An FNP evaluates a 25‑year‑old man who reports excessive daytime sleepiness for the past 3 months. He frequently falls asleep at work without warning and often does not recall falling asleep. He describes his naps as a sudden, sometimes involuntary urge to sleep. He sleeps an average of 7–8 hours per night. Laboratory studies are normal, including a normal hemoglobin level, and a prior polysomnography showed no evidence of obstructive sleep apnea. The FNP suspects the patient’s symptoms are most likely related to decreased levels of which neurotransmitter/neuropeptide?

The patient has been diagnosed moderate–severe OSA with daytime sleepiness. Which would the nurse practitioner likely choose as first-line treatment? 

Which life period is most vulnerable to persistent stress-linked epigenetic marks affecting hypothalamus-pituitary-adrenal set points?

The main keyboard instruments of the Baroque period were the

A healthy athlete preps for a 400-m sprint. In the liver, the immediate tissue-level change that liberates glucose is:

Which of the following would be a risk factor for restless leg syndrome?

Minutes after a near-miss MVC, a patient’s pulse rises to 128/min and SBP to 168 mmHg. Which organ-level mechanism primarily drives the rapid rise in cardiac output?

The texture of a fugue is

A teen with chronic stress shows amygdala hyperreactivity and weaker PFC control. Which mechanism best links this to epigenetics?

Match each immune cell to its correct type of immunity (innate or adaptive):