Nursing Elites

1. What is the primary function of surfactant in the lungs?

• A. Reduce surface tension
• B. Enhance oxygen absorption
• C. Facilitate carbon dioxide release
• D. Increase lung volume

Correct answer: A

Rationale: The primary function of surfactant in the lungs is to reduce surface tension in the alveoli. This reduction in surface tension prevents lung collapse and allows for easier breathing. It is particularly crucial in premature infants to help with lung expansion. Choice B is incorrect because surfactant primarily affects surface tension, not oxygen absorption. Choice C is incorrect because surfactant's main role is not in facilitating carbon dioxide release. Choice D is incorrect because surfactant does not directly increase lung volume; its main role is in reducing surface tension.

2. The practical nurse is caring for a client whose urine drug screen is positive for cocaine. Which behavior is this client likely to exhibit during cocaine withdrawal?

• A. Elevated energy level
• B. Euphoria
• C. High self-esteem
• D. Powerful craving for more

Correct answer: D

Rationale: The correct answer is D: Powerful craving for more. During cocaine withdrawal, individuals often experience intense cravings for the drug, along with symptoms such as fatigue, depression, and anxiety. These cravings can be overpowering and lead to a strong desire to seek out more cocaine to alleviate the withdrawal symptoms. Choices A, B, and C are incorrect as elevated energy level, euphoria, and high self-esteem are more associated with the effects of cocaine rather than withdrawal symptoms. Withdrawal from cocaine is characterized by the opposite, such as fatigue, low mood, and intense cravings.

3. The PN notes that a UAP is ambulating a male client who had a stroke and has right-sided weakness. The UAP is walking on the client's left side. Which action should the PN take?

• A. Instruct the UAP to walk on the client's affected side
• B. Take over the ambulation and provide guidance to the UAP immediately
• C. Provide the client with an assistive device, such as a cane or walker
• D. Tell the UAP to take the client back to his room

Correct answer: A

Rationale: The correct action for the PN to take is to instruct the UAP to walk on the client’s affected side. This is essential to provide the necessary support and prevent falls, especially when the client has weakness on one side due to a stroke. Walking on the affected side helps provide stability and assistance to the weaker side. Choice B is incorrect because it would be more appropriate for the PN to provide immediate guidance and correct the UAP's positioning rather than taking over the task completely. Choice C is incorrect because while assistive devices may be beneficial, the immediate concern is the UAP's positioning during ambulation, not providing the client with an assistive device. Choice D is incorrect as there is no indication to return the client to his room unless it is necessary for his safety or well-being.

4. Before administering an antibiotic that can cause nephrotoxicity, which lab value is most important for the PN to review?

• A. Hemoglobin and Hematocrit
• B. Serum Calcium
• C. Serum Creatinine
• D. WBC

Correct answer: C

Rationale: Serum creatinine is the most important lab value to review before administering an antibiotic that can cause nephrotoxicity. This is because serum creatinine is a key indicator of kidney function. An elevated serum creatinine level may indicate impaired renal function, and administering nephrotoxic drugs in such situations can further damage the kidneys. Monitoring serum creatinine levels helps healthcare providers assess renal function and make informed decisions regarding drug administration. Choices A, B, and D are not as directly related to kidney function and nephrotoxicity, making them less crucial in this scenario. Hemoglobin and hematocrit levels assess for anemia, serum calcium levels are more related to bone health and nerve function, and WBC count is associated with immune response, none of which directly reflect kidney function or the risk of nephrotoxicity.

5. A client presents to the office with complaints of swelling in the legs, chills, and shortness of breath. During auscultation of the chest, a heart murmur is heard. The client's blood culture reveals a microorganism in the blood. When a microorganism is found in the blood, this condition is called

• A. Bacteremia
• B. Sepsis
• C. Septicemia
• D. Parasitic infection

Correct answer: A

Rationale: When a microorganism is found in the blood, this condition is called bacteremia, which refers to the presence of bacteria in the bloodstream, as indicated by a positive blood culture. If not appropriately treated, bacteremia can progress to septicemia, also known as sepsis. Sepsis is a severe and life-threatening response to an infection, characterized by systemic inflammation and organ dysfunction. Parasitic infections involve pathogens other than bacteria and are not directly related to the scenario described.

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