HESI LPN
Practice HESI Fundamentals Exam
1. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
2. During an admission history, a client tells a nurse that she is under a lot of stress. Which of the following physiological responses should the nurse expect to increase as a result of stress?
- A. Blood glucose - a common stress response.
- B. Intestinal peristalsis - should decrease due to stress.
- C. Peripheral blood vessels diameter - can vary in response to stress.
- D. Urine output - may vary but not a typical stress response.
Correct answer: A
Rationale: The correct answer is A. Stress typically increases blood glucose levels due to the release of stress hormones like cortisol and adrenaline. Elevated blood glucose helps provide energy for the body to cope with the stressful situation. Choice B is incorrect because intestinal peristalsis, the movement of the intestines, is more likely to decrease under stress due to the 'fight or flight' response. Choice C is incorrect as peripheral blood vessels' diameter may vary in response to stress, with both constriction and dilation possible. Choice D is incorrect as urine output may increase or decrease depending on individual differences and the specific stress response, but it is not a typical or direct physiological response to stress.
3. When parents call the emergency room to report that a toddler has swallowed drain cleaner, the nurse instructs them to call for emergency transport to the hospital. While waiting for an ambulance, what substance should the nurse suggest the parents give the child sips of?
- A. Tea
- B. Water
- C. Milk
- D. Soda
Correct answer: B
Rationale: The correct answer is B: Water. Giving sips of water can help dilute the drain cleaner while waiting for emergency transport, which may help reduce the potential harm caused by the ingestion. Choices A, C, and D are incorrect because tea, milk, and soda can interact with the chemicals in the drain cleaner or increase the risk of vomiting, which is not recommended in this situation.
4. The nurse admits a 7 year-old to the emergency room after a leg injury. The x-rays show a femur fracture near the epiphysis. The parents ask what will be the outcome of this injury. The appropriate response by the nurse should be which of these statements?
- A. The injury is expected to heal quickly because of thin periosteum.
- B. In some instances the result is a retarded bone growth.
- C. Bone growth is stimulated in the affected leg.
- D. This type of injury shows more rapid union than that of younger children.
Correct answer: B
Rationale: A fracture near the epiphysis can result in retarded bone growth, so this should be communicated to the parents.
5. 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.
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