Nursing Elites

1. Which of the following vascular system changes result from aging?

• A. Increased peripheral resistance of the blood vessels
• B. Decreased blood flow
• C. Increased workload of the left ventricle
• D. All of the above

Correct answer: D

Rationale: As individuals age, various changes occur in the vascular system. These changes include increased peripheral resistance of the blood vessels, decreased blood flow, and an increased workload of the left ventricle. Therefore, all the listed changes result from aging, making option D, 'All of the above,' the correct answer.

2. When is sterile technique used?

• A. During strict isolation procedures
• B. After terminal disinfection is performed
• C. For invasive procedures
• D. When protective isolation is necessary

Correct answer: C

Rationale: Sterile technique is utilized during invasive procedures to prevent the introduction of pathogens, minimizing the risk of infections. This strict approach ensures that the procedure is performed in a sterile environment, reducing the chances of contamination and subsequent complications.

3. A client is to receive a transfusion of packed RBCs. Which of the following actions should the nurse take?

• A. Prime IV tubing with 0.9% sodium chloride
• B. Use a 24-gauge IV catheter
• C. Obtain filterless IV tubing
• D. Place blood in the warmer for 1 hr

Correct answer: A

Rationale: Prior to administering a blood transfusion, it is essential to prime the IV tubing with 0.9% sodium chloride to prevent hemolysis of the blood cells. Using a smaller gauge IV catheter (e.g., 20 or 22 gauge) is recommended for blood transfusions to prevent hemolysis. Filterless IV tubing is contraindicated for blood transfusions as it does not have a filter to trap potential blood clots or debris. Warming blood is unnecessary and could lead to the development of bacteria in the blood product. Therefore, the correct action for the nurse to take is to prime the IV tubing with 0.9% sodium chloride.

4. 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.

5. A healthcare professional is preparing to measure an infant's temperature. Which of the following actions should the healthcare professional take?

• A. Place the tip of the thermometer under the center of the infant's axilla
• B. Pull the pinna of the infant's ear forward before inserting the probe
• C. Insert the probe 3.8 cm (1.5in) into the infant's rectum
• D. Insert the thermometer in front of the infant's tongue

Correct answer: A

Rationale: When measuring an infant's temperature, the most appropriate and non-invasive method is to place the tip of the thermometer under the center of the infant's axilla (armpit). This method is safe, quick, and comfortable for the infant. Inserting the probe into the rectum is invasive and not recommended for routine temperature measurement in infants. Inserting the thermometer in front of the infant's tongue is not a reliable method for measuring temperature. Pulling the pinna of the ear forward is a technique used for adults, not infants.

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