Nursing Elites

1. Why is lactated Ringer’s solution given to a patient experiencing vomiting and diarrhea?

• A. To increase interstitial and intracellular hydration
• B. To maintain plasma volume over time
• C. To pull water from the interstitial space into the extracellular fluid
• D. To replace water and electrolytes

Correct answer: D

Rationale: Lactated Ringer’s solution is an isotonic solution commonly used to replace water and electrolytes lost due to conditions like vomiting and diarrhea. It helps to restore fluid balance by replacing the lost volume and electrolytes. Option A is incorrect because hypotonic fluids, not lactated Ringer’s solution, increase interstitial and intracellular hydration. Option B is incorrect as colloidal solutions, not lactated Ringer’s solution, are used to maintain plasma volume over time. Option C is incorrect as hypertonic solutions, not lactated Ringer’s solution, pull water from the interstitial space into the extracellular fluid.

2. Which of the following conditions is the most significant risk factor for the development of type 2 diabetes mellitus?

• A. Cigarette smoking.
• B. High-cholesterol diet.
• C. Obesity.
• D. Hypertension.

Correct answer: C

Rationale: Obesity is the most significant risk factor for developing type 2 diabetes mellitus due to its role in insulin resistance. Excess body fat, especially around the abdomen, leads to increased production of inflammatory markers and hormones that can cause insulin resistance. While cigarette smoking, high-cholesterol diet, and hypertension can contribute to health issues, they are not as directly linked to the development of type 2 diabetes mellitus as obesity.

3. A client is starting urinary bladder training. Which statement should the nurse include in this client’s teaching?

• A. Use the toilet when you first feel the urge, rather than at specific intervals.
• B. Try to consciously hold your urine until the scheduled toileting time.
• C. Initially try to use the toilet at least every half hour for the first 24 hours.
• D. The toileting interval can be increased once you have been continent for a week.

Correct answer: B

Rationale: In urinary bladder training, the client should be taught to try to consciously hold their urine until the scheduled toileting time. This helps in training the bladder to hold urine for longer periods. Option A is incorrect because the goal is to consciously hold urine, not void immediately. Option C is incorrect as toileting at least every half hour may not promote bladder training. Option D is incorrect as increasing the toileting interval should be based on the client's comfort and progress, not just after being continent for a week.

4. In a client with congestive heart failure, the nurse would be correct in withholding a dose of digoxin without specific instruction from the healthcare provider if the client's

• A. serum digoxin level is 1.5 ng/mL.
• B. blood pressure is 104/68 mmHg.
• C. serum potassium level is 3 mEq/L.
• D. apical pulse is 68/min.

Correct answer: C

Rationale: The correct answer is C. Hypokalemia can precipitate digitalis toxicity in individuals on digoxin, increasing the risk of dangerous dysrhythmias. A serum potassium level of 3 mEq/L is below the normal range (3.5 to 5.5 mEq/L) and indicates hypokalemia, which can potentiate the effects of digoxin. Choices A, B, and D are not directly related to the potential for digitalis toxicity. Serum digoxin level of 1.5 ng/mL is within the therapeutic range, blood pressure of 104/68 mmHg is not a contraindication for administering digoxin, and an apical pulse of 68/min is within the normal range and not a reason to withhold digoxin.

5. Which of the following interventions is most appropriate for a patient with acute pancreatitis?

• A. Administering oral fluids.
• B. Administering IV fluids.
• C. Administering analgesics.
• D. Encouraging the patient to ambulate.

Correct answer: B

Rationale: The most appropriate intervention for a patient with acute pancreatitis is administering IV fluids. IV fluid administration is crucial in managing acute pancreatitis as it helps maintain hydration, correct electrolyte imbalances, and prevent shock. Administering oral fluids (Choice A) may not be sufficient to address the fluid loss and maintain hydration in these patients. While analgesics (Choice C) are important for pain management in pancreatitis, addressing hydration and shock prevention takes precedence. Encouraging the patient to ambulate (Choice D) may be beneficial in some cases for preventing complications like deep vein thrombosis, but it is not the primary intervention needed in the acute phase of pancreatitis.

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