A nurse in a community health center is assessing the results of a tuberculin skin test she performed on a client. Which of the following results indicates exposure to and a possible infection with tuberculosis (TB)?

10 mm wheal

5 mm induration

15 mm induration

4 mm erythema

Answer and Explanation

The Correct Answer is C

Choice A Reason:
A 10 mm wheal is not indicative of TB infection. A wheal is a raised, often itchy area of skin that usually signifies an allergic reaction, not an infection. The TST looks for induration, which is a firm swelling, as a sign of TB infection.

Choice B Reason:
A 5 mm induration is considered positive in certain high-risk groups, such as people living with HIV, recent contacts of TB patients, or those with a history of organ transplants. For individuals without these risk factors, a 5 mm induration is not considered a positive result.

Choice C Reason:
A 15 mm induration is considered a positive TST result for individuals with no known risk factors for TB. This indicates that the person's immune system has reacted to the tuberculin purified protein derivative (PPD) injected under the skin, suggesting exposure to TB bacteria.

Choice D Reason:
Erythema, or redness of the skin, is not measured when interpreting TST results. The test measures induration, which is a palpable, raised, hardened area or swelling. Therefore, a 4 mm erythema does not indicate TB infection.

Nursing Test Bank

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Correct Answer is C

Explanation

Choice A reason:
Gingivitis, an inflammation of the gums, is not specifically associated with a decreased CD4+ T-cell count. While individuals with HIV/AIDS may have an increased risk for periodontal diseases due to a compromised immune system, gingivitis is not directly linked to the CD4+ T-cell count¹.

Choice B reason:
Xerostomia, or dry mouth, can be a side effect of medications or secondary to other conditions but is not an infectious condition. It is not directly related to a decreased CD4+ T-cell count, although it may be more common in individuals with HIV/AIDS due to various factors, including medication side effects¹.

Choice C reason:
Candidiasis, also known as oral thrush, is a common opportunistic infection in individuals with HIV/AIDS, especially when the CD4+ T-cell count is significantly decreased. It is caused by the fungus Candida and can lead to white patches in the mouth, soreness, and difficulty swallowing.

Choice D reason:
Halitosis, or bad breath, is not an infectious condition and is not directly associated with a decreased CD4+ T-cell count. It can result from various factors, including oral hygiene, diet, or underlying health conditions, but it is not a specific concern related to HIV/AID.

A. There is no need to cover the cast when showering. B. Apply ice to your foot after walking. C. A musty odor is normal as the cast ages. D. Report any numbness or pain in your toes.

Correct Answer is D

Explanation

Choice A reason:
It is important to keep a Plaster of Paris cast dry because moisture can weaken the cast and irritate the skin underneath. Therefore, the cast should be covered while showering to prevent it from getting wet.

Choice B reason:
Applying ice to the foot after walking can help reduce swelling and provide pain relief. It is a common recommendation for managing discomfort associated with a walking cast. The ice should be applied over the cast at the level of the injury for 15-30 minutes, repeating every few hours for the first few days.

Choice C reason:
While a musty odor can develop over time due to sweat and lack of air circulation, it is not necessarily normal and could indicate a problem such as an infection. If there is a persistent unpleasant odor, it should be evaluated by a healthcare provider.

Choice D reason:
Numbness or pain in the toes can be a sign of compromised circulation or nerve compression and should be reported immediately. It is crucial to monitor for any changes in sensation or increased pain, as these could indicate a serious issue that requires medical attention.

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A nurse in a community health center is assessing the results of a tuberculin skin test she performed on a client. Which of the following results indicates exposure to and a possible infection with tuberculosis (TB)?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse in a clinic is assessing a client who has AIDS and a significantly decreased CD4+ T-cell count. The nurse should recognize that the client is at risk for developing which of the following infectious oral conditions?

Correct Answer is C

Explanation

A nurse is providing discharge teaching to a client who has a Plaster of Paris walking cast on his left lower leg. Which of the following instructions should the nurse include?

Correct Answer is D

Explanation

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