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:
Applying a moisture barrier ointment helps protect the skin from the effects of moisture exposure due to urinary incontinence. Prolonged exposure to urine can lead to skin breakdown, irritation, and infection. A moisture barrier ointment creates a protective barrier, reducing the risk of skin damage.
Choice B rationale:
Requesting a prescription for an indwelling urinary catheter is not typically the first intervention to prevent skin breakdown in clients with urinary incontinence. Catheters carry their own set of risks, including infection, and should be considered after other interventions have been explored.
Choice C rationale:
Repositioning the client every 8 hours is important for preventing pressure ulcers but may not be sufficient to prevent skin breakdown due to urinary incontinence. Clients with urinary incontinence should be repositioned more frequently to address the effects of moisture.
Choice D rationale:
Checking the client's skin every 8 hours is an important step, but it alone may not effectively prevent skin breakdown. Incontinence-associated dermatitis can develop quickly, so it's essential to implement protective measures like using a moisture barrier ointment.
Correct Answer is C
Explanation
Choice A rationale:
Cyanosis - Cyanosis is a bluish discoloration of the skin and mucous membranes due to inadequate oxygenation of the blood. This is an objective sign that can be visually assessed, not based on the patient's description.
Choice B rationale:
Petechiae - Petechiae are small, pinpoint, red or purple spots on the skin caused by bleeding under the skin. Like cyanosis, this is a physical finding that can be observed directly.
Choice C rationale:
Dizziness - This is the correct choice. Dizziness is a subjective sensation that the patient experiences. It cannot be directly observed and relies on the patient's description of feeling unsteady, lightheaded, or having a spinning sensation.
Choice D rationale:
Blood pressure - Blood pressure is an objective measurement that can be taken using a blood pressure cuff and a stethoscope or automated device. It is not based on the patient's description and does not fall under subjective data.
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