Nursing Elites

1. A nurse is caring for a client who has a new prescription for warfarin. Which of the following laboratory values should the nurse monitor to determine the effectiveness of the medication?

• A. Hemoglobin
• B. Platelet count
• C. Prothrombin time (PT)
• D. International normalized ratio (INR)

Correct answer: D

Rationale: The correct answer is D, International normalized ratio (INR). INR is used to monitor the therapeutic effect of warfarin, an anticoagulant medication. Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors. Monitoring the INR helps assess how well the medication is working to prevent blood clots. Choices A, B, and C are not specific indicators for monitoring the effectiveness of warfarin. Hemoglobin levels primarily assess the oxygen-carrying capacity of red blood cells, platelet count evaluates the clotting ability of blood, and PT measures the time it takes for blood to clot. While these values are important for overall health assessment, they do not directly reflect the anticoagulant effects of warfarin.

2. A nurse in a pediatric unit is preparing to insert an IV catheter for a 7-year-old. Which of the following actions should the nurse take?

• A. Allow the child to handle the IV supplies to become familiar with them.
• B. Tell the child they will feel discomfort during the catheter insertion.
• C. Use a mummy restraint to hold the child during the catheter insertion.
• D. Require the parents to leave the room during the procedure.

Correct answer: B

Rationale: The correct answer is B because informing the child that they will feel discomfort during catheter insertion is crucial to prepare them for the procedure. Choice A is incorrect as children should not handle medical supplies. Choice C is inappropriate as using a restraint can cause anxiety and fear in the child. Choice D is not necessary as having parents present can provide comfort and support to the child during the procedure.

3. Which medication is used to manage hyperthyroidism?

• A. Levothyroxine
• B. Methimazole
• C. Propylthiouracil
• D. Prednisone

Correct answer: B

Rationale: Methimazole is the correct answer. It is commonly used to manage hyperthyroidism by inhibiting the production of thyroid hormones. Levothyroxine (Choice A) is actually a medication used to treat hypothyroidism by supplementing thyroid hormones. Propylthiouracil (Choice C) is another anti-thyroid medication used in the management of hyperthyroidism. Prednisone (Choice D) is a corticosteroid and is not typically used in the treatment of hyperthyroidism.

4. Which lab value is essential for a patient receiving warfarin therapy?

• A. Monitor INR
• B. Monitor sodium levels
• C. Monitor potassium levels
• D. Monitor platelet count

Correct answer: A

Rationale: The correct answer is to monitor the INR (International Normalized Ratio) for a patient receiving warfarin therapy. INR monitoring is crucial to assess the effectiveness of warfarin in preventing blood clots while minimizing the risk of bleeding. Monitoring sodium levels (choice B), potassium levels (choice C), or platelet count (choice D) is not specifically essential for patients on warfarin therapy and does not provide direct information on the drug's anticoagulant effects.

5. A nurse is caring for a client who has left-sided heart failure. Which of the following findings should the nurse expect?

• A. Peripheral edema.
• B. Bradycardia.
• C. Jugular vein distention.
• D. Dependent edema.

Correct answer: C

Rationale: Jugular vein distention is a classic sign of left-sided heart failure due to fluid overload in the pulmonary circulation. This occurs because the heart's left side is unable to pump effectively, causing increased pressure in the pulmonary veins and leading to blood backing up into the pulmonary circulation. Peripheral edema (choice A) and dependent edema (choice D) are more commonly associated with right-sided heart failure where blood pools in the systemic circulation, causing swelling in the extremities. Bradycardia (choice B) is not typically a direct consequence of left-sided heart failure; instead, tachycardia is more commonly seen as the heart compensates for its reduced efficiency.

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