A nurse is preparing to measure a client’s oxygen saturation and notes edema of the client’s hands and thickened toenails.
Where should the nurse apply the pulse oximeter probe?
Toe
Finger
Skin fold
Earlobe
The Correct Answer is D
Choice A rationale
Applying the pulse oximeter probe to the toe might not provide an accurate reading if the client has poor peripheral circulation. Additionally, thickened toenails can interfere with the reading.
Choice B rationale
Edema in the hands can affect the accuracy of a pulse oximeter reading. The probe might not fit properly or provide a reliable reading if the finger is swollen.
Choice C rationale
Applying the pulse oximeter probe to a skin fold is not recommended. The probe needs to be placed on a relatively flat, thin area of skin to accurately measure oxygen saturation.
Choice D rationale
The earlobe is a suitable alternative site for pulse oximetry if the fingers and toes are not viable options. The earlobe is typically less affected by peripheral vasoconstriction, which can occur with hypothermia, certain medications, and certain diseases. Therefore, Choice D is the correct answer.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Turning the patient on their side before starting oral care is a recommended practice when caring for an unresponsive patient. This position helps prevent aspiration, which can occur if the patient cannot swallow properly.
Choice B rationale
Applying petroleum jelly to the patient’s lips after oral care can help prevent dryness and cracking. However, it’s not the primary action the nurse should take when performing oral hygiene for an unresponsive patient.
Choice C rationale
Using the thumb and index finger to keep the patient’s mouth open is not recommended. It can cause discomfort and potential injury to the patient.
Choice D rationale
Using a stiff toothbrush to clean the patient’s teeth is not recommended. A soft toothbrush is usually used to clean the teeth of an unresponsive patient to prevent damage to the gums.
Correct Answer is B
Explanation
Step 1 is: The prescribed dose is 100 mcg and each tablet contains 50 mcg.
Step 2 is: Divide the prescribed dose by the amount per tablet. So, 100 mcg ÷ 50 mcg/tablet. Step 3 is: The result is 2 tablets.
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