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Which of the following is the MAIN component of plasma membranes?

There are several methylphenidate extended release medications. Your patient is not doing well with methylphenidate ER (Concerta) and you are going to transition to methylphenidate HCL (Metadate CD). The parent asks how this is different since it is the same active ingredient. The best response is:

Gel electrophoresis sorts DNA molecules on the basis of their _______________.

A 34-year-old man with Obsessive-Compulsive Disorder has been taking sertraline 50 mg daily for the past 8 weeks with minimal improvement in his symptoms. He continues to spend several hours per day performing checking rituals. He denies significant side effects and is adherent to treatment. Which of the following is the most appropriate next step in pharmacologic management? 

You have a patient on lamotrigine (Lamictal) and they call and mention they have a painful, blistery rash that started right after their last dosage increase. You recognize this as a side effect known to lamotrigine as:

A 58-year-old patient is started on a statin for primary prevention. Which one of the following is the most important instruction regarding when to repeat laboratory tests?

Photosynthesis takes place in two stages:

_______________ refers to all of the chemical reactions that take place inside cells.

When you describe the color of a flower, you are describing its’ _______________

A 5-year-old boy is brought to clinic by his parents due to repetitive body movements. They report that he frequently engages in hand flapping, body rocking, and head nodding, especially when excited or bored. The behaviors have been present since early childhood and occur multiple times per day. The movements have resulted in occasional minor self-injury (e.g., hitting his forehead against his hand), but there is no evidence of developmental regression. He does not appear distressed by the behaviors and can sometimes be distracted from them. He has no history of tics or obsessive thoughts. Which of the following is the most appropriate diagnosis?