A nurse who serves on an infection control committee is assessing the adequacy of environmental controls against infection.
What does the nurse know to be the first line of defense in medical asepsis?
Isolation or barrier procedures.
Standard precautions.
Hand hygiene techniques.
Routine cleaning of client rooms.
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A toileting routine is the priority intervention for a client diagnosed with total urinary incontinence because it helps to prevent skin breakdown, infection, and odor. It also promotes dignity and comfort for the client.
Choice B. Kegel exercises are wrong because they are not effective for total urinary incontinence, which is the complete loss of bladder control. Kegel exercises are more useful for stress or urge urinary incontinence, which are caused by weak pelvic floor muscles.
Choice C. Surgery is wrong because it is not a priority intervention for total urinary incontinence.
Surgery may be considered a last resort option if other conservative measures fail to improve the condition. Surgery may also have risks and complications that need to be weighed against the benefits.
Choice D. Anticholinergic drug therapy is wrong because it is not a priority intervention for total urinary incontinence.
Anticholinergic drugs are used to treat overactive bladder or urge urinary incontinence, which are caused by involuntary bladder contractions. Anticholinergic drugs may have side effects such as dry mouth, constipation, blurred vision, and confusion.
Correct Answer is B
Explanation
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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