HESI LPN
HESI Practice Test for Fundamentals
1. The nurse is assessing a 17-year-old female client with bulimia. Which of the following laboratory reports would the nurse anticipate?
- A. Increased serum glucose
- B. Decreased albumin
- C. Decreased potassium
- D. Increased sodium retention
Correct answer: C
Rationale: The correct answer is C, 'Decreased potassium.' Clients with bulimia often have decreased potassium levels due to frequent vomiting, which causes a loss of this essential electrolyte. This loss can lead to various complications such as cardiac arrhythmias. Option A, 'Increased serum glucose,' is not typically associated with bulimia. Option B, 'Decreased albumin,' is more related to malnutrition or liver disease rather than bulimia. Option D, 'Increased sodium retention,' is not a common finding in clients with bulimia; instead, they may experience electrolyte imbalances like hyponatremia due to purging behaviors.
2. A cerebrovascular accident patient is placed on a ventilator. The client’s daughter arrives with a durable power of attorney and a living will that indicates no extraordinary life-saving measures. What action should the nurse take?
- A. Refer to the risk manager
- B. Notify the healthcare provider
- C. Discontinue the ventilator
- D. Review the medical record
Correct answer: B
Rationale: The correct action for the nurse to take is to notify the healthcare provider. In this situation, involving the healthcare provider ensures appropriate review and adherence to legal and ethical standards based on the living will and durable power of attorney. Referring to the risk manager may not be directly related to the immediate decision-making process regarding the ventilator. Discontinuing the ventilator without proper authorization from the healthcare provider could lead to legal and ethical implications. Reviewing the medical record alone may not provide guidance on how to proceed with the specific instructions from the living will and durable power of attorney.
3. A client with chronic kidney disease is being assessed. Which laboratory value would be most concerning?
- A. Serum creatinine of 3.0 mg/dL
- B. Blood urea nitrogen (BUN) of 45 mg/dL
- C. Serum potassium of 6.5 mEq/L
- D. Hemoglobin of 10 g/dL
Correct answer: C
Rationale: In a client with chronic kidney disease, an elevated serum potassium level (hyperkalemia) is the most concerning finding. Hyperkalemia can lead to life-threatening cardiac dysrhythmias due to its effect on the electrical conduction system of the heart. Monitoring and managing serum potassium levels are crucial in patients with chronic kidney disease to prevent serious complications. While elevated serum creatinine (Choice A) and Blood Urea Nitrogen (BUN) levels (Choice B) indicate impaired kidney function, hyperkalemia poses an immediate risk of cardiac complications. Hemoglobin levels (Choice D) are typically lower in chronic kidney disease due to decreased erythropoietin production, but they do not present an immediate life-threatening risk like hyperkalemia.
4. After repositioning a client who reports shortness of breath, which of the following actions should the nurse take next?
- A. Observe the rate, depth, and character of the client's respirations.
- B. Take the client’s blood pressure.
- C. Assess the client's pulse.
- D. Offer supplemental oxygen.
Correct answer: A
Rationale: Observing the rate, depth, and character of the client's respirations is crucial after repositioning a client experiencing shortness of breath. This action provides immediate information about the client's respiratory status. Checking blood pressure (Choice B) is not the priority in this situation, as assessing respirations is more urgent. Assessing the pulse (Choice C) is also important but does not provide direct information about the client's respiratory status. Offering supplemental oxygen (Choice D) may be necessary based on the assessment of respirations, but it should not be the first action taken without assessing the client's breathing pattern.
5. A client with a new colostomy is being taught how to irrigate the ostomy. The healthcare provider realizes that the client needs further teaching when the client:
- A. Positions the irrigating solution bag 30 inches below the stoma
- B. Uses an open system for irrigation
- C. Irrigates the colostomy twice a day
- D. Cleans the stoma with harsh chemicals
Correct answer: A
Rationale: The correct answer is A. Positioning the irrigating solution bag 30 inches below the stoma would cause discomfort and ineffective irrigation as the bag should be positioned at a lower level. Option B is incorrect because a closed system for irrigation is the preferred method for colostomy irrigation. Option C is incorrect as colostomy irrigation is typically done once a day unless otherwise instructed by a healthcare provider. Option D is incorrect as the stoma should be cleaned with mild soap and water to prevent skin irritation and damage.
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