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

Answer and Explanation

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.

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Correct Answer is B

Explanation

Choice A rationale
While it’s true that a nasal cannula allows the patient to remove it for a while when it gets uncomfortable, this is not the primary reason for using a nasal cannula. The main purpose of a nasal cannula is to deliver oxygen.
Choice B rationale
A nasal cannula delivers the low concentration of oxygen that the patient needs. It is designed to provide a specific amount of oxygen, and the flow rate can be adjusted as needed.

Choice C rationale
While a nasal cannula does deliver a specific concentration of oxygen, it does not do so constantly. The amount of oxygen delivered can vary depending on the patient’s breathing rate and depth.
Choice D rationale
A nasal cannula does not deliver the highest concentration of oxygen possible. Other devices, such as non-rebreather masks, can deliver higher concentrations of oxygen.

A. Cranberry juice. B. Lemon sherbet. C. Carrot juice. D. Plain yogurt.

Correct Answer is A

Explanation

Choice A rationale
Cranberry juice is an acceptable component of a clear liquid diet. Clear liquid diets are often prescribed postoperatively as they are easy to digest and leave no residue in the digestive tract.
Choice B rationale
Lemon sherbet is not part of a clear liquid diet. It is considered part of a full liquid diet, which is more substantial and includes foods that are liquid at room temperature.
Choice C rationale

Carrot juice is not typically included in a clear liquid diet. It may contain pulp and is not clear, which is a requirement of a clear liquid diet.
Choice D rationale
Plain yogurt is not part of a clear liquid diet. It is considered a solid food and is therefore not included.

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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?

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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?