HESI LPN
HESI Fundamentals Exam
1. A client is receiving 0.9% sodium chloride IV at 125 mL/hr. The nurse notes that the client has received only 80 mL over the last 2 hr. Which of the following actions should the nurse take first?
- A. Reposition the client
- B. Document the client's IV intake in the medical record
- C. Request a new IV fluid prescription
- D. Check the IV tubing for obstruction
Correct answer: D
Rationale: The correct answer is to check the IV tubing for obstruction. The first step in the nursing process is assessment. By checking the IV tubing for obstruction, the nurse can assess and potentially correct any issues affecting the flow rate. This action may help to ensure that the prescribed infusion rate is maintained. Repositioning the client is not the priority at this stage as the issue seems related to the IV tubing. Documenting the intake or requesting a new prescription are not immediate actions needed to address the current situation with the IV fluid flow.
2. When caring for a client receiving warfarin sodium (Coumadin), which lab test would the nurse monitor to determine therapeutic response to the drug?
- A. Bleeding time
- B. Coagulation time
- C. Prothrombin time
- D. Partial thromboplastin time
Correct answer: C
Rationale: The correct answer is C: Prothrombin time (PT). Prothrombin time is monitored to assess the therapeutic response to warfarin therapy. Warfarin works by inhibiting vitamin K-dependent clotting factors, which prolongs the PT. Monitoring PT helps determine if the client's blood is clotting within the desired therapeutic range. Choices A, B, and D are incorrect because bleeding time, coagulation time, and partial thromboplastin time are not specifically used to monitor the therapeutic response to warfarin. Bleeding time assesses platelet function, coagulation time is a general term and not a specific test, and partial thromboplastin time is more relevant in monitoring heparin therapy, not warfarin.
3. A healthcare professional is caring for a group of clients. Which of the following measures should the professional take to prevent the spread of infection?
- A. Place a client with TB in a room with negative pressure airflow
- B. Use a disposable gown for contact precautions
- C. Place a client with MRSA in a private room
- D. Use a mask for clients with influenza
Correct answer: A
Rationale: Tuberculosis is an airborne infection, and placing a client with TB in a room with negative pressure airflow helps prevent the spread of the infection by containing the pathogens. This measure is crucial as it prevents the dissemination of TB droplet nuclei to other areas. Choice B, using a disposable gown for contact precautions, is important for preventing the transmission of infections spread by direct or indirect contact. Choice C, placing a client with MRSA in a private room, is essential to prevent the spread of MRSA through contact with others. Choice D, using a mask for clients with influenza, helps prevent the spread of influenza through respiratory droplets. However, negative pressure airflow is specifically required for airborne infections like TB, making it the most appropriate choice in this scenario.
4. During preoperative teaching, a client in a surgeon’s office expresses intent to prepare advance directives before surgery. Which statement by the client indicates understanding of advance directives?
- A. “I’d prefer my brother to make decisions, but I understand it must be my wife.”
- B. “I understand the surgery won’t proceed unless I fill out these forms.”
- C. “I plan to specify my wish to avoid being kept on a breathing machine.”
- D. “I will have my primary doctor review my plan before submitting it at the hospital.”
Correct answer: C
Rationale: The correct answer is C. This statement reflects the client's understanding of advance directives, as it indicates a specific preference regarding life-sustaining treatment. Advance directives enable individuals to outline their healthcare preferences, including decisions about treatments they wish to receive or avoid. Choice A mentions family members but doesn't address specific healthcare wishes; choice B focuses on the surgery rather than personal directives; choice D discusses doctor approval but lacks details about the directive itself.
5. A healthcare provider is preparing to insert an IV catheter into a client's arm before starting IV fluid therapy. Which of the following interventions should the provider implement to prevent infection?
- A. Thread the IV catheter so that the hub rests at the insertion site
- B. Shave excess hair from around the insertion site
- C. Cleanse the site with hydrogen peroxide before IV catheter insertion
- D. Palpate the site carefully just before inserting the IV catheter
Correct answer: A
Rationale: Inserting the IV catheter so that the hub rests at the insertion site reduces the risk of contamination along the length of the catheter. This technique helps prevent introducing microbes into the bloodstream during the catheter insertion process. Shaving excess hair is unnecessary and can increase the risk of skin irritation and infection. Cleansing the site with hydrogen peroxide is outdated as it can cause tissue damage and delay wound healing. Palpating the site just before insertion can introduce bacteria from the skin surface into the insertion site, increasing the risk of infection.
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