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 receiving heparin therapy. Which of the following laboratory results indicates the client is receiving an effective dose of heparin?

• A. INR 1.5
• B. aPTT 60 seconds
• C. Platelets 150,000/mm³
• D. Potassium 4.0 mEq/L

Correct answer: B

Rationale: An aPTT of 60 seconds indicates the client is receiving an effective dose of heparin. The activated partial thromboplastin time (aPTT) measures the time it takes for a clot to form, and a therapeutic range for heparin therapy is usually 1.5 to 2 times the control value, which is around 60-80 seconds. An INR of 1.5 is not related to heparin therapy, as it is commonly used to monitor warfarin therapy. Platelet count and potassium levels are not direct indicators of the effectiveness of heparin therapy.

3. Which medication is commonly used to treat hyperthyroidism?

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

Correct answer: A

Rationale: Methimazole is the correct answer. It is commonly used to treat hyperthyroidism by inhibiting the production of thyroid hormones. Levothyroxine, on the other hand, is a medication used to treat hypothyroidism by providing synthetic thyroid hormone. Propylthiouracil is another medication used to treat hyperthyroidism by blocking the production of thyroid hormones. Aspirin is not used to treat hyperthyroidism, but rather for pain relief and reducing inflammation.

4. A nurse is caring for a client who has a pulmonary embolism. The nurse should identify which finding as an indication of effective treatment?

• A. A chest x-ray reveals increased density in all lung fields.
• B. The client reports feeling less anxious.
• C. Diminished breath sounds are auscultated bilaterally.
• D. ABG results include a pH of 7.48, PaO2 77 mm Hg, and PaCO2 47 mm Hg.

Correct answer: B

Rationale: The correct answer is B. The client reporting feeling less anxious is a positive indication of effective treatment for a pulmonary embolism. This suggests that the client's condition is improving psychologically. Option A is incorrect because increased density in all lung fields on a chest x-ray may indicate unresolved issues related to the embolism. Option C is incorrect as diminished breath sounds bilaterally suggest a complication or worsening of the condition. Option D is incorrect as ABG results within normal range do not necessarily indicate effective treatment for a pulmonary embolism, as other complications may still be present.

5. A client with a nasogastric tube receiving intermittent enteral feedings should be positioned in which way?

• A. Flush the tube with 15 mL of sterile water before feedings.
• B. Place the client in a supine position during feedings.
• C. Position the client with the head of the bed elevated 45 degrees.
• D. Check gastric residuals every 8 hours.

Correct answer: C

Rationale: Positioning the client with the head of the bed elevated at 45 degrees is crucial during enteral feedings to prevent aspiration. This position helps reduce the risk of regurgitation and aspiration of feedings into the lungs. Option A is not necessary before feedings. Placing the client in a supine position (Option B) increases the risk of aspiration. Checking gastric residuals every 8 hours (Option D) is important but not directly related to positioning during enteral feedings.

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