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. Which of the following interventions is considered the most effective form of universal precautions?

• A. Cap all used needles before removing them from their syringes
• B. Discard all used uncapped needles and syringes in an impenetrable protective container
• C. Wear gloves when administering IM injections
• D. Follow enteric precautions

Correct answer: B

Rationale: The most effective form of universal precautions is to discard all used uncapped needles and syringes in an impenetrable protective container. This practice minimizes the risk of needle-stick injuries, which are a significant concern when dealing with used needles. By safely disposing of uncapped needles, healthcare providers can protect themselves and others from potential exposure to bloodborne pathogens.

3. Why is a precise amount of oxygen necessary for a patient with COPD to prevent which complication?

• A. Cardiac arrest related to increased partial pressure of carbon dioxide in arterial blood (PaCO2)
• B. Circulatory overload due to hypervolemia
• C. Respiratory excitement
• D. Inhibition of the respiratory hypoxic stimulus

Correct answer: D

Rationale: In patients with COPD, the respiratory drive is often stimulated by low oxygen levels. Administering too much oxygen can inhibit this hypoxic drive, leading to respiratory depression and potential respiratory failure. Therefore, it is crucial to carefully regulate the oxygen therapy to prevent the inhibition of the respiratory hypoxic stimulus in COPD patients.

4. Which of the following conditions may necessitate fluid restriction?

• A. Fever
• B. Chronic Obstructive Pulmonary Disease
• C. Renal Failure
• D. Dehydration

Correct answer: C

Rationale: Renal failure often necessitates fluid restriction to prevent fluid overload. In renal failure, the kidneys are unable to effectively filter and excrete excess fluids, leading to fluid accumulation in the body. Restricting fluid intake helps manage this condition by preventing further fluid buildup and complications such as edema and electrolyte imbalances.

5. A client has chronic pancreatitis. Which of the following dietary recommendations should be made?

• A. Coffee with creamer
• B. Lettuce with sliced avocados
• C. Broiled skinless chicken breast with brown rice
• D. None of the above

Correct answer: C

Rationale: Chronic pancreatitis requires a low-fat diet to reduce stress on the pancreas. Broiled skinless chicken breast with brown rice is a suitable option as it is low in fat. Coffee with creamer and lettuce with sliced avocados are not recommended for individuals with chronic pancreatitis due to their fat content. Choosing options high in fat can exacerbate symptoms and increase the workload on the pancreas, worsening the condition.

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