HESI LPN
HESI Fundamental Practice Exam
1. The nurse is preparing to administer a medication through a nasogastric (NG) tube. Which action should the LPN/LVN take to ensure proper administration?
- A. Check the placement of the tube by auscultation.
- B. Flush the tube with 30 ml of water before and after medication administration.
- C. Administer the medication with food to prevent nausea.
- D. Dilute the medication with normal saline before administration.
Correct answer: B
Rationale: To ensure proper administration through a nasogastric tube, the LPN/LVN should flush the tube with 30 ml of water before and after medication administration. This action helps ensure the tube is patent, prevents clogging, and helps deliver the medication effectively. Checking the placement of the tube by auscultation (Choice A) is essential but does not directly relate to ensuring proper administration. Administering the medication with food (Choice C) may not always be appropriate for all medications and may not necessarily prevent nausea. Diluting the medication with normal saline (Choice D) is not a standard practice for all medications administered via an NG tube and may alter the medication's effectiveness.
2. What advice should the client be given if they are feeling dizzy upon standing after taking a diuretic for hypertension?
- A. Avoid standing up too quickly.
- B. Increase fluid intake to stay hydrated.
- C. Eat more salt to help retain fluids.
- D. Wear compression stockings during the day.
Correct answer: A
Rationale: The correct advice for a client feeling dizzy upon standing after taking a diuretic for hypertension is to avoid standing up too quickly. Diuretics can lead to orthostatic hypotension, causing dizziness upon sudden position changes. Increasing fluid intake can exacerbate the issue by further lowering blood pressure. Eating more salt might counteract the diuretic's effects but is not the primary intervention for orthostatic hypotension. Compression stockings are more relevant for venous insufficiency than for orthostatic hypotension.
3. Which serum blood finding in diabetic ketoacidosis alerts the nurse that immediate action is required?
- A. pH below 7.3
- B. Potassium of 5.0
- C. HCT of 60
- D. PaO2 of 79%
Correct answer: C
Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.
4. A client with type 1 diabetes mellitus is resistant to learning self-injection of insulin. Which of the following statements should the nurse make?
- A. Ask, 'Tell me what I can do to help you overcome your fear of giving yourself injections.'
- B. Instruct, 'You need to learn how to give yourself insulin injections immediately.'
- C. State, 'Insulin injections are important for managing your diabetes, so you must learn them.'
- D. Mention, 'Many people with diabetes manage well with insulin injections.'
Correct answer: A
Rationale: The correct answer is A. Asking the client what can be done to help overcome the fear of self-injections demonstrates empathy, understanding, and a willingness to support the client in addressing their barriers. This approach facilitates open communication, acknowledges the client's feelings, and involves them in the decision-making process. Choices B and C are authoritarian and may increase resistance in the client by being directive and not considering the client's perspective. Choice D, while positive, does not directly address the client's fear and resistance to self-injections, missing the opportunity to explore the underlying issues.
5. The pediatric clinic nurse examines a toddler with a tentative diagnosis of neuroblastoma. Findings observed by the nurse that are associated with this problem include which of these?
- A. Lymphedema and nerve palsy
- B. Hearing loss and ataxia
- C. Headaches and vomiting
- D. Abdominal mass and weakness
Correct answer: D
Rationale: The correct answer is D: Abdominal mass and weakness. In neuroblastoma, the most common presenting signs are related to the mass effect of the tumor, leading to an abdominal mass and symptoms of weakness. Lymphedema and nerve palsy (Choice A) are not typically associated with neuroblastoma. Hearing loss and ataxia (Choice B) are more indicative of other conditions like neurofibromatosis or brain tumors. Headaches and vomiting (Choice C) are more commonly seen in conditions such as brain tumors or increased intracranial pressure, but they are not specific to neuroblastoma.
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