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 A
Explanation
Choice A rationale:
Repositioning the client every 3 hours is a crucial intervention to prevent skin breakdown in older adults who are immobile or have limited mobility. Prolonged pressure on certain areas can lead to ischemia and tissue damage, particularly over bony prominences. Repositioning helps to distribute pressure evenly, maintain circulation, and reduce the risk of pressure ulcers.
Choice B rationale:
Massage of bony prominences is not recommended as a preventive measure for skin breakdown. Massaging these areas can actually cause friction and shear forces, leading to further damage to the delicate skin of older adults. Gentle repositioning and maintaining proper skin hygiene are more effective strategies.
Choice C rationale:
While a diet high in protein is important for overall health, it is not a direct intervention for maintaining the integrity of the client's skin. Protein is necessary for wound healing and tissue repair, but it doesn't address the primary concern of preventing skin breakdown due to pressure.
Choice D rationale:
Applying cornstarch to keep the skin dry is not a recommended practice for preventing skin breakdown. Excessive moisture can contribute to skin breakdown, but cornstarch may not be the best solution. Proper hygiene, gentle cleansing, and appropriate use of moisture-barrier products are more effective in maintaining skin integrity.
Correct Answer is A
Explanation
Choice A rationale:
This choice is correct. Hepatitis B is primarily transmitted through contact with infected blood and bodily fluids. Contact precautions are designed to prevent the spread of infections that are transmitted through direct or indirect contact. These precautions include wearing gloves and gowns when in contact with the client or their environment.
Choice B rationale:
Droplet precautions are not appropriate for hepatitis B. Droplet precautions are used for infections that are spread through respiratory droplets, like coughing or sneezing. Hepatitis B is not primarily transmitted through respiratory droplets.
Choice C rationale:
Standard precautions involve the use of protective barriers such as gloves, gowns, masks, and eye protection to prevent the transmission of infections. While these precautions should always be practiced, they are not specifically tailored to hepatitis B, which has its own set of precautions.
Choice D rationale:
Airborne precautions are used for infections that are spread through small respiratory particles that remain suspended in the air for longer periods. Hepatitis B is not transmitted through airborne routes, so airborne precautions are not necessary.
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