A client with a history of chronic obstructive pulmonary disease (COPD) is prescribed oxygen therapy at 2 liters per minute via nasal cannula. What is the most important instruction the nurse should provide?

A. Increase the oxygen flow rate if shortness of breath occurs

B. Use oxygen only when experiencing shortness of breath

C. Do not adjust the oxygen flow rate without consulting a healthcare provider

D. Use a humidifier with the oxygen to prevent dry mucous membranes

Correct Answer: C
Rationale: The most important instruction the nurse should provide to a client with COPD prescribed oxygen therapy is not to adjust the oxygen flow rate without consulting a healthcare provider. This is crucial because too much oxygen can suppress the client's respiratory drive, leading to further complications. Choice A is incorrect because increasing the oxygen flow rate without medical advice can be harmful. Choice B is incorrect as oxygen therapy should be used as prescribed, not just when symptoms occur. Choice D is incorrect as the priority is to ensure the correct oxygen flow rate rather than using a humidifier.

A client is admitted with a diagnosis of congestive heart failure (CHF). Which intervention is most important to include in the plan of care?

• A. Restrict fluid intake
• B. Provide a high-sodium diet
• C. Encourage vigorous exercise
• D. Administer bronchodilators as prescribed

Correct Answer: A
Rationale: The correct answer is A: Restrict fluid intake. Fluid restriction is crucial in the management of congestive heart failure (CHF) as it helps prevent fluid overload, which can exacerbate CHF symptoms. Choices B, C, and D are incorrect. Providing a high-sodium diet would worsen fluid retention and increase the workload of the heart. Encouraging vigorous exercise can strain the heart further in CHF patients. Administering bronchodilators is not the priority intervention for CHF.

A client with a cast complains of numbness and tingling in the affected limb. What should the nurse do first?

• A. Check for tightness of the cast
• B. Elevate the limb
• C. Apply ice to the area
• D. Notify the physician

Correct Answer: A
Rationale: The correct first action for a client with a cast experiencing numbness and tingling in the affected limb is to check for tightness of the cast. Numbness and tingling can indicate compromised circulation, and a tight cast may be causing this. Checking the cast for tightness is essential to ensure it is not impeding circulation. Elevating the limb, applying ice, or notifying the physician can be subsequent actions depending on the assessment findings after checking the cast. Elevating the limb might help improve circulation, applying ice is not indicated for numbness and tingling, and notifying the physician can be done if the issue persists after addressing the immediate concern of cast tightness.

A client with hypothyroidism is taking levothyroxine (Synthroid). Which symptom should prompt the nurse to notify the healthcare provider?

• A. Weight gain
• B. Bradycardia
• C. Nervousness and tremors
• D. Fatigue

Correct Answer: C
Rationale: The correct answer is C: Nervousness and tremors. These symptoms may indicate hyperthyroidism resulting from excessive dosing of levothyroxine. Weight gain (Choice A) is a common symptom of hypothyroidism and may indicate undertreatment or inadequate dosing. Bradycardia (Choice B) is a symptom of hypothyroidism and may improve with levothyroxine therapy; it does not typically indicate an urgent need for healthcare provider notification. Fatigue (Choice D) is a symptom of hypothyroidism and can persist even with levothyroxine treatment, so it is not a symptom that would require immediate notification of the healthcare provider.

The nurse is monitoring a client who started taking a new medication for rheumatoid arthritis. What is the most important aspect to monitor?

• A. Signs of gastrointestinal bleeding
• B. Liver function tests
• C. Renal function tests
• D. All necessary monitoring based on the medication prescribed

Correct Answer: D
Rationale: When a client starts a new medication for rheumatoid arthritis, it is crucial to monitor all necessary aspects based on the specific medication prescribed. Different medications can have varying side effects and impacts on different organ systems. Monitoring all relevant parameters ensures the early detection of any adverse effects and helps to maintain the client's safety. While monitoring for signs of gastrointestinal bleeding, liver function tests, and renal function tests are all important in certain situations, the priority is to conduct comprehensive monitoring based on the medication's known effects.