The nurse is caring for a client with emphysema who is mildly dyspneic after ambulation. Which instruction should the nurse provide to the client to improve gas exchange?
Lay down on each side with knees bent and breathe from abdomen.
Increase breathing rate for a full 30 seconds.
Raise hands above the head to expand the diaphragm.
Draw air in through nose and exhale slowly through pursed lips.
The Correct Answer is D
Choice A rationale
Laying down on each side with knees bent and breathing from the abdomen is not an effective technique for improving gas exchange in emphysema patients.
Choice B rationale
Increasing the breathing rate for a full 30 seconds can lead to hyperventilation and is not recommended for improving gas exchange.
Choice C rationale
Raising hands above the head to expand the diaphragm is not a recognized technique for improving gas exchange in emphysema patients.
Choice D rationale
Drawing air in through the nose and exhaling slowly through pursed lips is an effective technique for improving gas exchange in emphysema patients. This method helps to keep the airways open longer and improves the removal of trapped air.
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Correct Answer is D
Explanation
Choice A rationale
Determining the neurological baseline prior to the fall is important but not the immediate priority. The client’s current confusion and projectile vomiting suggest a potential acute condition that needs immediate assessment.
Choice B rationale
Determining the client’s last dose of corticosteroids is relevant for managing multiple sclerosis but does not address the immediate concern of confusion and vomiting.
Choice C rationale
Administering a PRN IV antiemetic as prescribed can help manage vomiting but does not address the underlying cause of the symptoms.
Choice D rationale
Completing a head-to-toe neurological assessment is the priority intervention. The client’s confusion and projectile vomiting could indicate increased intracranial pressure or another acute neurological condition that requires immediate attention.
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.