Nursing Elites

1. What are Korotkoff sounds?

• A. Sounds noted during diastole.
• B. The result of the vibration of blood against artery walls while blood pressure readings are being taken.
• C. Sounds only noted by skilled cardiologists.
• D. Distinct sounds which are classified into 6 phases.

Correct answer: The result of the vibration of blood against artery walls while blood pressure readings are being taken.

Rationale: Korotkoff sounds are the sounds that occur when blood flows in an artery that has been temporarily compressed during a blood pressure measurement. These sounds result from the vibration of blood against the artery walls as the pressure cuff is released. There are five distinct phases of Korotkoff sounds, which healthcare providers are trained to identify during blood pressure assessment. The correct answer, choice B, accurately describes the nature of Korotkoff sounds and how they are generated. Choices A, C, and D are incorrect because Korotkoff sounds are not specific to diastole, not limited to skilled cardiologists, and categorized into five phases, not six.

2. Which of the following actions is most appropriate for reducing the risk of infection during the post-operative period?

• A. Flush the central line with heparin at least every four hours
• B. Administer narcotic analgesics as needed
• C. Remove the urinary catheter as soon as the client is ambulatory
• D. Order a high-protein diet for the client

Correct answer: Remove the urinary catheter as soon as the client is ambulatory

Rationale: The most appropriate action to reduce the risk of infection during the post-operative period is to remove the urinary catheter as soon as the client is ambulatory. Urinary catheters can serve as a source of bacteria, increasing the risk of infection in the bladder or urethra. By removing the catheter promptly once the client is mobile, the risk of infection can be minimized. Option A, flushing the central line with heparin, is not directly related to reducing urinary tract infections. Option B, administering narcotic analgesics as needed, is important for pain management but does not directly address infection prevention. Option D, ordering a high-protein diet, may be beneficial for wound healing but does not specifically target infection risk reduction in the post-operative period.

3. The NFPA diamond has four colors. The blue diamond:

• A. indicates hazards to health.
• B. designates that it is safe to use water to put out this type of fire.
• C. indicates that ice is necessary to treat an injury with this type of chemical.
• D. indicates that the chemical may be incinerated upon disposal.

Correct answer: indicates hazards to health.

Rationale: The National Fire Protection Agency (NFPA) uses a safety diamond to communicate the level of threat posed by a specific chemical. The blue diamond in the NFPA diamond system signifies potential health hazards associated with the use of that chemical. Choice B is incorrect because the blue diamond does not indicate anything about using water to extinguish fires. Choice C is incorrect as the NFPA diamond does not provide information on treating injuries. Choice D is also incorrect as the blue diamond does not suggest incineration upon disposal; it pertains to health hazards.

4. When considering the concepts related to blood pressure, which statement best describes the concept of mean arterial pressure (MAP)?

• A. MAP is the pressure of the arterial pulse.
• B. MAP reflects the stroke volume of the heart.
• C. MAP is the pressure forcing blood into the tissues, averaged over the cardiac cycle.
• D. MAP is an average of the systolic and diastolic blood pressures and reflects tissue perfusion.

Correct answer: C: MAP is the pressure forcing blood into the tissues, averaged over the cardiac cycle.

Rationale: Mean Arterial Pressure (MAP) is the pressure that forces blood into the tissues, averaged over the cardiac cycle. It is not the pressure of the arterial pulse (Choice A), nor does it directly reflect the stroke volume of the heart (Choice B). While MAP involves systolic and diastolic pressures, it is not simply an average of these two values as diastole lasts longer. Instead, MAP is closer to diastolic pressure plus one third of the pulse pressure. The best description of MAP is that it represents the pressure forcing blood into the tissues, averaged over the cardiac cycle.

5. You are taking care of 5 patients today. One of your patients wants water; another needs help walking to the bathroom; another just stated that they have chest pain; and another is crying because his daughter did not visit him today. Which patient care problem must you deal with first?

• A. The water
• B. Help to the bathroom
• C. The chest pain
• D. The crying person

Correct answer: The chest pain

Rationale: The chest pain must be addressed immediately as it could indicate a serious condition like a heart attack. Treating chest pain is a top priority in healthcare settings due to the potential life-threatening nature of the symptom. Providing immediate attention to chest pain ensures prompt assessment, diagnosis, and intervention, which are crucial for patient safety and well-being. Addressing the other needs, such as providing water, assisting with bathroom needs, or emotional support, can follow once the urgent issue of chest pain has been managed. While the other patient concerns are important, the critical nature of chest pain requires immediate action to rule out severe cardiac events and provide appropriate care.

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