HESI LPN
HESI Fundamental Practice Exam
1. A healthcare professional is preparing to insert an IV catheter into a client’s arm prior to initiating IV fluid therapy. Which of the following interventions should the healthcare professional implement to prevent infection?
- A. Thread the catheter up to the hub
- B. Use a sterile technique throughout the procedure
- C. Clean the insertion site with alcohol only
- D. Use gloves but not a mask during the procedure
Correct answer: B
Rationale: Using a sterile technique throughout the procedure is essential to prevent infection when inserting an IV catheter. This includes maintaining aseptic conditions, using sterile equipment, and following proper hand hygiene practices. Choice A is incorrect because threading the catheter up to the hub does not specifically address infection prevention. Choice C is incorrect as cleaning the insertion site with alcohol only may not provide adequate disinfection, as it is essential to use an antiseptic solution to reduce microbial load. Choice D is incorrect as wearing gloves alone is not sufficient protection against infection; a mask should also be worn to prevent the spread of microorganisms through respiratory secretions.
2. What finding signifies that children have attained the stage of concrete operations according to Piaget?
- A. Demonstrates exploration of the environment through sight and movement
- B. Thinks in mental images or word pictures
- C. Makes the moral judgment that 'stealing is wrong'
- D. Reasons that homework is time-consuming yet necessary
Correct answer: C
Rationale: The correct answer is C, 'Makes the moral judgment that 'stealing is wrong''. This finding signifies the attainment of the concrete operational stage according to Piaget. At this stage, children begin to understand rules and logic, including moral judgments. Choice A is incorrect because it does not specifically relate to concrete operational thinking. Choice B is incorrect as it refers more to the preoperational stage where children engage in symbolic thought. Choice D is also incorrect as it involves practical reasoning, which is not directly related to the concrete operational stage according to Piaget.
3. A client scheduled for a hysterectomy has not yet signed the operative consent form. When the nurse approaches the client and asks that she review and sign the form, the client says she no longer wants to have the surgery. At this time, which action should the nurse take?
- A. Ask the client why she has changed her mind
- B. Proceed with the surgery
- C. Notify the surgeon immediately
- D. Document the client’s decision
Correct answer: A
Rationale: The correct action for the nurse to take in this situation is to ask the client why she has changed her mind. By understanding the client's reasons for refusal, the nurse can address any concerns, provide further information, and ensure that the client's decision is respected. Proceeding with the surgery without clarifying the client's decision or notifying the surgeon immediately would not be appropriate. Documenting the client's decision is important, but it should be done after understanding the rationale behind the decision.
4. The nurse is caring for a 17-month-old child with acetaminophen poisoning. Which laboratory reports should the nurse review first?
- A. Prothrombin time (PT) and partial thromboplastin time (PTT)
- B. Red blood cell and white blood cell counts
- C. Blood urea nitrogen and creatinine levels
- D. Liver enzymes (AST and ALT)
Correct answer: D
Rationale: In acetaminophen poisoning, liver damage is a significant concern due to the drug's metabolism in the liver. Monitoring liver enzymes such as AST and ALT is crucial as they indicate liver function and damage. Prothrombin time (PT) and partial thromboplastin time (PTT) (Choice A) are coagulation studies and are not the priority in acetaminophen poisoning. Red blood cell and white blood cell counts (Choice B) are not directly related to acetaminophen poisoning. Blood urea nitrogen and creatinine levels (Choice C) assess kidney function, but liver enzymes are more specific for evaluating liver damage in acetaminophen poisoning.
5. What is the most important action for the LPN/LVN to take to prevent infection in a client with an indwelling urinary catheter?
- A. Ensure the catheter tubing is free of kinks.
- B. Change the catheter every 72 hours.
- C. Clean the perineal area with an antiseptic solution daily.
- D. Irrigate the catheter with normal saline every shift.
Correct answer: A
Rationale: The most crucial action to prevent infection in a client with an indwelling urinary catheter is to ensure the catheter tubing is free of kinks. This step helps prevent obstruction in the tubing, maintaining proper urine flow and reducing the risk of infection. Changing the catheter every 72 hours is not recommended unless clinically indicated, as routine changes can increase the risk of introducing pathogens. Cleaning the perineal area with an antiseptic solution is essential for general hygiene but does not directly prevent catheter-related infections. Irrigating the catheter with normal saline every shift is not a standard practice and can introduce microorganisms into the urinary tract, increasing the risk of infection.
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