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 client with a diagnosis of myocardial infarction (MI) is being treated. Which laboratory value would be most concerning?
- A. Troponin level of 0.5 ng/mL
- B. Creatine kinase-MB (CK-MB) of 5.0 ng/mL
- C. Serum potassium of 4.5 mEq/L
- D. Blood glucose of 180 mg/dL
Correct answer: A
Rationale: A troponin level of 0.5 ng/mL is elevated, indicating myocardial damage, making it the most concerning finding in a client with a myocardial infarction (MI). Troponin is a highly specific marker for cardiac muscle damage, and elevated levels suggest ongoing injury to the heart muscle. While Creatine kinase-MB (CK-MB) is also a cardiac enzyme, troponin is more specific and sensitive for myocardial damage. Serum potassium and blood glucose levels are important parameters to monitor in MI patients, but in this scenario, the elevated troponin level takes precedence as it directly reflects cardiac injury.
3. A group of newly licensed nurses is being taught about the Braden Scale by a nurse. Which of the following responses by a newly licensed nurse indicates an understanding of the teaching?
- A. “The client’s age is not a factor in the measurement.”
- B. “The scale measures six elements.”
- C. “A lower score indicates a higher risk of pressure ulcers.”
- D. “Each element is scored on a range from 1 to 4 points.”
Correct answer: B
Rationale: Choice B is the correct answer because the Braden Scale measures six elements: Sensory Perception, Moisture, Activity, Mobility, Nutrition, Friction, and Shear. The other choices are incorrect because: Choice A states that the client's age is not a factor in the measurement, which is accurate as age is not included in the Braden Scale. Choice C incorrectly states that a lower score indicates a higher risk of pressure ulcers, which is the opposite of how the Braden Scale works. Choice D inaccurately describes the scoring range of each element on the Braden Scale, which is not from 1 to 4 points but rather from 1 to 3.
4. How can the LPN/LVN best handle the situation of a postoperative client being kept awake by a neighboring client with dementia who sings all night?
- A. Tell the neighboring client to stop singing.
- B. Close the doors to both clients' rooms at night.
- C. Give the complaining client the prescribed sedative as needed.
- D. Move the neighboring client to a room at the end of the hall.
Correct answer: D
Rationale: The best way to handle the situation in this scenario is to move the neighboring client to a room at the end of the hall. This solution is considerate to both clients because it addresses the issue by providing a quieter environment for the client with dementia while allowing the postoperative client to rest. Choice A is inappropriate as it does not address the root cause of the problem and may not be feasible or respectful. Choice B of closing the doors may not effectively reduce the noise disturbance. Choice C of giving the complaining client sedatives should be the last resort and not the initial solution, as it does not address the underlying issue causing the disturbance.
5. A healthcare provider is assessing a client with a diagnosis of acute pancreatitis. Which laboratory value would be most concerning?
- A. Serum amylase of 200 U/L
- B. Serum lipase of 250 U/L
- C. Blood glucose of 200 mg/dL
- D. Serum calcium of 7.5 mg/dL
Correct answer: D
Rationale: In acute pancreatitis, hypocalcemia (low serum calcium) is a critical finding that is associated with a poor prognosis and requires immediate attention. Serum amylase and lipase are typically elevated in acute pancreatitis due to pancreatic inflammation, but they are not indicators of severity. Blood glucose levels may be elevated due to stress or underlying conditions but are not directly related to the severity of acute pancreatitis. Therefore, the most concerning value in this scenario is the low serum calcium level, which can have significant implications for the client's prognosis.
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