HESI LPN
HESI Fundamentals 2023 Test Bank
1. 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.
2. A patient has damage to the cerebellum. Which disorder is most important for the nurse to assess?
- A. Impaired balance
- B. Hemiplegia
- C. Muscle sprain
- D. Lower extremity paralysis
Correct answer: A
Rationale: When the cerebellum is damaged, it leads to impaired balance. The cerebellum plays a crucial role in coordinating movements and maintaining balance. Therefore, assessing the patient's balance is essential in determining the extent of cerebellar damage. Options B, C, and D are incorrect because hemiplegia refers to paralysis of one side of the body, muscle sprain is a soft tissue injury, and lower extremity paralysis involves loss of function in the lower limbs. These conditions are not directly associated with damage to the cerebellum.
3. An unlicensed assistive personnel (UAP) places a client in a left lateral position before administering a soap suds enema. Which instruction should the LPN/LVN provide the UAP?
- A. Position the client on the right side of the bed in reverse Trendelenburg.
- B. Fill the enema container with 1000 ml of warm water and 5 ml of castile soap.
- C. Reposition the client in a Sim's position with the weight on the anterior ilium.
- D. Raise the side rails on both sides of the bed and elevate the bed to waist level.
Correct answer: C
Rationale: The correct instruction the LPN/LVN should provide to the UAP is to reposition the client in a Sim's position with the weight on the anterior ilium for administering a soap suds enema. This position helps facilitate the administration of the enema by providing better access and comfort for the client. Choice A is incorrect as reverse Trendelenburg is not the appropriate position for administering a soap suds enema. Choice B is incorrect as the concentration of soap in the enema solution is not specified and might be too strong. Choice D is incorrect as raising the side rails and elevating the bed does not directly relate to the proper positioning for administering the enema.
4. 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.
5. When reviewing a client’s fluid and electrolyte status, what should the nurse report to the provider?
- A. Potassium 5.4
- B. Sodium 140
- C. Calcium 8.6
- D. Magnesium 2.0
Correct answer: A
Rationale: The correct answer is A: 'Potassium 5.4'. A potassium level of 5.4 is elevated (normal range is typically 3.5-5.0 mEq/L) and may indicate hyperkalemia, which can have serious cardiac implications. Elevated potassium levels can lead to life-threatening arrhythmias, so immediate reporting and intervention are necessary. Choice B, 'Sodium 140', falls within the normal range (135-145 mEq/L) and does not require immediate reporting. Choice C, 'Calcium 8.6', falls within the normal range (8.5-10.5 mg/dL) and is not an immediate concern. Choice D, 'Magnesium 2.0', is within the normal range (1.5-2.5 mEq/L) and does not need urgent reporting. Therefore, the nurse should prioritize reporting the elevated potassium level as it poses the most immediate risk.
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