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When a solute penetrates through a membrane by dissolving in the lipid, the permeability is directly proportional to the

Doubling the plate separation of a capacitor:

Doubling membrane thickness of a microporous membrane should:

A 75-year-old patient taking memantine, a NMDA receptor antagonist, for Alzheimer’s disease develops mild headaches and dizziness. Which of the following is the most appropriate next step?  

A 15-year-old high school athlete with generalized anxiety disorder and recently diagnosed ADHD presents to discuss starting stimulant medication. She asks whether she needs special cardiovascular testing before beginning treatment. Which of the following is the most appropriate counseling regarding cardiovascular screening before stimulant initiation?

A 30-year-old man with schizophrenia becomes acutely agitated after missing medication for several days. The ED team chooses IM olanzapine (Zyprexa). Why is this medication frequently used?

An 8-year-old is brought to your clinic for evaluation of attention-deficit/hyperactivity disorder (ADHD). His parents are interested in starting stimulant medication. Before initiating treatment, which baseline assessments should be obtained during the physical examination?

A 34-year-old man with acute psychosis is pacing, shouting, and appears increasingly aggressive in the emergency department. What is the primary goal of treating his agitation?

A 10-year-old child presents with generalized anxiety disorder. The dad asks about the use of benzodiazepines for treatment. Which of the following statements is most accurate based on current evidence regarding benzodiazepine use in pediatric anxiety disorders?

In a recent Gallup poll, telephone interviews were conducted with a random sample of 1,018 U.S. adults.  Of those interviewed, 285 said they would spend less on holiday gifts this year than they did last year.  The margin of error was 0.018.  What confidence level did the pollster use?