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 parent is reviewing safety measures for an 8-month-old infant with a nurse. Which of the following statements by the parent indicates an understanding of safety for the infant?
- A. “My baby loved to play with the crib gym, but I took it out of the crib.”
- B. “I just bought a firm mattress so my baby will sleep better.”
- C. “My baby really likes sleeping on the fluffy pillow we just got.”
- D. “I put the baby’s car seat on the table after I put him in it.”
Correct answer: A
Rationale: Choice A is correct because removing the crib gym prevents potential safety hazards such as choking or entrapment. Choices B, C, and D are incorrect as they pose risks to the infant's safety. A firm mattress is recommended for infants to reduce the risk of suffocation. Soft mattresses and fluffy pillows increase the risk of suffocation and Sudden Infant Death Syndrome (SIDS). Placing the baby's car seat on a table can lead to falls or other accidents.
3. When entering the room of an adult male, the nurse finds that the client is very anxious. Before providing care, what action should the nurse take?
- A. Divert the client’s attention
- B. Call for additional help from staff
- C. Document the planned action
- D. Re-assess the client's situation
Correct answer: D
Rationale: Re-assessing the client's situation before providing care is the most appropriate action in this scenario. By re-evaluating the client, the nurse can better understand the cause of the anxiety and tailor the care accordingly. Diverting the client's attention (Choice A) may not address the underlying issue causing anxiety. Calling for additional help (Choice B) is not the initial step required unless there is an urgent need. Documenting the planned action (Choice C) should come after reassessing the client to ensure accuracy and relevance.
4. A client who has just had a mastectomy has a closed wound suction device (hemovac) in place. Which nursing action will ensure proper operation of the device?
- A. Collapsing the device whenever it is 1/2 to 2/3 full of air.
- B. Emptying the device every 4 hours.
- C. Replacing the device every 24 hours.
- D. Keeping the device above the level of the surgical site.
Correct answer: A
Rationale: Collapsing the device when it is 1/2 to 2/3 full of air is the correct nursing action to ensure proper operation of a closed wound suction device (hemovac). This action maintains negative pressure, which is essential for proper suction and drainage of the wound. Emptying the device every 4 hours (Choice B) is not necessary as the focus should be on collapsing it appropriately. Replacing the device every 24 hours (Choice C) is not a standard practice unless indicated by the healthcare provider. Keeping the device above the level of the surgical site (Choice D) is not necessary for the device's proper operation; collapsing it to maintain negative pressure is the key action.
5. 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.
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