A nurse is assisting with care for a client who received a tuberculin skin test 72 hr ago. When collecting data from the test site, which of the following findings indicates a need for further testing?
Nonpalpable area of redness, less than 5 mm (0.2 in) in diameter
Area of ecchymosis, greater than 12 mm (0.5 in) in diameter
Tenderness at the injection site
Palpable area of induration, greater than 10 mm (0.4 in) in diameter
The Correct Answer is D
Palpable area of induration, greater than 10 mm (0.4 in) in diameter. This indicates a positive tuberculin skin test (TST) reaction for a person with no known risk factors for TB infection. A positive TST reaction means that the person has been infected with Mycobacterium tuberculosis, the bacterium that causes TB disease, and needs further testing to confirm the diagnosis and rule out active TB disease.
The other choices are not correct because:
- Choice A. Nonpalpable area of redness, less than 5 mm (0.2 in) in diameter. This indicates a negative TST reaction for any person, regardless of their risk factors for TB infection. A negative TST reaction means that the person has not been infected with Mycobacterium tuberculosis or has a very low level of immune response to the bacterium.
- Choice B. Area of ecchymosis, greater than 12 mm (0.5 in) in diameter. This indicates a bruise or bleeding under the skin, not a TST reaction. Ecchymosis is not caused by the injection of tuberculin purified protein derivative (PPD) into the skin, but by trauma or injury to the blood vessels.
- Choice C. Tenderness at the injection site. This indicates a mild local reaction to the injection of tuberculin PPD into the skin, not a TST reaction. Tenderness is not measured in millimeters of induration (firm swelling), which is the standard way of reading TST results.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A. Weight-bearing exercise is an important way to decrease the risk of osteoporosis in a postmenopausal client. Choice B is incorrect because calcium carbonate supplements should be taken multiple times throughout the day for better absorption. Choice C is incorrect because vitamin D intake should be increased. Choice D is incorrect because there is no evidence that vitamin E intake decreases the risk of osteoporosis. Choice B is not correct because calcium carbonate supplements should be taken multiple times throughout the day for better absorption. Choice C is not correct because vitamin D intake should be increased.
Correct Answer is D
Explanation
This response indicates that the client understands that sudden jaw pain can be a sign of a heart attack and requires immediate medical attention.
A. "I will take four nitroglycerin sublingual tablets if I have chest pain." This is an incorrect statement because taking four nitroglycerin sublingual tablets can lead to hypotension and can be life-threatening.
B. "I will have hot, dry, and flushed skin if I am having a heart attack." This is an incorrect statement because hot, dry, and flushed skin is not a typical sign of a heart attack.
C. "I will wait 30 minutes before taking action if I have heartburn." This is an incorrect statement because heartburn is not a symptom of angina and waiting 30 minutes to take action can lead to further complications.
Explanation: The client with angina should be educated about the signs and symptoms of a heart attack and when to seek medical attention. Jaw pain is one of the signs of a heart attack, and the client should seek emergency medical attention immediately.
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