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.”.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","E"]
Explanation
Olanzapine is an antipsychotic drug that can cause weight gain and increased blood sugar as common side effects.
Therefore, the nurse should monitor the client’s weight and blood sugar regularly to prevent complications such as obesity and diabetes.
Choice B is wrong because olanzapine does not affect skin turgor, which is a measure of hydration status.
Choice C is wrong because olanzapine does not cause falls, although it may cause dizziness or unsteadiness as side effect.
Choice D is wrong because olanzapine does not cause significant changes in blood pressure, although it may cause orthostatic hypotension (a drop in blood pressure when standing up) as a side effect.
Correct Answer is C
Explanation
Hand hygiene techniques are the first line of defense in medical asepsis because they prevent the transmission of microorganisms from one person or object to another. Hand hygiene techniques include washing hands with soap and water or using an alcohol-based handrub.
Choice A is wrong because isolation or barrier procedures are not the first line of defense in medical asepsis, but rather a way of preventing the spread of infection to other patients or health care workers when a patient has a known or suspected infection.
Choice b is wrong because the nature of detergent used on the unit is not the first line of defense in medical asepsis, but rather a factor that affects the effectiveness of cleaning and disinfection of surfaces and equipment.
Choice D is wrong because the ventilation system type is not the first line of defense in medical asepsis, but rather a factor that affects the quality of air and the risk of airborne transmission of microorganisms.
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