HESI LPN
HESI Practice Test for Fundamentals
1. The nurse is assessing a 17-year-old female client with bulimia. Which of the following laboratory reports would the nurse anticipate?
- A. Increased serum glucose
- B. Decreased albumin
- C. Decreased potassium
- D. Increased sodium retention
Correct answer: C
Rationale: The correct answer is C, 'Decreased potassium.' Clients with bulimia often have decreased potassium levels due to frequent vomiting, which causes a loss of this essential electrolyte. This loss can lead to various complications such as cardiac arrhythmias. Option A, 'Increased serum glucose,' is not typically associated with bulimia. Option B, 'Decreased albumin,' is more related to malnutrition or liver disease rather than bulimia. Option D, 'Increased sodium retention,' is not a common finding in clients with bulimia; instead, they may experience electrolyte imbalances like hyponatremia due to purging behaviors.
2. To ensure the safety of a client receiving a continuous intravenous normal saline infusion, how often should the LPN change the administration set?
- A. Every 4 to 8 hours
- B. Every 12 to 24 hours
- C. Every 24 to 48 hours
- D. Every 72 to 96 hours
Correct answer: D
Rationale: The correct answer is to change the administration set every 72 to 96 hours. This practice helps reduce the risk of infection by preventing the build-up of bacteria in the tubing. Changing the set too frequently (choices A, B, and C) may increase the chances of contamination and infection without providing additional benefits. Therefore, the LPN should follow the guideline of changing the administration set every 72 to 96 hours to maintain the client's safety during the continuous intravenous normal saline infusion.
3. A nurse on a medical-surgical unit is admitting a client. Which of the following information should the nurse document in the client’s record first?
- A. Assessment
- B. History of present illness
- C. Plan of care
- D. Admission date and time
Correct answer: D
Rationale: When admitting a client to a medical-surgical unit, documenting the admission date and time is crucial as it establishes the timeline for the client's care. This information ensures accurate tracking of interventions and facilitates communication among the healthcare team. While assessment, history of present illness, and plan of care are important components of the admission process, documenting the admission date and time takes priority to establish a baseline for care delivery. Without the admission date and time, the continuity of care and coordination among healthcare providers may be compromised.
4. A charge nurse is talking with a newly licensed nurse and is reviewing nursing interventions that do not require a provider’s prescription. Which of the following interventions should the charge nurse include?
- A. Writing a prescription for morphine sulfate as needed for pain
- B. Inserting a nasogastric (NG) tube to relieve gastric distention
- C. Showing a client how to use progressive muscle relaxation
- D. Performing a daily bath after the evening meal
Correct answer: C
Rationale: The correct answer is C. Showing a client how to use progressive muscle relaxation is an intervention that does not require a provider's prescription. This falls within the nurse's scope of practice and can be implemented to promote relaxation and reduce stress for the client. Choices A and B involve tasks that require a provider's prescription and specialized training. Writing a prescription for morphine sulfate and inserting an NG tube should only be done by authorized healthcare providers. Choice D, performing a daily bath, while within the nurse's scope, does not specifically address interventions that do not require a provider's prescription.
5. The healthcare professional prepares a 1,000 ml IV of 5% dextrose and water to be infused over 8 hours. The infusion set delivers 10 drops per milliliter. The healthcare professional should regulate the IV to administer approximately how many drops per minute?
- A. 80
- B. 8
- C. 21
- D. 25
Correct answer: C
Rationale: To calculate the drops per minute for the IV infusion, first determine the total drops to be infused over 8 hours. 1,000 ml to be infused over 8 hours means 125 ml per hour (1000 ml / 8 hours = 125 ml/hr). Since the infusion set delivers 10 drops per ml, 125 ml/hr x 10 drops/ml = 1250 drops/hr. To find drops per minute, divide the drops per hour by 60 (minutes in an hour): 1250 drops/hr / 60 minutes = 20.83 drops/minute, which rounds up to 21 drops per minute (Option C). This rate ensures the correct infusion rate over 8 hours. Choices A, B, and D are incorrect calculations and do not provide the appropriate infusion rate needed to administer the IV over the specified time period.
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