Nursing Elites

1. After 1 week of hospitalization, Mr. Gray develops hypokalemia. Which of the following is the most significant symptom of his disorder?

• A. Lethargy
• B. Increased pulse rate and blood pressure
• C. Muscle weakness
• D. Muscle irritability

Correct answer: C

Rationale: Muscle weakness is a hallmark symptom of hypokalemia. Hypokalemia refers to low levels of potassium in the blood, which can affect muscle function. The decreased potassium levels can lead to muscle weakness, cramping, and even paralysis. These symptoms can impact various muscle groups in the body, making muscle weakness the most significant symptom to monitor and address in patients with hypokalemia.

2. When caring for a client who is on contact precautions, which of the following measures should the nurse include in the teaching?

• A. Remove the protective gown after leaving the client's room.
• B. Place the client in a room with negative pressure.
• C. Wear gloves when providing care to the client.
• D. Wear a mask when in the client's room.

Correct answer: C

Rationale: Contact precautions are used for clients with known or suspected infections that are spread by direct or indirect contact. The most important measure for healthcare workers when caring for a client on contact precautions is to wear gloves when providing care. This helps prevent the transmission of infectious agents between the client and the healthcare worker. Removing the protective gown after leaving the client's room, placing the client in a room with negative pressure, and wearing a mask when in the client's room are not specific to contact precautions and may not be necessary for all clients on contact precautions.

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. According to the principles of standard precautions, when should gloves be worn by healthcare providers?

• A. Providing a back massage
• B. Feeding a client
• C. Providing hair care
• D. Providing oral hygiene

Correct answer: D

Rationale: Gloves should be worn when providing oral hygiene as it involves potential exposure to bodily fluids, aligning with the standard precautions to prevent the transmission of infections. Providing a back massage, feeding a client, and providing hair care do not typically involve direct exposure to bodily fluids, so wearing gloves is not necessary in these scenarios according to standard precautions.

5. 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.

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