The nurse performs an admission assessment on a client with a diagnosis of tuberculosis. The nurse should check the results of which diagnostic test that will confirm this diagnosis?
Sputum culture for AFB
Chest x-ray
Mantoux test
Pulmonary function test
The Correct Answer is A
A. Sputum culture for AFB: A sputum culture for acid-fast bacilli (AFB) is the definitive diagnostic test for active tuberculosis. It confirms the presence of Mycobacterium tuberculosis by identifying and culturing the bacteria from sputum, which is the most reliable confirmation of disease.
B. Chest x-ray: A chest x-ray can show lung abnormalities consistent with TB, such as cavitations or infiltrates, but it cannot confirm active infection. It is useful for supporting diagnosis but must be interpreted alongside microbiological tests.
C. Mantoux test: The Mantoux (PPD) test identifies TB exposure by measuring delayed hypersensitivity, but it does not distinguish between latent and active infection. A positive result requires further testing to confirm active disease.
D. Pulmonary function test: Pulmonary function tests assess lung capacity and airflow but are not used for diagnosing tuberculosis. They may be used later to evaluate lung impairment but have no role in confirming TB.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D"]
Explanation
A. Drink juices high in vitamin C: While vitamin C may help support immune function, it does not prevent the transmission of colds to others. This measure is more about personal health and has no direct effect on reducing contagion.
B. Cough into your elbow: Coughing into the elbow instead of the hands prevents the spread of respiratory droplets through touch, reducing the likelihood of contaminating surfaces and infecting others.
C. Wash hands frequently: Hand hygiene is one of the most effective ways to prevent the spread of respiratory viruses. Frequent handwashing helps remove viruses acquired from contaminated surfaces or respiratory secretions.
D. Cover the mouth and nose when sneezing: Covering the mouth and nose with a tissue or elbow during sneezing limits the dispersion of infectious droplets into the air, reducing transmission to others.
E. Use a saline nose spray frequently: Saline sprays may keep nasal passages moist and comfortable, but they do not reduce the risk of spreading infection to others. Their use is symptomatic, not preventive from a contagion standpoint.
Correct Answer is ["39.0"]
Explanation
Calculation:
To convert Fahrenheit to Celsius, use the formula:
C = (F−32) ×5/9
Given Fahrenheit temperature (F) = 102.2°F
- Subtract 32 from the Fahrenheit temperature.
102.2−32=70.2
- Multiply the result by 5/9
70.2× 5/9
=39
The temperature in Celsius is 39.0°C.
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