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 D
Explanation
The correct answer is choice D. Allow frequent rest periods.
Choice A rationale:
Encouraging fluids is not appropriate for a client with heart failure. Clients with heart failure often experience fluid overload due to the heart’s inability to pump effectively, leading to fluid retention.Encouraging additional fluid intake can exacerbate this condition, worsening symptoms such as edema and shortness of breath.
Choice B rationale:
Measuring vital signs every 8 hours may not be frequent enough for a client with heart failure, especially if they are experiencing acute symptoms.More frequent monitoring is often necessary to detect changes in the client’s condition promptly and to manage symptoms effectively.
Choice C rationale:
Obtaining weight weekly is not sufficient for a client with heart failure. Daily weight monitoring is crucial as it helps in detecting fluid retention early.Sudden weight gain can indicate worsening heart failure and the need for adjustments in treatment.
Choice D rationale:
Allowing frequent rest periods is essential for clients with heart failure. These clients often experience fatigue and decreased exercise tolerance due to reduced cardiac output.Frequent rest periods help in managing fatigue and preventing overexertion, which can worsen heart failure symptoms.
Correct Answer is C
Explanation
Choice A rationale: Breast self-examinations should be performed monthly, not every other month. This regularity helps with early detection of any changes.
Choice B rationale: Dimpling of the skin on the breasts is not common and can be a sign of breast cancer or other conditions. This statement indicates a misunderstanding.
Choice C rationale: It is indeed common for one breast to be slightly larger than the other. This is a normal variation and not usually a cause for concern.
Choice D rationale: Breast self-examinations should be performed several days after the menstrual period ends, not the day the period begins. This timing helps to reduce the likelihood of hormonal changes affecting breast tissue.
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