HESI LPN
Medical Surgical HESI
1. The nurse instructs the mother of a child with a ventricular septal defect that she can expect the child to become cyanotic when the child does what?
- A. Experiences an elevation in temperature.
- B. Sleeps on the left side.
- C. Cries vigorously.
- D. Eats.
Correct answer: C
Rationale: The correct answer is C: Cries vigorously. When the child cries vigorously, it increases the pressure in the right ventricle, allowing unoxygenated blood to enter the circulating volume, leading to cyanosis. This occurs due to the shunting of blood from the right side of the heart to the left side through the ventricular septal defect. Choices A, B, and D are incorrect because they do not directly impact the pressure in the right ventricle, which is crucial in causing cyanosis in this scenario.
2. The nurse is providing discharge teaching for a client with heart failure. Which instruction should be included to prevent fluid overload?
- A. Weigh yourself daily and report a gain of 2 pounds in 24 hours
- B. Increase fluid intake to stay hydrated
- C. Consume a high-sodium diet to retain fluids
- D. Engage in vigorous exercise daily
Correct answer: A
Rationale: The correct answer is A: 'Weigh yourself daily and report a gain of 2 pounds in 24 hours.' Daily weight monitoring is crucial for detecting fluid retention early in clients with heart failure. Reporting a gain of 2 pounds in 24 hours can indicate fluid overload, prompting timely intervention. Choice B is incorrect because increasing fluid intake can exacerbate fluid overload in clients with heart failure. Choice C is incorrect as a high-sodium diet can worsen fluid retention. Choice D is incorrect as vigorous exercise can strain the heart and worsen heart failure symptoms.
3. The nurse is completing the preoperative assessment of a client who is scheduled for a laparoscopic cholecystectomy under general anesthesia. Which finding warrants notification of the HCP prior to proceeding with the scheduled procedure?
- A. Light yellow coloring of the client's skin and eyes.
- B. The client's blood pressure reading of 184/88 mm Hg.
- C. The client vomits 20 ml of clear yellowish fluid.
- D. The IV insertion site is red, swollen, and leaking IV fluid.
Correct answer: B
Rationale: The correct answer is B. A blood pressure reading of 184/88 mm Hg indicates hypertension, which can increase the risks associated with surgery. The healthcare provider should be notified to manage the blood pressure before proceeding with the scheduled procedure. Choices A, C, and D are incorrect: A, light yellow coloring of the client's skin and eyes may indicate jaundice, but it is not an immediate concern for the scheduled procedure; C, vomiting clear yellowish fluid may suggest bile reflux, but it does not pose an immediate risk to the procedure; D, red, swollen, and leaking IV insertion site indicates a local complication that requires intervention but does not have a direct impact on proceeding with the scheduled surgery.
4. Methotrexate is prescribed for a client with rheumatoid arthritis (RA) who is also taking aspirin. What is the best explanation for the nurse to provide as to why a second medication has been added?
- A. Methotrexate slows the disease progression while aspirin controls the symptoms.
- B. Methotrexate helps to reduce the side effects of aspirin.
- C. Methotrexate has fewer harmful side effects than aspirin.
- D. Methotrexate enhances the effect of aspirin.
Correct answer: A
Rationale: The correct answer is A. Methotrexate is a disease-modifying antirheumatic drug (DMARD) that slows the progression of rheumatoid arthritis (RA), while aspirin helps control symptoms such as pain and inflammation. Therefore, the combination of methotrexate and aspirin is beneficial in managing RA by addressing both disease progression and symptom control. Choices B, C, and D are incorrect because methotrexate is not added to reduce the side effects of aspirin, has different side effects compared to aspirin, and does not enhance the effect of aspirin.
5. How are type IV hypersensitivity reactions different from all other types (I, II, or III) of hypersensitivity reactions?
- A. They involve antigen-antibody complexes.
- B. They are mediated by T cells and do not involve antibodies.
- C. They result in immediate allergic reactions.
- D. They are the least severe form of hypersensitivity.
Correct answer: B
Rationale: Type IV hypersensitivity reactions are mediated by T cells and cytokine release, leading to delayed reactions, unlike types I, II, and III, which involve antibodies. Choice A is incorrect because type IV reactions do not involve antigen-antibody complexes. Choice C is incorrect as type IV reactions do not result in immediate allergic reactions. Choice D is incorrect as type IV reactions are not the least severe form of hypersensitivity; in fact, they are known to cause significant tissue damage and inflammation.
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