The antitubercular drug isoniazid is prescribed for a client with active tuberculosis. To evaluate the effectiveness of this medication, which outcome can the nurse expect this client to exhibit?
Decreased cough and sputum.
A positive sputum smear and culture.
Decreased appetite and weight loss.
Vertigo and tinnitus.
The Correct Answer is A
Choice A rationale
Isoniazid is an antitubercular drug used to treat active tuberculosis. The effectiveness of this medication is evaluated by observing a decrease in symptoms such as cough and sputum production. This indicates that the infection is being controlled and the bacteria are being eradicated.
Choice B rationale
A positive sputum smear and culture would indicate the presence of active tuberculosis bacteria, suggesting that the treatment is not effective. Therefore, this is not an expected outcome of effective treatment.
Choice C rationale
Decreased appetite and weight loss are not indicators of the effectiveness of tuberculosis treatment. In fact, these symptoms could indicate a worsening of the condition or side effects of the medication.
Choice D rationale
Vertigo and tinnitus are not related to the effectiveness of tuberculosis treatment. These symptoms could be side effects of the medication but do not indicate the success of the treatment.
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View Related questions
Correct Answer is A
Explanation
Choice A rationale
Irregular rapid heart rate (tachycardia) is a serious side effect of albuterol and warrants immediate intervention. Albuterol is a beta-2 agonist that can cause stimulation of beta-1 receptors in the heart, leading to tachycardia and potential arrhythmias.
Choice B rationale
Uncontrollable shaking (tremors) is a common side effect of albuterol due to its stimulation of beta-2 receptors in skeletal muscles. While uncomfortable, it is not typically life-threatening.
Choice C rationale
Increased anxiety can occur with albuterol use due to its stimulant effects on the central nervous system. However, it is not as immediately dangerous as tachycardia.
Choice D rationale
Throat irritation is a minor side effect of albuterol and does not require immediate intervention.
Correct Answer is D
Explanation
Choice A rationale
A chest X-ray or computed tomography (CT) scan can show abnormalities in the lungs that are suggestive of tuberculosis (TB), but they cannot definitively diagnose TB. These imaging tests can reveal changes in the lungs, such as nodules, inflammation, or fluid buildup, which can be caused by TB or other conditions. Therefore, a chest X-ray or CT scan alone is not sufficient to diagnose TB.
Choice B rationale
A hemoccult test on sputum collected from hemoptysis is not a diagnostic test for TB. It is a test for blood in the stool, which can be a symptom of TB but is not specific to TB. Hemoptysis, or coughing up blood, can occur in various conditions, including bronchitis, pneumonia, lung cancer, and TB. The hemoccult test cannot differentiate between these causes, making it an unreliable test for diagnosing TB.
Choice C rationale
A positive purified protein derivative (PPD) skin test indicates exposure to TB but does not confirm active infection. The PPD skin test involves injecting a small amount of tuberculin, a protein derived from Mycobacterium tuberculosis, into the skin. If a person has been exposed to TB, their immune system will react to the tuberculin, causing a raised red bump to appear at the injection site. However, a positive PPD skin test does not necessarily mean that a person has active TB infection. It could also mean that they have been exposed to TB in the past but have successfully fought off the infection. Further testing, such as a sputum culture, is needed to confirm the diagnosis of TB.
Choice D rationale
A sputum culture positive for Mycobacterium tuberculosis is the definitive diagnostic test for TB. It involves collecting a sample of sputum, which is the mucus coughed up from the lungs, and culturing it in a laboratory to see if Mycobacterium tuberculosis, the bacteria that causes TB, grows. This test is highly specific for TB, meaning that a positive result is almost always indicative of TB infection. It is also sensitive, meaning that it can detect TB infection even when there are few bacteria present.