An adult exposed to tuberculosis is scheduled to begin prophylactic treatment with isoniazid. Which information is most important for the nurse to note before administering the initial dose?
Conversion of the client's PPD test from negative to positive
History of intravenous drug abuse
Current diagnosis of hepatitis B
Length of time of the exposure to tuberculosis
The Correct Answer is C
Choice A reason: Conversion of the client's PPD test from negative to positive is not the most important information for the nurse to note, as this is an expected finding for a client who has been exposed to tuberculosis and does not affect the administration of isoniazid. This is a distractor choice.
Choice B reason: History of intravenous drug abuse is not the most important information for the nurse to note, as this is not directly related to the use of isoniazid and does not contraindicate its administration. This is another distractor choice.
Choice C reason: Current diagnosis of hepatitis B is the most important information for the nurse to note, as this can increase the risk of hepatotoxicity and liver damage from isoniazid, which requires close monitoring and possible dose adjustment. Therefore, this is the correct choice.

Choice D reason: Length of time of the exposure to tuberculosis is not the most important information for the nurse to note, as this does not influence the dosage or frequency of isoniazid and does not indicate any complication or adverse reaction. This is another distractor choice.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Increasing oral fluids may help with hydration, but it will not reduce skin flushing caused by lisinopril. Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor that dilates blood vessels and lowers blood pressure. Flushing occurs due to increased blood flow to the skin.
Choice B reason: Nitroglycerin is a vasodilator that relaxes smooth muscle in blood vessels and reduces chest pain caused by angina. It is not indicated for skin flushing caused by lisinopril. Moreover, nitroglycerin can lower blood pressure further and cause hypotension, headache, dizziness, and fainting.
Choice C reason: Going to an emergency department is not necessary for skin flushing caused by lisinopril. Flushing is not a sign of an allergic reaction or anaphylaxis, which would require immediate medical attention. Flushing is also not a symptom of a heart attack or stroke, which would present with other signs such as chest pain, shortness of breath, arm numbness, or slurred speech.
Choice D reason: Reassuring the client that facial flushing is a common side effect of lisinopril is the best action for the nurse to take. Flushing is not harmful or dangerous, and it usually subsides within a few hours. The nurse should explain the mechanism of action of lisinopril and its benefits for lowering blood pressure and preventing angina. The nurse should also advise the client to monitor his blood pressure regularly and report any signs of hypotension, such as dizziness, lightheadedness, or fainting.
Correct Answer is C
Explanation
Choice A reason: Monitoring indwelling urinary catheter and measure strict intake and output is not an action that the nurse should immediately take, as this is not relevant or urgent for a client who may have had a stroke. This is a distractor choice.
Choice B reason: Keeping the bed in the lowest position and initiating seizure and fall precautions is not an action that the nurse should immediately take, as this is a preventive measure that does not address the acute problem of impaired cerebral perfusion. This is another distractor choice.
Choice C reason: Starting two large bore IV catheters and reviewing inclusion criteria for IV fibrinolytic therapy is an action that the nurse should immediately take, as this can prepare the client for potential administration of tissue plasminogen activator (tPA), which can dissolve blood clots and restore blood flow to the brain if given within 4.5 hours of stroke onset. Therefore, this is the correct choice.
Choice D reason: Maintaining elevated positioning of the dependent joints on affected side is not an action that the nurse should immediately take, as this can worsen edema and impair circulation in the affected limbs. The recommended position is to keep them at or below heart level. This is another distractor choice.
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