Nursing Elites

1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?

• A. It dissolves blood clots
• B. It prevents the blood from clotting
• C. It thins the blood
• D. It decreases the risk of infection

Correct answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

2. A client with chronic obstructive pulmonary disease (COPD) is receiving oxygen at 2 liters per minute via nasal cannula. The client reports difficulty breathing. What action should the nurse take first?

• A. Increase the oxygen flow rate
• B. Instruct the client to breathe deeply and cough
• C. Check the client's oxygen saturation level
• D. Place the client in a high-Fowler's position

Correct answer: C

Rationale: The correct action for the nurse to take first when a client with COPD reports difficulty breathing while receiving oxygen is to check the client's oxygen saturation level. This helps in determining the adequacy of oxygenation and identifying the cause of the breathing difficulty. Increasing the oxygen flow rate (Choice A) may not be appropriate without knowing the current oxygen saturation level. Instructing the client to breathe deeply and cough (Choice B) may not address the immediate need for oxygen assessment. Placing the client in a high-Fowler's position (Choice D) can help with breathing but should come after ensuring proper oxygenation.

3. The nurse enters the room of a client with a nasogastric tube who is receiving continuous feeding. The nurse observes that the client is coughing and that the infusion pump is alarming. What action should the nurse take first?

• A. Auscultate the client's breath sounds
• B. Turn the client to the side
• C. Stop the feeding infusion
• D. Notify the healthcare provider

Correct answer: C

Rationale: The correct action for the nurse to take first in this situation is to stop the feeding infusion. Coughing in a client with a nasogastric tube can indicate aspiration, which can be a serious complication. By stopping the feeding infusion immediately, the nurse can prevent further aspiration and related complications. Auscultating breath sounds or turning the client to the side may be necessary actions but addressing the feeding infusion is the priority. Notifying the healthcare provider can be done after the immediate issue of potential aspiration is managed.

4. The nurse in a community health clinic is interviewing a female client who has three children. The client tells the nurse that she has a new man in her life, with whom she is having a sexual relationship, and that they both smoke cigarettes. Which information is most important for the nurse to provide this client?

• A. Oral contraceptives should be started to prevent an unwanted pregnancy
• B. Children are more prone to upper respiratory infections if exposed to smoke at home
• C. Cigarette smoking increases the risk for peptic ulcers and emphysema
• D. A diaphragm and condom provide effective contraception when used together

Correct answer: D

Rationale: The most important information for the nurse to provide the client in this situation is that using both a diaphragm and a condom together provides effective contraception and also protects against sexually transmitted diseases (STDs). While oral contraceptives can help prevent unwanted pregnancies, using a barrier method like a diaphragm and a condom is crucial in this scenario where the client is engaging in a new sexual relationship. Choice B is important information but is not the top priority in this context. Choice C, although relevant, does not address the immediate concern of contraception and STD prevention. Therefore, the correct answer is D.

5. The nurse is administering total parenteral nutrition (TPN) via a central line at 75 ml/hour to a client who had a bowel resection 4 days ago. Which laboratory finding requires the most immediate intervention by the nurse?

• A. Blood glucose of 140 mg/dL
• B. White blood cell count of 8000/mm³
• C. Serum potassium of 3.8 mEq/L
• D. Serum calcium of 7.8 mg/dL

Correct answer: D

Rationale: The correct answer is D. A serum calcium level of 7.8 mg/dL requires immediate intervention due to the risk of hypocalcemia. Hypocalcemia can lead to serious complications such as tetany, seizures, and cardiac arrhythmias. The other laboratory findings are within normal limits or slightly elevated, which do not pose an immediate threat to the client's health in this scenario.

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