HESI LPN
HESI Fundamentals Study Guide
1. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
2. A healthcare professional is caring for a client who has a prescription for a vest restraint. Which of the following actions should the healthcare professional take?
- A. Tie the restraint with a quick-release knot.
- B. Use a slipknot to secure the restraint.
- C. Ensure the restraint is tightly secured.
- D. Attach the restraint to the bed frame.
Correct answer: A
Rationale: The correct action for the healthcare professional to take when applying a vest restraint is to tie it with a quick-release knot. A quick-release knot allows for easy and rapid removal in case of an emergency, ensuring the safety of the client. Using a slipknot (Choice B) is not recommended as it may not provide quick release in emergencies. Ensuring the restraint is tightly secured (Choice C) can be dangerous as it can restrict circulation or cause discomfort. Attaching the restraint to the bed frame (Choice D) is inappropriate and can lead to potential harm or injury to the client.
3. A client is expressing anger over his diagnosis of colorectal cancer. Which of the following actions should the nurse take?
- A. Discuss the risk factors for colorectal cancer.
- B. Focus teaching on addressing the client's anger and emotional response.
- C. Provide the client with emotional support and reassurance about his feelings.
- D. Reassure the client that this is an expected response to grief.
Correct answer: D
Rationale: The correct answer is D. During the anger stage of grief, it is essential for the nurse to reassure the client that anger is a normal reaction to a cancer diagnosis. This validation of the client's emotions can help in providing emotional support. Choice A is incorrect because discussing risk factors for colorectal cancer does not address the client's current emotional state. Choice B is incorrect because focusing teaching on the client's future management does not directly address the client's need for emotional support in the present. Choice C is incorrect because providing written information about loss and grief phases is not as immediately comforting as directly reassuring the client about his feelings of anger.
4. The healthcare professional is evaluating the body alignment of a patient in the sitting position. Which observation will indicate a normal finding?
- A. The edge of the seat is making contact with the popliteal space.
- B. Both feet are supported on the floor with ankles flexed.
- C. The body weight is solely on the buttocks.
- D. The arms hang comfortably at the sides.
Correct answer: B
Rationale: In a normal sitting position, both feet should be supported on the floor with the ankles comfortably flexed. This position helps in maintaining stability and proper alignment. Choice A is incorrect because the edge of the seat pressing against the popliteal space may cause discomfort and is not indicative of proper alignment. Choice C is incorrect as the body weight should be evenly distributed for proper alignment and comfort, not solely on the buttocks. Choice D is incorrect as the position of the arms alone does not indicate proper body alignment in the sitting position; proper arm positioning is important for comfort but not a key indicator of body alignment.
5. The patient is receiving chemotherapy for breast cancer. Which of the following laboratory values would be most important to monitor?
- A. White blood cell count
- B. Hemoglobin level
- C. Serum creatinine
- D. Blood glucose level
Correct answer: A
Rationale: Monitoring the white blood cell count is crucial when a patient is undergoing chemotherapy for breast cancer. Chemotherapy can lead to neutropenia, a condition of low white blood cell count, which significantly increases the risk of infections. Monitoring white blood cell count helps healthcare providers intervene promptly to prevent severe infections. Hemoglobin level, while important in assessing oxygen-carrying capacity, is not the priority in this scenario. Serum creatinine and blood glucose levels are not directly impacted by chemotherapy for breast cancer.
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