Nursing Elites

1. 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.

2. A patient comes to the clinic complaining of frequent, watery stools for the last 2 days. Which action should the nurse take first?

• A. Obtain the baseline weight
• B. Check the patient’s blood pressure
• C. Draw blood for serum electrolyte levels
• D. Ask about any extremity numbness or tingling

Correct answer: B

Rationale: The correct answer is to check the patient’s blood pressure. Given the patient's symptoms of frequent, watery stools, there is a concern for fluid volume deficit. Assessing the blood pressure helps determine the patient's perfusion status, which is crucial in managing fluid volume deficits. While obtaining baseline weight, drawing blood for serum electrolyte levels, and asking about extremity numbness or tingling are important assessments, checking the blood pressure takes precedence as it provides immediate information on the patient's circulatory status.

3. When assessing a male client, the nurse finds that he is fatigued, and is experiencing muscle weakness, leg cramps, and cardiac dysrhythmias. Based on these findings, the nurse plans to check the client's laboratory values to validate the existence of which?

• A. Hyperphosphatemia
• B. Hypocalcemia
• C. Hypermagnesemia
• D. Hypokalemia

Correct answer: D

Rationale: The correct answer is D, Hypokalemia. Generalized weakness, muscle weakness, leg cramps, and cardiac dysrhythmias are manifestations of hypokalemia. Checking the potassium level is essential in this case. Hypocalcemia typically presents with facial muscle spasms, not the symptoms mentioned. Hypermagnesemia does not typically cause the symptoms described. It's important to note that orange juice is high in potassium and would be advisable to drink if the patient was hypokalemic. Loose stools are more commonly associated with hyperkalemia, not hypokalemia.

4. A patient has a serum calcium level of 7.0 mEq/L. Which assessment finding is most important for the nurse to report to the health care provider?

• A. The patient is experiencing laryngeal stridor.
• B. The patient complains of generalized fatigue.
• C. The patient has not had a bowel movement for 4 days.
• D. The patient has numbness and tingling of the lips.

Correct answer: A

Rationale: The correct answer is A - 'The patient is experiencing laryngeal stridor.' Hypocalcemia can cause laryngeal stridor, which may lead to respiratory arrest. Rapid action is required to correct the patient’s calcium level to prevent a life-threatening situation. Choices B, C, and D are also symptoms of hypocalcemia, but laryngeal stridor takes precedence due to its potential to quickly progress to a critical condition.

5. A patient who has been receiving diuretic therapy is admitted to the emergency department with a serum potassium level of 3.0 mEq/L. The nurse should alert the healthcare provider immediately that the patient is on which medication?

• A. Oral digoxin (Lanoxin) 0.25 mg daily
• B. Ibuprofen (Motrin) 400 mg every 6 hours
• C. Metoprolol (Lopressor) 12.5 mg orally daily
• D. Lantus insulin 24 U subcutaneously every evening

Correct answer: A

Rationale: The correct answer is A. Hypokalemia increases the risk for digoxin toxicity, which can lead to serious dysrhythmias. Therefore, with a low potassium level, the nurse should immediately alert the healthcare provider about the patient being on oral digoxin. Choices B, C, and D do not pose as much concern with the given potassium level. However, further assessment is still required for these medications.

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