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 B
Explanation
BUN 40 mg/dL. Elevated BUN levels can indicate impaired kidney function, which can be a potential adverse effect of long-term NSAID therapy.
Reasons why the other options are not answers:
Option A: Total bilirubin 0.8 mg/dL is a normal value and does not require reporting to the provider.
Option C: PaO2 90 mm Hg is within the normal range and does not require reporting to the provider.
Option D: Hematocrit 45% is within the normal range and does not require reporting to the provider.
Correct Answer is A
Explanation
The correct answer is choice A, participate in reminiscence therapy with the client. This is an effective intervention for individuals with Alzheimer's disease. It involves encouraging the client to discuss past experiences and events. It has been shown to improve mood, decrease agitation, and increase communication skills. The reminiscence therapy should be individualized and tailored to the client's interests and abilities.
- Raising the four side rails on the client's bed is not the correct answer because this could cause harm to the client by restricting their mobility and independence.
- Alternating the client's daily routine is not the correct answer because individuals with Alzheimer's disease benefit from a consistent routine, which helps them to feel more secure and less anxious.
- Keeping the lights dimmed is not the correct answer because it can be disorienting and confusing for clients with Alzheimer's disease, who need adequate lighting to distinguish their surroundings.
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