A nurse is teaching an adolescent about the appropriate use of his asthma medications. Which of the following medications should the nurse instruct the client to use as needed before exercise?

Choice A reason: Collecting a stool specimen for culture is not the preferred method for diagnosing Enterobius vermicularis, as the pinworm eggs are rarely present in the stool.

Choice B reason: Initiating IV fluids is not a diagnostic measure for Enterobius vermicularis and is not relevant unless the child is dehydrated or requires fluids for another reason.

Choice C reason: The tape test is the standard diagnostic procedure for Enterobius vermicularis. It involves placing clear tape around the anus to collect any eggs that may be present, which are then examined under a microscope.

Choice D reason: Testing the stool for occult blood is not a diagnostic measure for Enterobius vermicularis, as this infection does not typically cause bleeding.

Choice A reason: Positioning a child supine after a tonsillectomy is not recommended due to the risk of respiratory complications. Elevating the head of the bed is preferred to prevent aspiration and facilitate breathing.

Choice B reason: Administering analgesics on a schedule is crucial for effective pain management. It helps maintain consistent pain relief, which is important for encouraging fluid intake and preventing dehydration.

Choice C reason: Encouraging a child to blow their nose gently after a tonsillectomy is not advised because it can increase the risk of bleeding. Instead, gentle mouth breathing and avoiding nose blowing are recommended.

Choice D reason: Offering orange juice after a tonsillectomy is not ideal as acidic beverages can irritate the throat. It's better to provide non-acidic fluids like water or apple juice to keep the child hydrated.