Which infection control measure, by the nurse, reduces the potential spread of methicillin-resistant Staphylococcus aureus (MRSA)?
Wearing an N95 mask while in the room of a patient with airborne precautions.
Wearing a facemask while in the room of a patient with droplet precautions.
Use of a separate disposable blood pressure cuff for any patient with a draining wound.
Use of strict hand washing measures once in every 8-hour work shift.
The Correct Answer is C
Choice A rationale
Wearing an N95 mask is appropriate for airborne precautions, such as tuberculosis, but not specifically for MRSA, which requires contact precautions.
Choice B rationale
Wearing a facemask is suitable for droplet precautions, such as influenza, but MRSA is primarily spread through direct contact, not droplets.
Choice C rationale
Using a separate disposable blood pressure cuff for patients with draining wounds helps prevent the spread of MRSA. MRSA can be transmitted via contaminated medical equipment.
Choice D rationale
Strict hand washing measures are essential but should be performed more frequently than once every 8-hour shift. Hand hygiene should be practiced before and after patient contact.
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Correct Answer is D
Explanation
Choice A rationale
Poor blood glucose control is a significant factor in delayed wound healing in patients with diabetes. Hyperglycemia impairs various aspects of the immune response, reduces blood flow, and increases the risk of infection, all of which contribute to delayed healing.
Choice B rationale
Inadequate protein intake can also contribute to delayed wound healing. Protein is essential for the repair and regeneration of tissues, and a deficiency can impair the body’s ability to heal wounds effectively.
Choice C rationale
Peripheral neuropathy, a common complication of diabetes, can lead to decreased sensation in the feet, making it more likely for injuries to go unnoticed and untreated. This can result in chronic wounds and delayed healing.
Choice D rationale
All of the above factors—poor blood glucose control, inadequate protein intake, and peripheral neuropathy—can contribute to delayed healing of foot ulcers in patients with diabetes. Each of these factors plays a role in the complex process of wound healing and can hinder the body’s ability to repair itself.
Correct Answer is A
Explanation
Choice A rationale
Increased shortness of breath is a key symptom of worsening congestive heart failure (CHF). It indicates that the heart is not effectively pumping blood, leading to fluid buildup in the lungs and increased respiratory effort.
Choice B rationale
A temperature of 37°C (98.6°F) is within the normal range and does not indicate worsening CHF. Monitoring the patient’s temperature is important, but it is not a sign of CHF exacerbation.
Choice C rationale
A blood pressure of 120/80 mmHg is within the normal range and does not indicate worsening CHF. Blood pressure should be monitored, but this reading does not suggest an acute issue.
Choice D rationale
Occasional dizziness can be a symptom of many conditions, including CHF, but it is not as specific or critical as increased shortness of breath. It should be monitored, but it does not indicate an immediate worsening of CHF.