HESI LPN
HESI Fundamental Practice Exam
1. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the LPN/LVN set the client's intravenous infusion pump?
- A. 13 ml/hour
- B. 63 ml/hour
- C. 80 ml/hour
- D. 125 ml/hour
Correct answer: B
Rationale: To calculate the correct rate of infusion, divide the total volume by the total time: 250 ml / 4 hours = 62.5 ml/hour, which is rounded up to 63 ml/hour. This rate ensures the proper administration of the KCl over the 4-hour period. Choice A (13 ml/hour) is incorrect as it does not match the calculated rate. Choices C (80 ml/hour) and D (125 ml/hour) are also incorrect as they do not correspond to the calculated rate needed for the specified time frame.
2. A healthcare professional uses a head-to-toe approach to conduct a physical assessment of a client who will undergo surgery the following week. Which of the following critical thinking did the healthcare professional demonstrate?
- A. Confidence
- B. Perseverance
- C. Integrity
- D. Discipline
Correct answer: D
Rationale: The correct answer is 'Discipline.' In this scenario, discipline is exemplified by following a structured and comprehensive assessment process, as seen in the head-to-toe approach. Confidence (choice A) relates to self-assurance and belief in one's abilities, which is not the primary critical thinking demonstrated in this situation. Perseverance (choice B) is the persistence in achieving goals despite challenges, not directly related to the systematic assessment process. Integrity (choice C) pertains to honesty and ethical behavior, which are important traits but not the critical thinking skill exemplified by the structured assessment process shown in the head-to-toe approach.
3. A healthcare professional reviewing a client’s health record notes a new prescription for lisinopril 10 mg PO once daily. The healthcare professional should identify this as which of the following types of prescription?
- A. Single
- B. Stat
- C. Routine
- D. Now
Correct answer: C
Rationale: A prescription for once-daily medication is considered routine as it is meant for regular, daily administration to maintain therapeutic levels in the body. Single prescriptions are for one-time use only. Stat prescriptions are for immediate administration in urgent situations, while now prescriptions are also for immediate use but may have varying levels of urgency depending on the patient's condition. In this case, since the prescription is for once daily use, it falls under the category of routine prescription.
4. A healthcare professional is preparing to administer metoprolol 200 mg PO daily. The medication available is metoprolol 100 mg/tablet. How many tablets should the healthcare professional administer? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 1 tablet
- B. 2 tablets
- C. 0.5 tablet
- D. 4 tablets
Correct answer: B
Rationale: To administer 200 mg of metoprolol using 100 mg tablets, the healthcare professional should give 2 tablets. Each tablet contains 100 mg of metoprolol, so 2 tablets will provide the required 200 mg dose. Choice A is incorrect because 1 tablet would only provide 100 mg, which is insufficient. Choice C is incorrect as fractions of tablets are usually not used in practice to ensure accurate dosing. Choice D is incorrect as it would result in an overdose, providing 400 mg instead of the prescribed 200 mg.
5. A client in the emergency department is being cared for by a nurse and has abdominal trauma. Which of the following assessment findings should the nurse identify as an indication of hypovolemic shock?
- A. Tachycardia
- B. Elevated blood pressure
- C. Warm, dry skin
- D. Decreased respiratory rate
Correct answer: A
Rationale: Tachycardia is a hallmark sign of hypovolemic shock. When a client experiences significant blood loss, the body compensates by increasing the heart rate to maintain adequate perfusion to vital organs. Elevated blood pressure is not typically seen in hypovolemic shock; instead, hypotension is a more common finding. Warm, dry skin is characteristic of neurogenic shock, not hypovolemic shock. Decreased respiratory rate is not a typical manifestation of hypovolemic shock, as the body usually tries to increase respiratory effort to improve oxygenation in response to hypovolemia.
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