Nursing Elites

1. A nurse is preparing to mix NPH and regular insulin in the same syringe. Which of the following actions should the nurse take?

• A. Inject air into the NPH insulin vial.
• B. Withdraw the prescribed dose of regular insulin.
• C. Withdraw the prescribed dose of NPH insulin.
• D. Mix the two insulins in separate syringes.

Correct answer: A

Rationale: When mixing NPH and regular insulin in the same syringe, the nurse should first inject air into the NPH insulin vial. This action prevents contamination by allowing an easier withdrawal of the correct dose of NPH insulin after withdrawing the regular insulin. Withdrawing the prescribed dose of regular insulin (Choice B) is incorrect as it does not address the initial step of injecting air into the NPH vial. Similarly, withdrawing the prescribed dose of NPH insulin (Choice C) is incorrect as it skips the crucial first step. Mixing the two insulins in separate syringes (Choice D) is not ideal since combining them in one syringe is a common practice to reduce the number of injections for the patient.

2. A client is 2 days postoperative following a hip replacement surgery. Which of the following findings should the nurse report to the provider?

• A. Heart rate of 88/min
• B. Redness and warmth in the calf
• C. Urine output of 30 mL/hr
• D. Heart rate of 96/min

Correct answer: B

Rationale: Redness and warmth in the calf can indicate a deep vein thrombosis (DVT), which is a serious complication following hip replacement surgery. It is crucial to report this finding promptly for further evaluation and intervention. The other options, heart rates of 88/min and 96/min, are within normal limits for an adult and may not require immediate reporting. A urine output of 30 mL/hr is concerning for decreased kidney perfusion, but the priority in this case is the potential DVT due to its severe implications.

3. A client with iron deficiency anemia has a new prescription for ferrous sulfate. Which of the following instructions should the nurse include?

• A. Take with a glass of milk to prevent stomach upset.
• B. Take with orange juice to enhance absorption.
• C. Take on an empty stomach to increase absorption.
• D. Take with food to reduce gastrointestinal upset.

Correct answer: C

Rationale: The correct instruction is to take ferrous sulfate on an empty stomach to increase absorption. This is because taking it with food or dairy products like milk can reduce its absorption. Orange juice is not recommended as it may interfere with the absorption of iron. Taking ferrous sulfate on an empty stomach may cause gastrointestinal upset, but this can be minimized by gradually increasing the dose.

4. Which lab value should be monitored for a patient on warfarin therapy?

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

Correct answer: A

Rationale: The correct answer is to monitor INR for a patient on warfarin therapy. INR monitoring is crucial as it helps assess the therapeutic effectiveness and safety of warfarin. INR stands for International Normalized Ratio, and it measures the blood's ability to clot. Monitoring potassium levels (Choice B) is not specific to warfarin therapy. Monitoring platelet count (Choice C) is important but not the primary lab value for assessing warfarin therapy. Monitoring sodium levels (Choice D) is not directly related to warfarin therapy.

5. A client has a central venous catheter. Which of the following actions should be taken to prevent an air embolism?

• A. Keep the catheter clamped when not in use
• B. Have the client perform the Valsalva maneuver while the catheter is removed
• C. Use a non-coring needle to access the catheter
• D. Flush the catheter with 0.9% sodium chloride every 24 hours

Correct answer: B

Rationale: The correct action to prevent an air embolism in a client with a central venous catheter is to have the client perform the Valsalva maneuver while the catheter is removed. This maneuver helps to close the airway and prevent air from entering the bloodstream. Keeping the catheter clamped at all times (Choice A) is not necessary and may lead to clot formation. Using a non-coring needle (Choice C) is important for accessing the catheter but does not specifically prevent air embolism. Flushing the catheter with 0.9% sodium chloride (Choice D) helps maintain patency but does not directly prevent air embolism.

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