Nursing Elites

1. A patient who has small cell carcinoma of the lung develops syndrome of inappropriate antidiuretic hormone (SIADH). The nurse should notify the healthcare provider about which assessment finding?

• A. Reported weight gain
• B. Serum hematocrit of 42%
• C. Serum sodium level of 120 mEq/L
• D. Total urinary output of 280 mL during the past 8 hours

Correct answer: C

Rationale: The correct answer is C, a serum sodium level of 120 mEq/L. Hyponatremia is the most important finding to report in SIADH. SIADH causes water retention and a decrease in serum sodium levels. Hyponatremia can lead to confusion and other central nervous system effects and requires treatment. Adequate kidney function is indicated by a urinary output of at least 30 mL/hr. A hematocrit level of 42% is normal. Weight gain is expected due to water retention in SIADH.

2. A patient is admitted to the emergency department with severe fatigue and confusion. Laboratory studies are done. Which laboratory value will require the most immediate action by the nurse?

• A. Arterial blood pH is 7.32.
• B. Serum calcium is 18 mg/dL.
• C. Serum potassium is 5.1 mEq/L
• D. Arterial oxygen saturation is 91%.

Correct answer: B

Rationale: The correct answer is B. A serum calcium level of 18 mg/dL is significantly elevated, posing a high risk for cardiac dysrhythmias. Immediate action is required to initiate cardiac monitoring and notify the healthcare provider. While the abnormalities in arterial blood pH, serum potassium, and arterial oxygen saturation also need attention, they are not as immediately life-threatening as the critically high serum calcium level. Therefore, addressing the serum calcium level takes precedence in this scenario.

3. What is the first action the nurse should take when a patient complains of acute chest pain and dyspnea soon after insertion of a centrally inserted IV catheter?

• A. Notify the health care provider.
• B. Offer reassurance to the patient.
• C. Auscultate the patient’s breath sounds
• D. Give the prescribed PRN morphine sulfate IV

Correct answer: C

Rationale: The correct first action for the nurse to take when a patient complains of acute chest pain and dyspnea after the insertion of a centrally inserted IV catheter is to auscultate the patient's breath sounds. This is important to assess for any potential complications such as embolism or pneumothorax, which can present with such symptoms. Auscultation can provide immediate information on the patient's respiratory status and guide further interventions. Notifying the health care provider, offering reassurance, or administering morphine should only be considered after assessing the patient's condition through auscultation.

4. A nurse in the outpatient clinic is caring for a patient who has a magnesium level of 1.3 mg/dL. Which assessment would be most important for the nurse to make?

• A. Daily alcohol intake
• B. Intake of dietary protein
• C. Multivitamin/mineral use
• D. Use of over-the-counter (OTC) laxatives

Correct answer: A

Rationale: The correct answer is A: Daily alcohol intake. Hypomagnesemia is often associated with alcoholism, making it crucial for the nurse to assess the patient's alcohol consumption. Protein intake is not directly related to magnesium levels. The use of over-the-counter laxatives and multivitamin/mineral supplements would typically increase magnesium levels, which are not the focus when dealing with hypomagnesemia.

5. A patient who is lethargic and exhibits deep, rapid respirations has the following arterial blood gas (ABG) results: pH 7.32, PaO2 88 mm Hg, PaCO2 37 mm Hg, and HCO3 16 mEq/L. How should the nurse interpret these results?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: A

Rationale: The patient's pH is below the normal range (7.35-7.45), and the HCO3 is also below the normal range (22-26 mEq/L), indicating an acidic environment, which is consistent with metabolic acidosis. The ABGs provided do not support respiratory acidosis or alkalosis, as the PaCO2 is within the normal range (35-45 mm Hg) despite the patient's deep, rapid respirations. Therefore, the correct interpretation is metabolic acidosis.

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