Nursing Elites

1. A patient has a parenteral nutrition infusion of 25% dextrose. A student nurse asks the nurse why a peripherally inserted central catheter was inserted. Which response by the nurse is most appropriate?

• A. There is a decreased risk for infection when 25% dextrose is infused through a central line.
• B. The prescribed infusion can be given much more rapidly when the patient has a central line.
• C. The 25% dextrose is hypertonic and will be more rapidly diluted when given through a central line.
• D. The required blood glucose monitoring is more accurate when samples are obtained from a central line.

Correct answer: C

Rationale: The 25% dextrose solution is hypertonic. Shrinkage of red blood cells can occur when solutions with dextrose concentrations greater than 10% are administered IV. Blood glucose testing is not more accurate when samples are obtained from a central line. The infection risk is higher with a central catheter than with peripheral IV lines. Hypertonic or concentrated IV solutions are not given rapidly.

2. After receiving change-of-shift report, which patient should the nurse assess first?

• A. Patient with a serum potassium level of 5.0 mEq/L who is complaining of abdominal cramping
• B. Patient with a serum sodium level of 145 mEq/L who has a dry mouth and is asking for a glass of water
• C. Patient with a serum magnesium level of 1.1 mEq/L who has tremors and hyperactive deep tendon reflexes
• D. Patient with a serum phosphorus level of 4.5 mg/dL who has multiple soft tissue calcium-phosphate precipitates

Correct answer: C

Rationale: The correct answer is patient C with a serum magnesium level of 1.1 mEq/L who has tremors and hyperactive deep tendon reflexes. The low magnesium level and neuromuscular irritability suggest that the patient may be at risk for seizures, which are life-threatening. Assessing and addressing this patient's condition promptly is crucial to prevent complications. Patients A, B, and D have mild electrolyte disturbances or symptoms that require attention, but they are not at immediate risk for life-threatening complications like seizures, unlike patient C.

3. Following a thyroidectomy, a patient complains of “a tingling feeling around my mouth.” Which assessment should the nurse complete immediately?

• A. Presence of the Chvostek’s sign
• B. Abnormal serum potassium level
• C. Decreased thyroid hormone level
• D. Bleeding on the patient’s dressing

Correct answer: A

Rationale: The correct assessment the nurse should complete immediately is checking for the presence of the Chvostek’s sign. The patient's complaint of tingling around the mouth is indicative of hypocalcemia, which can result from parathyroid injury/removal during thyroidectomy. The Chvostek’s sign is a clinical indication of hypocalcemia, where facial muscle twitching occurs when the facial nerve is tapped. Assessing serum potassium levels (choice B) is not the priority in this situation. While thyroid hormone levels (choice C) play a role in overall health, they do not directly relate to the patient’s current symptoms. Checking for bleeding on the dressing (choice D) is important but not the immediate priority when addressing potential hypocalcemia.

4. Which task can the registered nurse (RN) caring for a critically ill patient with multiple IV lines delegate to an experienced licensed practical/vocational nurse (LPN/LVN)?

• A. Administer IV antibiotics through the implantable port.
• B. Monitor the IV sites for redness, swelling, or tenderness.
• C. Remove the patient’s nontunneled subclavian central venous catheter.
• D. Adjust the flow rate of the 0.9% normal saline in the peripheral IV line.

Correct answer: B

Rationale: An experienced LPN/LVN can monitor IV sites for signs of infection because it falls within their education, experience, and scope of practice. Administering IV antibiotics through an implantable port, adjusting infusion rates, and removing central catheters are tasks that require RN level education and scope of practice. These activities involve a higher level of assessment, critical thinking, and potential complications that are typically within the RN's domain.

5. Spironolactone (Aldactone), an aldosterone antagonist, is prescribed for a patient. Which statement by the patient indicates that the teaching about this medication has been effective?

• A. I will try to drink at least 8 glasses of water every day.
• B. I will use a salt substitute to decrease my sodium intake.
• C. I will increase my intake of potassium-containing foods.
• D. I will drink apple juice instead of orange juice for breakfast.

Correct answer: D

Rationale: The correct answer is D. Spironolactone is a potassium-sparing diuretic, so patients should choose low-potassium foods. Apple juice is a better choice than orange juice in this case as it is lower in potassium. Option A is incorrect because increasing fluid intake excessively is not necessary. Option B is incorrect as salt substitutes are high in potassium, which should be avoided. Option C is incorrect because patients on spironolactone should avoid increasing their potassium intake.

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