Correct Answer: C

Rationale: The correct answer is C. Daily use of spironolactone for hypertension can increase the risk of hyperkalemia and interact with penicillin, leading to adverse reactions. Choice A is incorrect because the sputum culture showing Streptococcus pneumoniae is an expected finding in a patient with pneumonia and does not increase the risk of an adverse reaction to penicillin. Choice B is incorrect as previous treatment with penicillin does not necessarily increase the risk of an adverse reaction to penicillin if there was no history of allergic reactions. Choice D is also incorrect as a documented allergy to sulfa drugs does not directly increase the risk of an adverse reaction to penicillin.

Correct Answer: D

Rationale: The correct answer is D because fibroids that do not cause symptoms do not necessarily need to be removed unless they pose other health risks. Choice A provides accurate information about the prevalence of fibroids among women of the woman's age group. Choice B correctly describes fibroids as noncancerous tumors. Choice C lists common symptoms associated with fibroids, which is relevant information. However, choice D is incorrect as fibroids that are asymptomatic or not causing problems usually do not require treatment, unless they lead to complications or health risks.

Correct Answer: B

Rationale: The correct teaching for a client prescribed metformin includes monitoring renal function regularly due to the risk of lactic acidosis, especially in clients with impaired kidney function. While taking metformin with meals can reduce gastrointestinal upset, it is not the highest priority teaching point. Avoiding alcohol is generally recommended but not the most critical teaching point in this scenario. Checking blood glucose levels regularly is important for diabetes management but not specifically related to metformin use.

Correct Answer: A

Rationale: A mucopurulent cough and night sweats are hallmark signs of active tuberculosis. These symptoms are key indicators of TB as the combination of a productive cough with night sweats is highly suggestive of the disease. Fatigue and headache (choice B) are nonspecific symptoms that can occur in many conditions and are not specific to TB. Persistent cough and weight gain (choice C) are not typical findings in tuberculosis. Weight loss and fever (choice D) can be present in TB, but the specific combination of mucopurulent cough and night sweats is more specific to the diagnosis.

Correct Answer: A

Rationale: Administering oxygen at 2 L/min via nasal cannula is the nurse's first action when a client with COPD presents with a respiratory rate of 32 breaths per minute and an oxygen saturation of 86%. Oxygen therapy helps improve oxygen saturation in patients with COPD and respiratory distress. While notifying the healthcare provider is important, immediate intervention to improve oxygenation takes priority. Positioning the client in high Fowler's position can also assist with breathing but is not the initial action in this scenario. Suctioning the airway is not indicated unless there are secretions obstructing the airway, which is not mentioned in the scenario.