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: A client who has BPH and reports dysuria is not the highest priority, because dysuria is a common symptom of BPH and does not indicate an acute complication. The nurse should monitor the client's urinary output and provide comfort measures.

Choice B reason: A client who has ulcerative colitis and reports diarrhea is not the highest priority, because diarrhea is a chronic symptom of ulcerative colitis and does not indicate an acute complication. The nurse should assess the client's hydration status and electrolyte levels and administer medications as prescribed.

Choice C reason: A client who has emphysema and reports dyspnea is the highest priority, because dyspnea is a sign of respiratory distress and can indicate an acute exacerbation of emphysema. The nurse should assess the client's oxygen saturation and respiratory rate and administer oxygen therapy as prescribed.

Choice D reason: A client who has esophageal cancer and reports painful swallowing is not the highest priority, because painful swallowing is a common symptom of esophageal cancer and does not indicate an acute complication. The nurse should provide the client with soft or liquid foods and administer analgesics as prescribed.

Choice A reason: This is an incorrect route, because maternal-fetal transmission of hepatitis A is very rare and occurs only if the mother has acute hepatitis A during the third trimester of pregnancy.

Choice B reason: This is the correct route, because fecal-oral contamination of hepatitis A is the most common mode of transmission. Hepatitis A is a viral infection that affects the liver and is spread through ingestion of contaminated food or water, or contact with infected feces.

Choice C reason: This is an incorrect route, because genital sexual contact of hepatitis A is uncommon and occurs only if there is oral-anal contact with an infected person.

Choice D reason: This is an incorrect route, because blood to blood transmission of hepatitis A is also uncommon and occurs only if there is exposure to infected blood or blood products, such as through needle sharing or transfusion.