Nursing Elites

1. The patient taking spironolactone (Aldactone) makes a statement indicating effective teaching. Which statement shows understanding of the teaching?

• A. I will use salt substitutes to lower my sodium intake
• B. I will increase my intake of foods that are high in potassium
• C. I will call my doctor if I begin having menstrual irregularities
• D. I will take this medication at bedtime each evening

Correct answer: C

Rationale: The correct answer is C because spironolactone is a potassium-sparing diuretic that can cause endocrine effects like menstrual irregularities. Therefore, the patient recognizing the need to report such changes indicates effective teaching. Choices A and B are incorrect as salt substitutes and high-potassium foods should be avoided with spironolactone. Choice D is also incorrect because diuretics, including spironolactone, are ideally taken in the morning to prevent disturbances in sleep due to nocturia.

2. A child is being treated for dehydration with intravenous fluids. The child currently weighs 13 kg and is estimated to have lost 7% of his normal body weight. The nurse is double-checking the IV rate the healthcare provider prescribed. The formula the healthcare provider used was for maintenance fluids: 1000 mL for 10 kg of body weight plus 50 mL for every kilogram over 10 for 24 hours. Replacement fluid is the percentage of lost body weight × 10 per kg of body weight. According to the calculation for maintenance plus replacement fluid, which hourly IV rate will the nurse implement for 24 hours?

• A. 88 mL/hr
• B. 86 mL/hr
• C. 81 mL/hr
• D. 83 mL/hr

Correct answer: B

Rationale: For 13 kg, the maintenance fluid is 1150 mL (1000 mL for first 10 kg + 3*50 mL for the remaining 3 kg). Replacement fluid is 910 mL (0.07 * 13000 mL). Total fluid is 2060 mL, divided by 24 hours is 86 mL/hr.

3. When preparing to insert an intravenous catheter for a 7-year-old child, which of the following actions should a healthcare professional take?

• A. Apply an anesthetic cream to the insertion site 1 hr before the procedure.
• B. Use a 16-gauge needle for the insertion.
• C. Insert the catheter into a vein of the child's dominant hand.
• D. Choose a site over the child's metacarpal veins.

Correct answer: A

Rationale: Applying an anesthetic cream to the insertion site 1 hr before the procedure is crucial when inserting an intravenous catheter in a child to minimize pain and discomfort during the procedure. This practice is especially important in pediatric patients to ensure a more comfortable experience and improve cooperation during the insertion process. Choice B is incorrect as a 16-gauge needle is too large for a child, and a smaller gauge needle is typically used. Choice C is incorrect as the catheter should be inserted into a suitable vein, not specifically the dominant hand vein. Choice D is incorrect as metacarpal veins are usually avoided due to their small size and the potential for complications.

4. Which parental statement indicates correct understanding of preventive techniques for heat-related illnesses when children exercise?

• A. Wearing dark clothing during exercise is not recommended.
• B. Water is the preferred fluid for fluid replenishment.
• C. During activity, stopping for fluids every 15 to 20 minutes is essential.
• D. Hydration should be maintained throughout the exercise session.

Correct answer: C

Rationale: The correct preventive technique for heat-related illnesses during exercise is to stop for fluids every 15 to 20 minutes to prevent dehydration and maintain hydration levels. This practice helps regulate body temperature and prevent heat-related complications. Choice A is incorrect as wearing light-colored, loose-fitting clothing is recommended to reflect sunlight and allow better air circulation. Choice B is incorrect as while water is important, a sports drink containing electrolytes may be more beneficial for longer exercise sessions. Choice D is incorrect as it does not emphasize the importance of regular fluid intake during exercise to prevent dehydration.

5. The renin-angiotensin-aldosterone system plays an important role in maintaining blood pressure. Which compound in this system is most powerful at raising blood pressure?

• A. Angiotensin I
• B. Angiotensin II
• C. Angiotensin III
• D. Renin

Correct answer: B

Rationale: Angiotensin II is the most potent compound in the renin-angiotensin-aldosterone system for raising blood pressure. It acts as a powerful vasoconstrictor, leading to increased systemic vascular resistance. Angiotensin II is formed from angiotensin I through the action of the angiotensin-converting enzyme. While renin initiates the cascade by converting angiotensinogen to angiotensin I, it is angiotensin II that exerts the strongest pressor effect.

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