A 21-year-old college student is brought to the emergency department by his roommate after getting high on LSD after receiving a poor grade on a final examination. Physical examination by the triage nurse is performed. Which of the following findings would be expected in this patient?

A 21-year-old college student is brought to the emergency department by his roommate after getting high on LSD after receiving a poor grade on a final examination. Physical examination by the triage nurse is performed. Which of the following findings would be expected in this patient?

A 26-year-old man complains of tremors, tachycardia, and diaphoresis when speaking in public. He has started a new job that requires him to give frequent presentations to large audiences and is worried he would not be able to work effectively. His physician prescribes propranolol. How will propranolol help with this patient's anxiety?

Regarding differences between the sympathetic and parasympathetic nervous systems in a healthy 29-year-old graduate student athlete, which of the following is a feature of the sympathetic nervous system?

Which of the following changes occur at the neurotransmitter/synaptic space when an excitatory postsynaptic potential is generated?

A 19-year-old man is brought to the emergency department after being found by his roommate to have snorted cocaine several times in the past few days, the last time being 10 h previously. He was given a drug that sedated him, and he fell asleep. The drug that was used to counter this patient's apparent cocaine withdrawal was very likely which of the following?