Nursing Elites

1. In which of the following organs does the exchange of gases take place?

• A. Kidneys
• B. Lungs
• C. Liver
• D. Heart

Correct answer: B

Rationale: The exchange of gases, specifically oxygen and carbon dioxide, occurs in the lungs. In the lungs, oxygen from the air we breathe enters the bloodstream, while carbon dioxide is removed from the bloodstream and exhaled. This process is essential for respiration and supplying the body with oxygen for energy production. The kidneys filter waste from the blood to produce urine and regulate fluid balance (Choice A). The liver is involved in detoxification, protein synthesis, and producing bile (Choice C). The heart is responsible for pumping blood throughout the body to deliver oxygen and nutrients (Choice D).

2. Studies have shown that about 40% of patients fall out of bed despite the use of side rails; this has led to which of the following conclusions?

• A. Side rails are ineffective
• B. Side rails should not be used
• C. Side rails are a deterrent that prevents a patient from falling out of bed
• D. Side rails are a reminder to a patient not to get out of bed

Correct answer: D

Rationale: The correct conclusion drawn from the study is that side rails serve as a reminder to the patient not to get out of bed rather than being a fail-proof preventive measure against falls. While they may not entirely prevent falls, they play a role in prompting the patient to be cautious when moving.

3. A healthcare provider is caring for an adolescent who has sickle-cell anemia. Which of the following manifestations indicates acute chest syndrome and should be immediately reported to the provider?

• A. Substernal retractions
• B. Hematuria
• C. Temperature 37.9�C (100.2�F)
• D. Sneezing

Correct answer: A

Rationale: Substernal retractions are a concerning sign of respiratory distress and can indicate acute chest syndrome, a severe complication of sickle-cell anemia. It results from vaso-occlusion in the pulmonary vasculature, leading to impaired oxygenation. Prompt reporting of this symptom is crucial for early intervention to prevent further complications. Hematuria, a high temperature, and sneezing are not specific manifestations of acute chest syndrome and would not warrant immediate notification to the provider in this context.

4. How many liters are equal to 1800 ml?

• A. 1.8
• B. 18000
• C. 180
• D. 2800

Correct answer: A

Rationale: To convert milliliters (ml) to liters, divide by 1000 since 1 liter is equal to 1000 ml. Therefore, 1800 ml is equal to 1800/1000 = 1.8 liters. Choice A (1.8) is correct. Choice B (18000) is incorrect as it equates to 18000 liters, not 1.8 liters. Choice C (180) is incorrect as it represents 180 liters, not 1.8 liters. Choice D (2800) is incorrect as it does not reflect the conversion of 1800 ml to liters.

5. A public health nurse is managing several projects for the community. Which of the following interventions should the nurse identify as a primary prevention strategy?

• A. Teaching parenting skills to expectant mothers and their partners.
• B. Conducting mental health screenings at the local community center
• C. Referring clients with obesity to community exercise programs
• D. Providing crisis intervention through a mobile counseling unit

Correct answer: A

Rationale: The correct answer is teaching parenting skills to expectant mothers and their partners. This intervention is a primary prevention strategy aimed at educating individuals before a problem or condition develops. By teaching parenting skills, the nurse is promoting healthy behaviors and relationships, which can prevent future issues. The other options involve secondary or tertiary prevention strategies by identifying and treating existing conditions or providing interventions after a problem has occurred.

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