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 C

Explanation

Step 1 is to calculate the amount of amoxicillin in milliliters. Step 2: We know that 250 mg of amoxicillin is in 5 mL.
Step 3: We need to find out how many mL contain 350 mg of amoxicillin. Step 4: Set up a proportion: 250 mg/5 mL = 350 mg/x mL.
Step 5: Cross-multiply and solve for x: 250x = 1750. Step 6: Divide both sides by 250: x = 7 mL2.

A. “I should have my son change the batteries in my smoke detectors each year.”. B. “I should use my walker carefully when going upstairs.”. C. “I should leave a night light on when I go to bed at night.”. D. “I should have grab bars installed in my bathroom.”. E. “I should have grab bars installed in my bathroom.”.

Correct Answer is B

Explanation

Choice A rationale
It is a good practice to change the batteries in smoke detectors annually to ensure they are working properly. This statement does not indicate a need for further instruction.
Choice B rationale
Using a walker when going upstairs can be dangerous due to the risk of falls. It is recommended that individuals use handrails or assistance when navigating stairs, not a walker. This statement indicates that the client needs further instruction.
Choice C rationale
Leaving a night light on can help prevent falls by providing visibility during the night. This statement does not indicate a need for further instruction.
Choice D rationale

Installing grab bars in the bathroom, especially near the toilet and in the shower, can provide support and prevent falls. This statement does not indicate a need for further instruction.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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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?