Correct Answer: C

Rationale: The most critical information to communicate to the healthcare provider in a patient diagnosed with both HIV and active TB disease is that the patient is receiving antiretroviral therapy for HIV infection. This is crucial because drug interactions can occur between antiretrovirals used to treat HIV infection and medications used to treat TB. By informing the healthcare provider about the antiretroviral therapy, potential interactions can be assessed and managed effectively to optimize patient care. The other data provided, such as the Mantoux test result, chest x-ray findings, and presence of blood-tinged mucus, are important clinical information but are expected in a patient with coexisting HIV and TB and do not directly impact potential drug interactions between antiretrovirals and TB medications.

Correct Answer: A

Rationale: To assess for tactile fremitus, the nurse should use the palms of the hands to assess for vibration when the patient repeats a word or phrase such as '99'. After noting absent fremitus, the nurse should then auscultate the lungs to assess for the presence or absence of breath sounds. Absent fremitus may be noted with conditions like pneumothorax or atelectasis. The vibration is increased in conditions such as pneumonia, lung tumors, thick bronchial secretions, and pleural effusion. Encouraging the patient to turn, cough, and deep breathe is an appropriate intervention for atelectasis, but assessing breath sounds takes priority. Fremitus is decreased if the hand is farther from the lung or the lung is hyperinflated (barrel chest). Palpating the anterior chest for fremitus is less effective due to the presence of large muscles and breast tissue, making auscultation a more appropriate next step.

Correct Answer: D

Rationale: The correct answer is that the patient has an increased serum creatinine level. Dalfampridine should not be given to patients with impaired renal function as it can worsen their condition. Options A, B, and C are unrelated to the administration of dalfampridine. The fact that the patient has relapsing-remitting MS, walks for exercise, or experiences neck pain does not directly impact the decision to administer dalfampridine. However, an increased serum creatinine level is a contraindication for this medication and requires consultation with the healthcare provider to determine the appropriate course of action.

Correct Answer: A

Rationale: The correct answer is 'Yellow-tinged skin.' Yellow-tinged skin is indicative of noninfectious hepatitis, a toxic effect of isoniazid (INH), rifampin, and pyrazinamide. If a patient on TB therapy develops hepatotoxicity, alternative medications will be necessary. Thickening of fingernails and difficulty hearing high-pitched voices are not typical side effects of the medications used in standard TB therapy. Presbycusis, age-related hearing loss, is common in older adults and not a cause for immediate concern. Orange-colored sputum is an expected side effect of rifampin and does not warrant immediate notification to the healthcare provider.

Correct Answer: D

Rationale: The most appropriate response by the nurse in this situation is to gather more information about the patient's concerns and preferences. By asking the patient to share their understanding of the available treatments, the nurse encourages open communication and gains insight into the patient's knowledge and preferences. Option A focuses solely on pain, which may not be the patient's primary concern. Option B assumes negative experiences without exploring the patient's current thoughts. Option C, stating that surgery is the recommended treatment, dismisses the patient's preference and does not address their concerns. Chemotherapy is not the primary treatment for nonsmall cell lung cancer; it may be used for nonresectable tumors or as adjuvant therapy to surgery, making it crucial for the nurse to explore the patient's treatment preferences and understanding.