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 B
Explanation
Choice A Reason:
Refill the prescription every 12 months. This statement focuses on the frequency of prescription refills rather than guidance on the medication's use. While it's important to keep prescriptions up to date, this instruction doesn't directly relate to the administration or use of sublingual nitroglycerin for angina.
Choice B Reason:
Take a second tablet after 5 minutes for unrelieved chest pain. This advice is crucial because if the chest pain persists after the first tablet, taking a second tablet after 5 minutes (and seeking emergency medical assistance if pain persists after the second tablet) is part of the recommended protocol for managing unstable angina with sublingual nitroglycerin.
Choice C Reason:
Swallow the tablet whole with a glass of water. Sublingual nitroglycerin is designed to dissolve under the tongue, not to be swallowed. The medicine is absorbed through the blood vessels in the mouth to provide rapid relief for angina symptoms. Instructing the patient to swallow the tablet defeats the purpose of sublingual administration.
Choice D Reason:
Store the medication in the refrigerator. Nitroglycerin should generally be stored in a cool, dry place and away from direct sunlight, but refrigeration is not necessary. Storing it in the refrigerator might actually alter the medication's effectiveness or consistency, making it less reliable for quick absorption when needed during an angina episode.
Correct Answer is A
Explanation
Choice A Reason:
Suction equipment is recommended. This is a crucial supply to have at hand. During or after a seizure, the client might have excessive secretions or vomit, which could potentially obstruct their airway. Suction equipment helps clear the airway and maintain breathing, making it an essential item to have bedside.
Choice B Reason:
Padded tongue blades is incorrect. The use of padded tongue blades during a seizure is not recommended. Placing anything inside the mouth during a seizure could cause injury or pose a risk of choking. Keeping the airway clear and ensuring the client's safety is more important than attempting to manipulate the tongue.
Choice C Reason:
Backboard is incorrect.Backboards are typically used for spinal immobilization in cases of suspected spinal injury, not specifically for seizure management. Unless there's a concurrent injury or trauma, a backboard wouldn't be routinely necessary for a client having a seizure.
Choice D Reason:
Wrist restraints is incorrect. Restraints are generally not used for managing seizures. Using restraints during a seizure could potentially cause harm, restrict movement, and increase the risk of injury to the client. Restraints are not considered appropriate or safe for managing seizures.
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