Nursing Elites

1. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which laboratory value is most concerning?

• A. Serum sodium of 135 mEq/L
• B. Serum potassium of 4.0 mEq/L
• C. Serum bicarbonate of 18 mEq/L
• D. Serum glucose of 300 mg/dL

Correct answer: C

Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with COPD as it indicates metabolic acidosis, requiring immediate intervention. In COPD, patients often retain carbon dioxide, leading to respiratory acidosis. A low serum bicarbonate level suggests that the body is compensating for this respiratory acidosis by increasing bicarbonate levels to maintain balance. Therefore, a low serum bicarbonate level in this scenario is alarming. Choices A, B, and D are within normal ranges and not directly related to the acid-base imbalance seen in COPD.

2. After checking the fingerstick glucose at 1630, what action should be implemented?

• A. Notify the healthcare provider.
• B. Administer 8 units of insulin aspart SubQ.
• C. Give an IV bolus of Dextrose 50% 50 ml.
• D. Perform quality control on the glucometer.

Correct answer: B

Rationale: Administering insulin aspart (rapid-acting insulin) is the appropriate action to manage the elevated glucose level of 1630. Choice A, notifying the healthcare provider, is not the immediate action needed for this glucose level. Choice C, giving an IV bolus of Dextrose 50%, would exacerbate hyperglycemia instead of treating it. Choice D, performing quality control on the glucometer, is not relevant to the management of the patient's glucose level at this time.

3. A client with a history of chronic heart failure is admitted with shortness of breath and crackles in the lungs. Which diagnostic test should the nurse anticipate preparing the client for first?

• A. Chest X-ray
• B. Arterial blood gases (ABGs)
• C. Echocardiogram
• D. Electrocardiogram (ECG)

Correct answer: C

Rationale: The correct answer is C: Echocardiogram. An echocardiogram should be performed first to assess ventricular function and evaluate the cause of shortness of breath and crackles in a client with heart failure. An echocardiogram provides valuable information about the heart's structure and function, helping to identify potential issues related to heart failure. Chest X-ray (Choice A) may be done to assess for changes in heart size or fluid in the lungs but does not directly assess heart function. Arterial blood gases (Choice B) may provide information about oxygenation but do not directly evaluate heart function. An electrocardiogram (Choice D) assesses the heart's electrical activity but does not provide detailed information about ventricular function, which is crucial in heart failure management.

4. A client with cirrhosis is admitted with jaundice and ascites. Which intervention should the nurse implement first?

• A. Administer a diuretic as prescribed.
• B. Administer lactulose as prescribed.
• C. Monitor the client's weight daily.
• D. Assess the client's neurological status.

Correct answer: B

Rationale: Administering lactulose is the first priority in managing a client with cirrhosis to reduce ammonia levels and prevent worsening hepatic encephalopathy. Lactulose helps in decreasing the absorption of ammonia in the intestines and promotes its excretion through the stool. This intervention is crucial in preventing the development or progression of hepatic encephalopathy. Administering a diuretic (Choice A) may be necessary to manage ascites, but it is not the priority over lactulose in this scenario. Monitoring the client's weight (Choice C) is important to assess fluid retention but is not the first intervention required. Assessing the client's neurological status (Choice D) is essential in cirrhosis, but administering lactulose takes precedence to prevent hepatic encephalopathy.

5. A client with a history of myocardial infarction is admitted with chest pain. Which laboratory value should the nurse monitor closely?

• A. White blood cell count
• B. Serum creatinine
• C. Troponin level
• D. Hemoglobin level

Correct answer: C

Rationale: The correct answer is C: Troponin level. Troponin levels should be closely monitored in a client with chest pain and a history of myocardial infarction to assess for ongoing myocardial injury. Troponin is a specific marker for myocardial damage. Monitoring white blood cell count (choice A) is not directly related to myocardial infarction. Serum creatinine (choice B) is more indicative of renal function rather than cardiac status. Hemoglobin level (choice D) is important but does not directly reflect ongoing myocardial injury.

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