A client is diagnosed with active tuberculosis and is started on medications. The nurse is aware that which parameter best indicates that the prescribed therapy has been effective? The client has:
a negative sputum culture.
decreased hemoptysis.
an improved chest x-ray.
a decreased rate of coughing.
The Correct Answer is A
Choice A Reason
A negative sputum culture is the most definitive indicator of the effectiveness of tuberculosis (TB) treatment. When a patient with active TB starts on medication, the goal is to eliminate the Mycobacterium tuberculosis bacteria from the body. A sputum culture that turns from positive to negative signifies that the bacteria have been eradicated from the respiratory secretions, indicating successful treatment.
Choice B Reason
While decreased hemoptysis (coughing up blood) is a positive sign and indicates an improvement in the patient's condition, it is not the most reliable parameter for determining the effectiveness of TB therapy. Hemoptysis may decrease as the patient's overall condition improves, but it does not confirm the eradication of the TB bacteria.
Choice C Reason
An improved chest x-ray can show a reduction in the lesions caused by TB, which is a good sign of recovery. However, chest x-rays cannot confirm whether the TB bacteria have been completely eliminated. They are more of a supportive indicator rather than a definitive one.
Choice D Reason
A decreased rate of coughing is another sign that the patient is responding to treatment, as coughing is a primary symptom of TB. However, similar to hemoptysis and chest x-ray improvements, a decrease in coughing does not necessarily mean that the TB bacteria have been fully cleared from the body.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Maintaining normal salt and fluid intake is crucial for patients on lithium. Lithium can affect sodium levels in the body, and consistent sodium intake helps to keep lithium levels stable. Patients should be advised to drink adequate fluids to prevent dehydration but avoid excessive fluid intake, which could alter lithium levels and potentially lead to toxicity¹²³⁴.
Choice B Reason:
Drinking twice the usual amount of fluids daily is not recommended for patients on lithium unless directed by a healthcare provider. Excessive fluid intake can lead to changes in lithium levels and increase the risk of lithium toxicity. Patients should aim to consume a sufficient amount of fluids to stay hydrated, especially in situations that may lead to dehydration, such as during hot weather or illness.
Choice C Reason:
Avoiding aged cheese, processed meats, and red wine is generally advised for patients taking monoamine oxidase inhibitors (MAOIs), not lithium. These foods can contain high levels of tyramine, which can interact with MAOIs. However, there are no specific dietary restrictions for lithium regarding these foods. Patients should follow a balanced diet and consult with their healthcare provider for personalized dietary advice.
Choice D Reason:
Doubling the lithium dose if diarrhea or vomiting occurs is incorrect and potentially dangerous. If a patient experiences diarrhea or vomiting, it can affect lithium absorption and increase the risk of toxicity. Instead, patients should contact their healthcare provider for guidance. Adjustments to the medication regimen should only be made under medical supervision.
Correct Answer is B
Explanation
Choice A Reason:
Weekly aerobic exercise at a gym is generally beneficial for joint health and is not a predisposing factor for osteoarthritis. Regular physical activity helps maintain joint flexibility, muscle strength, and overall health, which can actually help prevent the development of osteoarthritis.
Choice B Reason:
Vitamin D deficiency has been associated with an increased risk of osteoarthritis. Vitamin D is essential for bone health, and a deficiency can lead to changes in bone structure and strength, potentially contributing to the development and progression of osteoarthritis.
Choice C Reason:
A weight of less than 60 kg does not typically predispose an individual to osteoarthritis. In fact, maintaining a healthy weight can reduce the risk of developing osteoarthritis, as excess body weight can increase the stress on joints.
Choice D Reason:
Trauma can lead to post-traumatic osteoarthritis, which is a form of osteoarthritis that develops after an injury to a joint. Traumatic injuries can damage the cartilage and bone, leading to degenerative changes and osteoarthritis.
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