HESI LPN
HESI Fundamentals Study Guide
1. A healthcare professional is preparing to inject heparin subcutaneously for a client who is postoperative. Which of the following actions should the healthcare professional take?
- A. Use a 25-gauge needle.
- B. Select a site on the client’s abdomen.
- C. Use the Z-track technique to displace the skin on the injection site.
- D. Observe for bleb formation to confirm proper placement.
Correct answer: B
Rationale: For subcutaneous injections like heparin, a 25-27 gauge needle is recommended, making choice A incorrect. The abdomen is a commonly used site for heparin injection due to its consistent absorption and convenience, making choice B the correct answer. The Z-track technique is not necessary for subcutaneous injections, making choice C unnecessary. Observing for bleb formation is not a standard practice for confirming proper placement of subcutaneous heparin, making choice D incorrect. Therefore, the correct action is to select a site on the client's abdomen for the injection.
2. A healthcare professional is preparing to administer dextrose 5% in water (D5W) 1,000-mL IV to infuse over 10 hr. How many mL/hr should the IV infusion pump be set to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 100 mL/hr
- B. 150 mL/hr
- C. 75 mL/hr
- D. 50 mL/hr
Correct answer: A
Rationale: To infuse 1,000 mL over 10 hr, the IV pump should be set to deliver 100 mL/hr. This calculation is derived by dividing the total volume (1,000 mL) by the total time in hours (10 hr), resulting in the infusion rate of 100 mL/hr. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation for this scenario.
3. While interviewing a client, the nurse records the assessment in the electronic health record. Which statement is most accurate regarding electronic documentation during an interview?
- A. The client's comfort level is increased when the nurse maintains eye contact while typing notes into the record
- B. The interview process is hindered by electronic documentation and may disrupt the flow of conversation
- C. The nurse has limited ability to observe nonverbal communication while entering the assessment electronically
- D. Completing the electronic record during an interview is optional and not a legal obligation of the examining nurse
Correct answer: C
Rationale: The most accurate statement is that the nurse has a limited ability to observe nonverbal communication while entering the assessment electronically. This is because the nurse's focus is on typing or inputting data, which may lead to missing important nonverbal cues from the client. Choices A and B are incorrect as they do not address the limitation of observing nonverbal cues. Choice A is incorrect because breaking eye contact to type notes may hinder the client's comfort level. Choice B is incorrect because it states that electronic documentation enhances the interview process, which may not always be the case. Choice D is incorrect as completing the electronic record during an interview is typically a standard practice but not a legal obligation.
4. When planning home care for a 72-year-old client with osteomyelitis requiring a 6-week course of intravenous antibiotics, what is the most important action by the nurse?
- A. Investigating the client's insurance coverage for home IV antibiotic therapy
- B. Determining if there are adequate hand washing facilities in the home
- C. Assessing the client's ability to participate in self-care and/or the reliability of a caregiver
- D. Selecting the appropriate venous access device
Correct answer: C
Rationale: Assessing the client's ability to participate in self-care or evaluating the reliability of a caregiver is crucial in ensuring adherence to the treatment plan. This action helps determine if the client can manage the intravenous antibiotics at home independently or if assistance is needed. Investigating insurance coverage, ensuring hand washing facilities, and selecting the venous access device are important aspects of care but assessing the client's ability for self-care and caregiver reliability takes precedence to promote treatment success and safety.
5. A client has a sodium level of 125. What findings should the nurse expect?
- A. Abdominal cramping
- B. Elevated blood pressure
- C. Decreased heart rate
- D. Increased thirst
Correct answer: A
Rationale: Low sodium levels (hyponatremia) often present with various symptoms, including abdominal cramping. Abdominal cramping is a common manifestation of hyponatremia due to the altered electrolyte balance. Option B ('Elevated blood pressure') is incorrect because low sodium levels typically lead to decreased blood pressure, not elevated. Option C ('Decreased heart rate') is incorrect as low sodium levels are more likely to cause an irregular heart rate rather than a decreased heart rate. Option D ('Increased thirst') is incorrect because excessive thirst is more commonly associated with high sodium levels (hypernatremia) rather than low sodium levels.
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