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 client is being treated for diabetic ketoacidosis (DKA). Which laboratory value would be most concerning?
- A. Blood glucose of 350 mg/dL
- B. Serum bicarbonate of 18 mEq/L
- C. Arterial pH of 7.20
- D. Serum potassium of 5.5 mEq/L
Correct answer: C
Rationale: In a client with diabetic ketoacidosis (DKA), the most concerning laboratory value is an arterial pH of 7.20. An arterial pH of 7.20 indicates severe acidosis, which is a critical condition requiring immediate intervention. This pH level reflects a significant imbalance in the body's acid-base status, potentially leading to serious complications. High blood glucose levels (choice A) are expected in DKA but do not directly indicate the severity of acidosis. A serum bicarbonate level of 18 mEq/L (choice B) is low but not as immediately critical as a pH of 7.20. Serum potassium of 5.5 mEq/L (choice D) is elevated, which can occur in DKA due to insulin deficiency, but it is not the most concerning value in this scenario.
3. A client is being taught how to administer ear drops. Which of the following statements should the nurse identify as an indication that the client understands?
- A. I will straighten my ear canal by pulling my ear down and back.
- B. I will gently apply pressure with my finger to the front part of my ear after putting in the drops.
- C. I will insert the nozzle of the ear drop bottle snugly into my ear before squeezing the drops in.
- D. After the drops are in, I will place a cotton ball all the way into my ear canal.
Correct answer: B
Rationale: The correct answer is B. Gently applying pressure to the front part of the ear after administering drops helps with absorption. Pulling the ear down and back is a correct technique for adults. Snugly inserting the nozzle of the ear drop bottle or placing a cotton ball all the way into the ear canal is unnecessary and can potentially cause harm or discomfort. Therefore, choices A, C, and D are incorrect.
4. While bathing a patient, the nurse notices movement in the patient's hair. What action should the nurse take?
- A. Use gloves to inspect the hair.
- B. Apply a lindane-based shampoo immediately.
- C. Shave the patient's hair off.
- D. Ignore the movement and continue.
Correct answer: A
Rationale: When a nurse suspects pediculosis capitis (head lice) upon noticing movement in the patient's hair, the correct action is to use gloves to inspect the hair. This protects the nurse from potential self-infestations. Applying a lindane-based shampoo immediately (Choice B) is not the first action, as diagnosis and confirmation are necessary before treatment. Shaving the patient's hair off (Choice C) is an extreme measure and is unnecessary at this stage. Ignoring the movement and continuing (Choice D) is negligent and can lead to the spread of infestation.
5. A client recovering from lung cancer is advised to resume lower-intensity activities of daily living. Which of the following activities should the nurse recommend to the client?
- A. Washing dishes
- B. Mowing the lawn
- C. Carrying heavy groceries
- D. Gardening
Correct answer: A
Rationale: The correct answer is A: Washing dishes. Washing dishes is a lower-intensity activity that is suitable for a client recovering from lung cancer. This activity does not require significant physical exertion and allows the client to engage in a manageable task while still following the provider's instructions for lower-intensity activities. Choices B, C, and D involve more physical effort and may not be appropriate for a client recovering from lung cancer, as they require more energy and physical strain, which could hinder the recovery process.
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