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 C
Explanation
Choice A reason: Notifying the healthcare provider is an important action, but not the first one. The nurse should prioritize interventions that address the client's immediate needs, such as oxygenation and circulation.
Choice B reason: Preparing a continuous heparin infusion per protocol is an appropriate action for preventing further clot formation and reducing the risk of recurrent pulmonary embolism, but it is not the first action. The nurse should first stabilize the client's condition before administering anticoagulant therapy.
Choice C reason: This is the correct answer because providing supplemental oxygen is the first action that the nurse should take to improve the client's oxygenation and reduce hypoxia. Pulmonary embolism can cause impaired gas exchange and respiratory distress, which can lead to cardiac arrest and death if not treated promptly.
Choice D reason: Bringing the emergency crash cart to the bedside is a prudent action, but not the first one. The nurse should prepare for possible cardiopulmonary resuscitation (CPR) in case of cardiac arrest, but should first attempt to prevent it by providing oxygen and other supportive measures.
Correct Answer is B
Explanation
Choice A reason: Assigning the UAP to provide care for another client and assume full care of the client is not an action that the nurse should take, as this is unnecessary and inefficient. The UAP can safely assist the client with influenza if they follow proper infection control measures. This is an incorrect choice.
Choice B reason: Reviewing the need for the UAP to wear a face mask while in close contact with the client is an action that the nurse should take, as this can protect the UAP and others from droplet transmission of influenza. This is a standard precaution that should be reinforced by the nurse. Therefore, this is the correct choice.
Choice C reason: Instructing the UAP to apply a fitted respirator mask before entering the client's room is not an action that the nurse should take, as this is not indicated for a client with influenza. A respirator mask is required for airborne transmission, not droplet transmission. This is another incorrect choice.
Choice D reason: Directing the UAP to notify the nurse of any changes in the client's respiratory status is not an action that the nurse should take, as this is a general instruction that does not address the specific issue of infection control. This is another incorrect choice.
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