HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is planning to collect a liquid stool specimen from a client for ova and parasites. Inaccurate test results may result if the healthcare professional:
- A. Refrigerates the collected specimen
- B. Collects the specimen in a sterile container
- C. Delays the collection of the specimen
- D. Uses a non-contaminated collection container
Correct answer: A
Rationale: Refrigeration can kill the ova and parasites present in the stool specimen, leading to inaccurate test results. Storing the specimen in a cold environment can disrupt the integrity of the parasites and ova, affecting the accuracy of the test. Collecting the specimen in a sterile container (Choice B) is the correct procedure to prevent external contamination. Delaying the collection of the specimen (Choice C) may affect the freshness of the sample but does not directly impact the test results. Using a non-contaminated collection container (Choice D) is essential to maintain the sample's integrity but does not relate to the risk of killing ova and parasites through refrigeration.
2. A healthcare professional is reviewing the laboratory values for a client who has a positive Chvostek's sign. Which of the following laboratory findings should the healthcare professional expect?
- A. Decreased calcium
- B. Elevated potassium
- C. Increased sodium
- D. Low hemoglobin
Correct answer: A
Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.
3. During a physical assessment, a nurse is assessing 4 adult clients. Which of the following physical assessment techniques should the nurse use?
- A. Ensure the bladder of the BP cuff surrounds 80% of their arm.
- B. Use the BP cuff on the forearm if the upper arm is not accessible.
- C. Apply the BP cuff loosely around the arm.
- D. Use a pediatric cuff for adults with small arms.
Correct answer: A
Rationale: The correct answer is to ensure the bladder of the BP cuff surrounds 80% of the arm. This technique is crucial for obtaining accurate blood pressure readings. Choice B is incorrect because using the BP cuff on the forearm may lead to inaccurate readings. Choice C is incorrect as applying the BP cuff loosely can also result in inaccurate measurements. Choice D is incorrect because using a pediatric cuff for adults with small arms would not provide accurate blood pressure readings.
4. The healthcare professional is caring for a client who is post-operative following a hip replacement. Which assessment finding would require immediate intervention?
- A. Pain at the surgical site
- B. Swelling in the affected leg
- C. Elevated temperature
- D. Shortness of breath
Correct answer: D
Rationale: Shortness of breath is a critical assessment finding that could indicate a pulmonary embolism or other serious complication related to surgery, such as a respiratory issue or cardiac problem. Immediate intervention is necessary to prevent further complications or harm to the client. Pain at the surgical site is common post-operatively and can be managed with appropriate pain relief measures. Swelling in the affected leg is expected after a hip replacement and can often be managed conservatively or monitored closely. An elevated temperature could be a sign of infection, which is important to address but may not require immediate intervention unless other symptoms of sepsis are present.
5. The nurse admits a 7 year-old to the emergency room after a leg injury. The x-rays show a femur fracture near the epiphysis. The parents ask what will be the outcome of this injury. The appropriate response by the nurse should be which of these statements?
- A. The injury is expected to heal quickly because of thin periosteum.
- B. In some instances the result is a retarded bone growth.
- C. Bone growth is stimulated in the affected leg.
- D. This type of injury shows more rapid union than that of younger children.
Correct answer: B
Rationale: A fracture near the epiphysis can result in retarded bone growth, so this should be communicated to the parents.
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