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. After inserting an NG tube for a client, which of the following assessment findings should the nurse expect to confirm correct tube placement?
- A. An x-ray shows the end of the tube above the pylorus.
- B. The tube is aspirated and contains clear gastric fluid.
- C. The tube is flushed with sterile water without resistance.
- D. The client does not cough or choke during tube insertion.
Correct answer: B
Rationale: Correct placement of an NG tube is confirmed by aspirating gastric fluid, which indicates that the tube is in the stomach. An x-ray can help visualize tube placement, but it alone does not confirm correct placement. Flushing the tube with sterile water without resistance indicates patency but not necessarily correct placement. The absence of coughing or choking does not confirm tube placement and is more related to the client's comfort during the procedure.
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. A nurse on a med-surg unit is teaching a newly licensed nurse about tasks to delegate to APs. Which of the following statements by the newly licensed nurse indicates an understanding of the teaching?
- A. An AP may take orthostatic blood pressure measurements from a client who reports dizziness.
- B. An AP may monitor the peripheral IV insertion site of a client who is receiving replacement fluids.
- C. An AP may perform a central line dressing change for a client who is ready for discharge.
- D. An AP may ambulate a client who had a stroke 2 days ago.
Correct answer: D
Rationale: The correct answer is D. Delegating the task of ambulating a client who had a stroke 2 days ago to an AP is appropriate. This task falls within the scope of practice for an AP and can help promote mobility and prevent complications. Choices A, B, and C involve more complex nursing assessments or procedures that require a higher level of training and expertise. Taking orthostatic blood pressure measurements, monitoring a peripheral IV insertion site, and performing a central line dressing change should be tasks performed by licensed nurses to ensure proper assessment and management of the client's condition.
5. The nurse is caring for a client with a nasogastric (NG) tube. Which action should the LPN/LVN take to maintain patency of the tube?
- A. Flush the tube with 30 ml of water before and after medication administration.
- B. Secure the tube to the client's gown.
- C. Check the placement of the tube by auscultation.
- D. Irrigate the tube with normal saline every shift.
Correct answer: A
Rationale: The correct action to maintain patency of a nasogastric (NG) tube is to flush the tube with water before and after medication administration. Flushing helps prevent clogging and ensures that the tube remains clear for proper functioning. Securing the tube to the client's gown (Choice B) is important for stability but does not directly address tube patency. Checking the placement of the tube by auscultation (Choice C) is crucial for verifying correct placement but does not specifically relate to maintaining tube patency. Irrigating the tube with normal saline every shift (Choice D) is not a routine practice for maintaining tube patency and can lead to electrolyte imbalances.
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