Which of the following agents would be preferred to manage this patient?

A 21-year-old male college student complains of difficulty falling asleep at night. He asks if there is anything “mild” he can take to help him get to sleep. Which of the following hypnotics mimics an endogenous hormone?