HESI LPN
Adult Health Exam 1
1. A client has a prescription for a Transcutaneous Electrical Nerve Stimulator (TENS) unit for pain management during the postoperative period following a Lumbar Laminectomy. What information should the nurse reinforce about the action of this adjuvant pain modality?
- A. Mild electrical stimulus on the skin surface closes the gates of nerve conduction for severe pain
- B. Pain perception in the cerebral cortex is dulled by the unit's discharge of an electrical stimulus
- C. An infusion of medication in the spinal canal will block pain perception
- D. The discharge of electricity will distract the client's focus on the pain
Correct answer: A
Rationale: The correct answer is A. TENS units work by delivering small electrical impulses through the skin. These impulses are thought to close the 'gates of nerve conduction,' which can help in managing severe pain. Choice B is incorrect because the dulled pain perception does not occur in the cerebral cortex by the TENS unit. Choice C is incorrect as it describes a different method of pain management involving medication in the spinal canal. Choice D is incorrect because TENS does not work by distracting the client's focus on pain, but rather by altering pain perception through electrical impulses.
2. A 9-year-old is receiving vancomycin 400 mg IV every 6 hours for a methicillin-resistant (Beta-lactam-resistant) Staphylococci aureus (MRSA) infection. The medication is diluted in a 100 mL bag of saline with instructions to infuse over one and a half hours. How many mL/hour should the nurse program the infusion pump?
- A. 50
- B. 67
- C. 57
- D. 70
Correct answer: B
Rationale: To calculate the infusion rate for vancomycin, you need to divide the total volume by the total time of infusion. In this case, the total volume is 100 mL, and the total time is 1.5 hours. Therefore, 100 mL รท 1.5 hours = 67 mL/hour. This means the nurse should program the infusion pump to deliver vancomycin at a rate of 67 mL/hour. Choice A (50) is incorrect as it does not reflect the correct calculation. Choice C (57) is incorrect as it is not the accurate calculation based on the provided information. Choice D (70) is incorrect as it does not correspond to the correct infusion rate calculation.
3. A client with type 1 diabetes is experiencing symptoms of hypoglycemia. What is the nurse's priority intervention?
- A. Administer glucagon intramuscularly
- B. Provide a complex carbohydrate snack
- C. Administer 50% dextrose intravenously
- D. Give 15 grams of a fast-acting carbohydrate
Correct answer: D
Rationale: The priority intervention for a client with type 1 diabetes experiencing symptoms of hypoglycemia is to give 15 grams of a fast-acting carbohydrate. In a hypoglycemic state, the priority is to quickly raise the blood glucose level. Administering glucagon intramuscularly (Choice A) is reserved for severe hypoglycemia when the client is unable to take oral carbohydrates. Providing a complex carbohydrate snack (Choice B) is beneficial after the initial treatment of hypoglycemia to prevent recurrence. Administering 50% dextrose intravenously (Choice C) is a more invasive intervention typically done in a hospital setting for severe cases.
4. A client is admitted to the hospital with a diagnosis of Pneumonia. Which intervention should the nurse implement to prevent complications associated with Pneumonia?
- A. Encourage mobilization and ambulation
- B. Encourage energy conservation with complete bed rest
- C. Provide humidified oxygen via nasal cannula
- D. Restrict oral (PO) and intravenous fluids
Correct answer: A
Rationale: The correct intervention to prevent complications associated with pneumonia is to encourage mobilization and ambulation. These activities help prevent complications such as atelectasis by promoting lung expansion. Encouraging energy conservation with complete bed rest (Choice B) is not ideal as it can lead to complications like muscle weakness and decreased lung expansion. Providing humidified oxygen via nasal cannula (Choice C) is important in pneumonia treatment but does not directly prevent complications associated with pneumonia itself. Restricting oral (PO) and intravenous fluids (Choice D) is not recommended as adequate hydration is crucial for pneumonia patients to maintain respiratory function and overall health.
5. The nurse is teaching a client about the administration of a subcutaneous injection. Which site is most appropriate for this type of injection?
- A. Deltoid muscle
- B. Dorsogluteal muscle
- C. Ventrogluteal muscle
- D. Abdomen
Correct answer: D
Rationale: The abdomen is a common site for subcutaneous injections due to its accessibility and ample subcutaneous tissue. Subcutaneous injections are typically given in areas with a layer of fat between the skin and muscle, such as the abdomen, to allow for slow and consistent absorption of the medication. The deltoid muscle is more appropriate for intramuscular injections, not subcutaneous. The dorsogluteal muscle and ventrogluteal muscle are also more suited for intramuscular injections, not subcutaneous.
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