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 action would break sterile technique while preparing a sterile field for a dressing change?

• A. Using sterile forceps instead of sterile gloves to handle a sterile item
• B. Touching the outside wrapper of sterilized material without sterile gloves
• C. Placing a sterile object at the edge of the sterile field
• D. Pouring out a small amount of solution (15 to 30 ml) before pouring it into a sterile container

Correct answer: B

Rationale: Touching the outside wrapper of sterilized material without sterile gloves can introduce contaminants and compromise the sterility of the item. It is crucial to maintain strict adherence to sterile technique to prevent infections and ensure patient safety during procedures.

3. How many drops are equivalent to 1 tsp?

• A. 15
• B. 60
• C. 10
• D. 30

Correct answer: B

Rationale: 1 teaspoon (tsp) is equivalent to approximately 60 drops. Drops and teaspoons vary in volume and size, affecting the conversion ratio. Choice A (15 drops) is incorrect as it's a common misconception. Choice C (10 drops) and Choice D (30 drops) do not align with the standard conversion of 1 tsp to 60 drops.

4. To assess the kidney function of a patient with an indwelling urinary (Foley) catheter, the nurse measures the hourly urine output. When should she notify the physician?

• A. Less than 30 ml/hour
• B. 64 ml in 2 hours
• C. 90 ml in 3 hours
• D. 125 ml in 4 hours

Correct answer: A

Rationale: Notifying the physician is necessary when the urine output is less than 30 ml/hour as it indicates impaired kidney function. Adequate urine output is essential for monitoring kidney function, and a urine output less than 30 ml/hour could suggest potential renal issues that require medical attention.

5. A healthcare provider is reviewing the laboratory report of a client who has been taking lithium carbonate for the past 12 months. The provider notes a lithium level of 0.8 mEq/L. Which of the following orders from the provider should the healthcare provider expect?

• A. Withhold the next dose
• B. Increase the dosage
• C. Discontinue the medication
• D. Administer the medication

Correct answer: D

Rationale: A lithium level of 0.8 mEq/L falls within the therapeutic range for maintaining the drug's effectiveness while minimizing toxicity. Therefore, the appropriate action would be to continue administering the medication as prescribed by the healthcare provider to maintain the therapeutic effect for the client.

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