An occupational health nurse is interpreting the results of a tuberculin skin test for a group of clients who received the test 48 hr ago. Which of the following clients should the nurse identify as having a positive test result?
A client whose injection site is scabbed
A client whose injection site is firm and measures 3 mm (0.1 in)
A client whose injection site has an elevated area measuring 15 mm (0.6 in)
A client whose injection site is ecchymotic
The Correct Answer is C
Choice A Reason:
A client whose injection site is scabbed is incorrect. Scabbing at the injection site does not provide information about the presence or absence of induration. It doesn't contribute to interpreting the test result directly.
Choice B Reason:
A client whose injection site is firm and measures 3 mm (0.1 in) is incorrect. A measurement of 3 mm of induration is generally considered a negative result for most individuals, including those without any risk factors for tuberculosis (TB).
Choice C Reason:
A client whose injection site has an elevated area measuring 15 mm (0.6 is correct. An area of induration measuring 15 mm or more is considered positive in individuals with no known risk factors for TB.
Choice D Reason:
A client whose injection site is ecchymotic is incorrect. Ecchymosis (bruising) at the injection site is not relevant to the interpretation of the tuberculin skin test. It does not contribute to determining a positive or negative result.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason:
Administer meperidine IM is incorrect. Reason why it's not the answer: Meperidine (Demerol) is not recommended in cases of malignant hyperthermia. It can potentially exacerbate the situation by further increasing muscle rigidity and potentially contributing to the hypermetabolic state. Meperidine can trigger additional release of calcium from the sarcoplasmic reticulum in muscles, worsening the symptoms.
Choice B Reason:
Instill a warm enema solution is incorrect. Reason why it's not the answer: Introducing warm solutions can exacerbate the client's condition by further increasing body temperature. Malignant hyperthermia is characterized by a dangerous increase in body temperature, and adding heat through an enema would only make the situation worse.
Choice C Reason:
Applying a cooling blanket is recommendable. Reason why it's the answer: A cooling blanket is a recommended intervention for managing malignant hyperthermia. Lowering the body temperature is crucial in preventing further complications associated with the high fever. Cooling blankets help dissipate heat from the body, aiding in rapidly reducing the dangerously elevated temperature associated with malignant hyperthermia.
Choice D Reason:
Ventilate client with 50% oxygen is incorrect. Reason why it's not the answer: While providing oxygen support might be necessary as part of managing the overall condition, ventilating with 50% oxygen specifically may not directly address the core issue of rapidly cooling the body during a malignant hyperthermia crisis. Ventilation may be required, but the immediate concern is to cool the body to prevent complications arising from the elevated body temperature.
Correct Answer is A
Explanation
Choice A Reason:
Administering a prescribed oral dose of trazodone to the client is correct. Trazodone is sometimes used to manage agitation in patients with Alzheimer's disease, as it has calming effects and can help reduce agitation and anxiety. However, the use of any medication should be based on the client's individualized treatment plan and prescribed by a healthcare provider.
Choice B Reason:
Encouraging ambulation might not be suitable if the client is agitated, as it could potentially escalate the situation or increase the risk of falls or injury. Safety should be a priority, and ambulation might not be advisable during a state of agitation.
Choice C Reason:
Isolating the client in their room is incorrect. Isolating the client might increase feelings of confusion, fear, or distress, potentially worsening the agitation. It's important to engage and support the client rather than isolate them, which can be distressing for someone with Alzheimer's disease.
Choice D Reason:
Applying bilateral wrist restraints to the client is incorrect. The use of restraints should only be considered as a last resort when all other measures have failed and when there's an immediate risk of harm to the client or others. Restraints can be physically and psychologically harmful, leading to increased agitation, anxiety, and potential injury. They should be used only under strict guidelines and with proper authorization when all other interventions have been exhausted.
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