A client asks a nurse, “Why do I have to remove my nail polish in order for my pulse oximetry to be monitored?” Which is the best response by the nurse?

“I need to be able to assess the color of your nailbed.”.

“Nail polish can interfere with the transmission of light waves.”.

“The sensor may react with the nail polish causing an allergic reaction.”.

“The chemicals in the nail polish can cause falsely decreased readings of your oxygen level.”.

Answer and Explanation

The Correct Answer is B

Pulse oximetry works by measuring the amount of light that passes through your finger and reaches a sensor on the other side.

The amount of light that is absorbed by your blood depends on how much oxygen it carries. Nail polish can block or reflect some of the light, making it harder for the pulse oximeter to get an accurate reading of your oxygen level.

Choice A is wrong because the color of your nailbed is not relevant for pulse oximetry.

The pulse oximeter does not measure the color of your nailbed, but the amount of light that passes through it.

Choice C is wrong because the sensor does not react with the nail polish causing an allergic reaction.

The sensor is a non-invasive device that does not touch your skin or nail polish directly.

Choice D is wrong because the chemicals in the nail polish do not cause falsely decreased readings of your oxygen level.

The chemicals in the nail polish do not affect the amount of oxygen in your blood, but only the amount of light that reaches the sensor.

Normal ranges for pulse oximetry vary depending on your health condition and altitude, but generally they are between 95% and 100%. If your pulse oximetry reading is lower than 90%, you may have hypoxia, which means your tissues are not getting enough oxygen.

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Correct Answer is B

Explanation

This is because older adults have a reduced ability to excrete drugs and their metabolites through the kidneys, which can lead to drug accumulation and toxicity. Decreased renal function can also affect the pharmacokinetics and pharmacodynamics of many drugs, altering their absorption, distribution, metabolism, and elimination.

Choice A is wrong because reduced muscle mass does not directly affect drug metabolism or clearance, although it may affect the volume of distribution of some drugs that are highly protein-bound or lipophilic.

Choice C is wrong because slowed gastrointestinal motility does not increase the risk of adverse drug events in older adults, although it may affect the rate and extent of drug absorption.

Choice D is wrong because thinning of the layers of the skin does not affect drug metabolism or clearance, although it may increase the risk of skin infections or injuries.

A. Chicken, carrots, and fresh grapefruit salad. B. Salmon, turnip greens, brown rice, and an orange. C. Green salad, ground beef patty, corn, and applesauce. D. Plain omelet, bacon, toast with butter, and strawberries.

Correct Answer is B

Explanation

This meal selection best demonstrates a client with osteoporosis understands dietary recommendations because it provides adequate amounts of calcium, vitamin D, and protein, which are essential nutrients for bone health.

Choice A is wrong because chicken, carrots, and fresh grapefruit salad do not provide enough calcium or vitamin D for a person with osteoporosis.

Calcium is mainly found in dairy products, leafy green vegetables, and fish with bones. Vitamin D is mainly found in fatty fish, egg yolks, and fortified foods.

Choice C is wrong because green salad, ground beef patty, corn, and applesauce do not provide enough calcium or vitamin D for a person with osteoporosis.

Green salad may contain some calcium depending on the type of greens, but it is not a rich source.

Ground beef patty and corn are low in calcium and vitamin

D. Applesauce does not contain any calcium or vitamin

D. Choice D is wrong because plain omelet, bacon, toast with butter, and strawberries do not provide enough calcium or vitamin D for a person with osteoporosis.

Plain omelet and bacon are high in protein but low in calcium and vitamin

Toast with butter may contain some vitamin D if the bread or butter are fortified, but it is not a rich source.

Strawberries do not contain any calcium or vitamin

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A client asks a nurse, “Why do I have to remove my nail polish in order for my pulse oximetry to be monitored?” Which is the best response by the nurse?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which age-related physiological change puts a client at higher risk for adverse medication complications?

Correct Answer is B

Explanation

Which meal selection best demonstrates a client with osteoporosis understands dietary recommendations?

Correct Answer is B

Explanation

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