HESI LPN
HESI Fundamentals Practice Questions
1. The healthcare provider is caring for a client receiving total parenteral nutrition (TPN). Which laboratory value should be monitored closely to assess for complications?
- A. Serum sodium
- B. Serum calcium
- C. Blood urea nitrogen (BUN)
- D. Blood glucose
Correct answer: D
Rationale: The correct answer is D: Blood glucose. Monitoring blood glucose levels is crucial for clients receiving total parenteral nutrition (TPN) due to the high glucose content in TPN solutions. TPN delivers essential nutrients, including glucose, directly into the bloodstream. Clients on TPN are at risk of developing hyperglycemia due to the concentrated glucose infusion. Therefore, close monitoring of blood glucose levels is necessary to detect and prevent hyperglycemia-related complications such as osmotic diuresis, hyperosmolarity, and electrolyte imbalances. While serum sodium, serum calcium, and blood urea nitrogen (BUN) levels are important parameters in various clinical scenarios, they are not specifically associated with TPN administration. These values are not the primary indicators to assess for complications in clients receiving TPN.
2. A nurse is preparing to administer ketorolac 0.5 mg/kg IV bolus every 6 hr to a school-age child who weighs 66 lb. The available ketorolac injection is 30 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
- A. 0.5 mL
- B. 1 mL
- C. 1.5 mL
- D. 2 mL
Correct answer: A
Rationale: To calculate the dose, first convert the weight from pounds to kilograms. The child weighs 66 lb, which is approximately 30 kg. The prescribed dose is 0.5 mg/kg, so for a 30 kg child, the dose would be 0.5 mg/kg x 30 kg = 15 mg. Since the available ketorolac injection is 30 mg/mL, the nurse should administer 15 mg รท 30 mg/mL = 0.5 mL per dose. Therefore, choice A (0.5 mL) is the correct answer. Choices B, C, and D are incorrect as they do not accurately calculate the correct dose based on the child's weight and the concentration of the ketorolac injection.
3. After preparing and lubricating the enema set, what is the correct sequence of steps a nurse should follow when administering a large volume enema to a client?
- A. Administer the enema solution.
- B. Remove the enema tube from the client's rectum.
- C. Wrap the end of the enema tube with a disposable tissue.
- D. Insert the enema tube into the client's rectum.
Correct answer: B
Rationale: The correct sequence for administering a large volume enema is as follows: 1. Insert the enema tube into the rectum, 2. Administer the enema solution, 3. Clamp the tube, 4. Remove the tube, 5. Wrap the end with tissue. Therefore, the nurse should remove the enema tube from the client's rectum after administering the enema solution. Choices A, C, and D are incorrect because the enema tube should be removed from the rectum after the administration of the solution, not before or during the process.
4. After abdominal surgery, a client has not urinated since the urinary catheter was removed 8 hours ago. What action should the LPN take first?
- A. Perform a bladder scan to assess for urinary retention.
- B. Encourage the client to drink fluids.
- C. Insert a straight catheter to drain the bladder.
- D. Administer a diuretic as prescribed.
Correct answer: A
Rationale: Performing a bladder scan is the initial step to assess for urinary retention in a postoperative client. This non-invasive technique helps determine the volume of urine in the bladder, guiding further interventions. Encouraging the client to drink fluids (Choice B) may be beneficial but is not the priority when assessing for urinary retention. Inserting a straight catheter (Choice C) should not be the initial action without first assessing for retention. Administering a diuretic (Choice D) should not be done without confirming the need through assessment.
5. A client is recovering from gallbladder surgery performed under general anesthesia. How many times per hour should the nurse encourage the client to use the incentive spirometer?
- A. 4-5 times per hour
- B. 2-3 times per hour
- C. 6-7 times per hour
- D. 8-10 times per hour
Correct answer: A
Rationale: Encouraging the client to use the incentive spirometer 4-5 times per hour is the correct approach post-gallbladder surgery under general anesthesia. This frequency helps prevent respiratory complications, such as atelectasis, by promoting lung expansion. Choices B, C, and D suggest either too few or too many sessions per hour, which may not be optimal for the client's respiratory recovery needs. It is important to strike a balance between ensuring adequate lung expansion and not overexerting the client, which is why 4-5 times per hour is the recommended frequency.
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