A Cardiovascular nurse is preparing to measure a client's level of oxygen saturation and observes edema of both hands and thickened toenails. The nurse should apply the pulse oximeter probe to which of the following locations?
Toe.
Earlobe.
Skin fold.
Finger.
The Correct Answer is B
Choice A rationale:
Applying the pulse oximeter probe to the toe is not the most appropriate location. While toe measurements can be used, the fingers are more commonly used due to their accessibility and accuracy. Edema in the hands could affect the accuracy of readings.
Choice B rationale:
The nurse should apply the pulse oximeter probe to the earlobe. This choice is correct because the earlobe is a well-vascularized and easily accessible area that provides accurate oxygen saturation measurements. Thickened toenails and edema of the hands might compromise readings in those locations.
Choice C rationale:
Applying the pulse oximeter probe to a skin fold is not a recommended site for oxygen saturation measurement. While there are various sites where pulse oximeters can be applied, the earlobe and finger are more suitable due to their consistent blood flow and accessibility.
Choice D rationale:
While applying the pulse oximeter probe to the finger is a common and acceptable practice, in this scenario, edema of the hands could affect the accuracy of the readings. The earlobe is a better choice as it is less likely to be affected by edema and can provide accurate readings.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Cleaning the wound by scrubbing the site with gauze is not an appropriate intervention for a stage 3 pressure ulcer. Scrubbing can damage the fragile tissue, increase the risk of infection, and delay wound healing. Gentle cleaning with a mild solution and avoiding trauma to the wound bed are recommended.
Choice B rationale:
Massaging reddened areas with dressing changes is contraindicated for pressure ulcers, especially stage 3 ulcers. Massaging can cause further damage to the tissues and disrupt the healing process. Dressing changes should focus on maintaining a clean and moist environment to promote healing.
Choice C rationale:
(Correct Choice) Repositioning the client at least every 2 hours is a crucial intervention to prevent further pressure ulcers and facilitate wound healing. Regular repositioning helps relieve pressure on specific areas and improves blood circulation, reducing the risk of tissue breakdown and the development of new ulcers.
Choice D rationale:
Applying a heat lamp twice a day is not recommended for stage 3 pressure ulcers. Heat can increase blood flow to the area, potentially exacerbating inflammation and delaying healing. Pressure ulcers require a clean and moist environment for optimal healing.
Correct Answer is A
Explanation
Choice A rationale:
Instructing the client not to adjust the oxygen flow rate is crucial to ensure the appropriate amount of oxygen is delivered. Oxygen flow rates are prescribed by a healthcare provider based on the client's needs, and altering the flow rate without medical guidance can lead to inadequate oxygen delivery or oxygen toxicity.
Choice B rationale:
Weekly equipment checks are important, but this choice is not the most critical instruction. Clients should be instructed to check their oxygen equipment daily for proper functioning and to address any issues promptly. Waiting a whole week could lead to potential problems going unnoticed.
Choice C rationale:
Storing unused oxygen tanks horizontally is incorrect. Oxygen tanks should be stored upright to prevent leaks and ensure proper functioning. Storing them horizontally can cause valve damage and leakage, which could lead to hazards.
Choice D rationale:
Using wool blankets on the bed is not a suitable instruction for a client using oxygen therapy. Wool blankets can generate static electricity, which might pose a fire hazard in the presence of oxygen-enriched environments.
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