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. While caring for an older adult client who is violent and attempting to disconnect her IV lines, the provider prescribes soft wrist restraints. Which of the following actions should the nurse take while the client is in restraints?
- A. Remove the restraints one at a time
- B. Secure the restraints tightly to prevent movement
- C. Check the restraints every hour
- D. Use leather restraints for additional security
Correct answer: A
Rationale: Removing restraints one at a time is the correct action to take when caring for a client in soft wrist restraints. This approach ensures safety and comfort while still maintaining the necessary restrictions. Choice B is incorrect as securing the restraints tightly can lead to circulatory issues and discomfort. Choice C of checking the restraints every hour is a reasonable action, but it is not the priority when compared to the correct choice of removing the restraints one at a time. Choice D of using leather restraints for additional security is unnecessary and may be more restrictive and uncomfortable for the client.
3. The client is being instructed on how to collect a clean catch urine specimen. Which sequence is appropriate for teaching?
- A. Void a little, clean the meatus, then collect specimen
- B. Clean the meatus, begin voiding, then catch urine stream
- C. Clean the meatus, then urinate into container
- D. Void continuously and catch some of the urine
Correct answer: B
Rationale: The correct sequence for obtaining a clean catch urine specimen involves first cleaning the meatus to prevent contamination, then initiating voiding to catch the midstream urine. This method ensures that the sample is as uncontaminated as possible, making choice B the correct sequence. Option A is incorrect as cleaning the meatus should be done before voiding. Option C is incorrect as it does not involve catching a midstream urine sample. Option D is incorrect as it suggests catching urine throughout the entire voiding process, which may lead to contamination.
4. A client has been coughing for 3 weeks and is beginning to cough up blood. The client has manifestations of which of the following conditions?
- A. Allergic reaction
- B. Ringworm
- C. Systemic lupus erythematosus
- D. Tuberculosis
Correct answer: D
Rationale: The correct answer is D: Tuberculosis. Coughing up blood (hemoptysis) is a key symptom of tuberculosis. Tuberculosis is a respiratory infection caused by the bacterium Mycobacterium tuberculosis. The other options are incorrect because an allergic reaction typically involves symptoms like itching, hives, or swelling, not coughing up blood. Ringworm is a fungal skin infection characterized by a red, circular rash, and systemic lupus erythematosus is an autoimmune disease that primarily affects joints and skin without causing hemoptysis.
5. A charge nurse is observing a newly licensed nurse prepare a sterile field. Which of the following actions should the charge nurse identify as contaminating the sterile field?
- A. The nurse opens the sterile field on a wet surface.
- B. The nurse turns away from the sterile field.
- C. The nurse uses a non-sterile glove to touch the sterile field.
- D. The nurse touches the edge of the sterile drape with her hand.
Correct answer: A
Rationale: The correct answer is A. Opening the sterile field on a wet surface contaminates it, rendering it unsafe for use. Moisture can carry microorganisms that can compromise the sterility of the field. Choice B is incorrect because turning away from the sterile field alone does not necessarily contaminate it unless the nurse touches non-sterile items. Choice C is incorrect because using a non-sterile glove to touch the sterile field directly introduces contaminants. Choice D is incorrect as touching the edge of the sterile drape with a hand may not necessarily contaminate the entire field, unlike opening it on a wet surface.
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