Which test would the nurse expect the primary care provider to order to look for exposure to tuberculosis?
Antistreptolysin-O (ASO) titer.
Purified protein derivative test.
Chest X-ray.
C-reactive protein.
The Correct Answer is B
A. The ASO titer is a blood test used to detect streptococcal infections, particularly post-streptococcal sequelae like rheumatic fever or glomerulonephritis. It is not related to tuberculosis.
B. The Purified Protein Derivative (PPD) test, also known as the tuberculin skin test (TST), is specifically used to identify exposure to the tuberculosis bacteria. If a person has been exposed, the immune system will react to the PPD injection, causing a localized skin reaction that can be measured after 48-72 hours.
C. While a chest X-ray is an important tool for diagnosing active tuberculosis or assessing lung involvement, it is not the initial test for determining exposure to TB. It is usually ordered after a positive PPD test or when there are clinical symptoms of TB.
D. C-reactive protein (CRP) is a nonspecific marker of inflammation and infection in the body. It does not specifically indicate exposure to tuberculosis and is not used for TB testing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Mouth breathing is common after a tonsillectomy due to postoperative swelling and discomfort. It is not specifically a sign of hemorrhage. Instead, it is a typical adjustment as the child copes with throat pain and may find it easier to breathe through the mouth.
B. While reports of pain are expected after a tonsillectomy due to the nature of the surgery, they are not indicative of hemorrhage. Pain management is an important part of postoperative care, but increased pain alone does not signal bleeding.
C. Frequent swallowing can be a significant manifestation of hemorrhage following a tonsillectomy. This behavior may indicate that the child is trying to clear blood or secretions from the throat, or it may suggest that the child is swallowing blood that is pooling in the throat. It is an important sign for the nurse to monitor, as it can indicate active bleeding.
D. Reports of thirst are common after surgery due to fasting before the procedure and the dry mouth that can result from mouth breathing or the surgical site itself. While excessive thirst should be addressed, it is not a direct indicator of hemorrhage.
Correct Answer is C
Explanation
A. While obtaining a peak flow reading can provide valuable information about the child’s lung function and severity of the exacerbation, it is not the priority action during a status asthmaticus situation. The immediate focus should be on reversing the acute bronchospasm and ensuring the child can breathe effectively.
B. Identifying the cause of the asthma exacerbation (such as allergens, respiratory infections, or environmental factors) is important for long-term management and prevention. However, during a crisis, the priority is to address the immediate respiratory distress rather than to investigate the underlying cause.
C. Short-acting beta-2 agonists (e.g., albuterol) are the first-line treatment during an acute asthma exacerbation because they work quickly to relax bronchial smooth muscle and relieve airway obstruction. Administering a SABA can rapidly improve the child's breathing and oxygenation.
D. Inhaled glucocorticoids (e.g., fluticasone) are used to reduce inflammation in the airways and are important in long-term asthma management. However, they do not act as quickly as SABAs and are not the first step in the acute management of status asthmaticus. While they may be part of the treatment plan, they should follow the administration of a SABA during an acute episode.
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