A nurse is reinforcing teaching with a client who has tuberculosis (TB) and a prescription for isoniazid. Which of the following instructions should the nurse include?

Choice A reason: Maintaining the client's head of the bed at 20% is an incorrect action, because the head of the bed should be elevated at least 30% to prevent aspiration of the feeding.

Choice B reason: Monitoring the client’s blood glucose level is a correct action, because enteral feedings can affect the blood glucose level and the client may need insulin adjustments.

Choice C reason: Flushing the enteral feeding tube with 10 mL of cool water after each medication is an incorrect action, because cool water can cause cramping and nausea. The nurse should use warm water to flush the tube and use at least 30 mL of water to prevent clogging.

Choice D reason: Obtaining an x-ray after beginning the feeding is an incorrect action, because an x-ray should be obtained before starting the feeding to confirm the placement of the tube.

Choice A reason: Unilateral weakness is an incorrect finding, because it is more indicative of a stroke or a brain tumor than encephalitis. Encephalitis is an inflammation of the brain that can cause neurological symptoms, but they are usually bilateral and symmetrical.

Choice B reason: Stiff neck is a correct finding, because it is a sign of meningeal irritation, which can occur in encephalitis due to the involvement of the meninges (the membranes that cover the brain and spinal cord).

Choice C reason: Photophobia is a correct finding, because it is another sign of meningeal irritation, which can cause sensitivity to light and sound.

Choice D reason: Epigastric pain is an incorrect finding, because it is not related to encephalitis. Epigastric pain is more likely to be caused by a gastrointestinal disorder, such as gastritis or peptic ulcer.

Choice E reason: Lethargy is a correct finding, because it is a sign of altered mental status, which can occur in encephalitis due to the damage to the brain tissue.