which serum blood findings with diabetic ketoacidosis alerts the nurse that immediate action is required
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Nursing Elites

HESI LPN

HESI Fundamentals 2023 Test Bank

1. Which serum blood finding in diabetic ketoacidosis alerts the nurse that immediate action is required?

Correct answer: C

Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.

2. A client with an NG tube is receiving intermittent feedings through an open system. Which of the following actions should the nurse take first?

Correct answer: B

Rationale: The correct answer is to tell the client to keep the head of the bed elevated at least 30°. Elevating the head of the bed prevents aspiration of the enteral formula, which is a priority in caring for a client with an NG tube. This action helps in reducing the risk of complications such as pneumonia. Choices A, C, and D are incorrect. While rinsing the feeding bag, ensuring the enteral formula temperature, and maintaining cleanliness are important aspects of enteral feeding care, the priority is to prevent aspiration by keeping the head of the bed elevated. These actions can be implemented after ensuring the client's safety by maintaining the correct bed position.

3. After abdominal surgery, a client has not urinated since the urinary catheter was removed 8 hours ago. What action should the LPN take first?

Correct answer: A

Rationale: Performing a bladder scan is the initial step to assess for urinary retention in a postoperative client. This non-invasive technique helps determine the volume of urine in the bladder, guiding further interventions. Encouraging the client to drink fluids (Choice B) may be beneficial but is not the priority when assessing for urinary retention. Inserting a straight catheter (Choice C) should not be the initial action without first assessing for retention. Administering a diuretic (Choice D) should not be done without confirming the need through assessment.

4. A client is 6 hours postoperative following abdominal surgery and is having difficulty voiding. Which of the following actions should the nurse take?

Correct answer: A

Rationale: The correct action for the nurse to take in this situation is to allow the client to hear running water while attempting to void. This can help stimulate the urge to urinate in a non-invasive way, promoting natural voiding. Providing a bedpan while sitting upright is also a suitable approach to facilitate voiding by encouraging a more natural position. Inserting an indwelling urinary catheter should be a last resort due to infection risks and discomfort associated with catheterization. Encouraging the client to limit fluid intake is not appropriate as hydration is crucial for overall health and can aid in promoting voiding. Therefore, the best initial intervention to promote voiding in this scenario is to allow the client to hear running water.

5. A client with chronic kidney disease is being assessed. Which of the following laboratory values would be most concerning?

Correct answer: B

Rationale: In a client with chronic kidney disease, elevated serum potassium levels (hyperkalemia) are the most concerning finding. Hyperkalemia can lead to life-threatening cardiac dysrhythmias. Monitoring and managing serum potassium levels are crucial in patients with kidney disease to prevent severe complications. While elevated creatinine (Choice A) and BUN (Choice C) are indicative of impaired kidney function, hyperkalemia poses a more immediate threat to the client's health. Hemoglobin levels (Choice D) can be affected by chronic kidney disease but are not as acutely dangerous as severe hyperkalemia.

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