HESI LPN
Practice HESI Fundamentals Exam
1. A client with chronic kidney disease is experiencing hyperkalemia. Which medication should the LPN/LVN anticipate being prescribed to lower the client's potassium level?
- A. Furosemide (Lasix)
- B. Sodium polystyrene sulfonate (Kayexalate)
- C. Calcium gluconate
- D. Albuterol (Proventil)
Correct answer: B
Rationale: The correct answer is B: Sodium polystyrene sulfonate (Kayexalate). Kayexalate is commonly used to lower potassium levels in clients with hyperkalemia by exchanging sodium ions for potassium ions in the large intestine, leading to the elimination of excess potassium from the body. Choice A, Furosemide (Lasix), is a loop diuretic that helps with fluid retention but does not directly lower potassium levels. Choice C, Calcium gluconate, is used to treat calcium deficiencies and does not impact potassium levels. Choice D, Albuterol (Proventil), is a bronchodilator used to treat respiratory conditions and does not affect potassium levels. Therefore, the LPN/LVN should anticipate the prescription of Kayexalate to address the client's hyperkalemia.
2. A 16-year-old enters the emergency department. The triage nurse identifies that this teenager is legally married and signs the consent form for treatment. What would be the appropriate action by the nurse?
- A. Ask the teenager to wait until a parent or legal guardian can be contacted
- B. Withhold treatment until telephone consent can be obtained from the partner
- C. Refer the teenager to a community pediatric hospital emergency department
- D. Proceed with the triage process in the same manner as any adult client
Correct answer: D
Rationale: The correct answer is to proceed with the triage process in the same manner as any adult client. In this scenario, since the teenager is legally married, they have the legal authority to consent to their own treatment. Choice A is incorrect because the teenager, being legally married, can provide their own consent. Choice B is incorrect as it unnecessarily delays treatment by waiting for telephone consent from the partner, which is not required in this case. Choice C is incorrect as the teenager can receive appropriate care in the current emergency department setting without the need for referral.
3. When is a depressed client at highest risk for attempting suicide?
- A. Immediately after admission, during one-to-one observation
- B. 7 to 14 days after initiation of antidepressant medication and psychotherapy
- C. Following an angry outburst with family
- D. When the client is removed from the security room
Correct answer: B
Rationale: Depressed clients are at the highest risk of attempting suicide 7 to 14 days after starting antidepressant medication and psychotherapy. During this time, they may start to regain energy but still feel hopeless, which can increase the risk of suicidal ideation and behavior. Choices A, C, and D are incorrect because immediate post-admission, after an angry outburst with family, or when removed from a security room are not specific periods known to be associated with the highest risk of suicide in depressed clients.
4. A client with a history of atrial fibrillation is receiving warfarin (Coumadin). Which laboratory value should the LPN/LVN monitor closely while the client is taking this medication?
- A. Blood glucose level
- B. Prothrombin time (PT) and INR
- C. Serum potassium level
- D. Serum creatinine level
Correct answer: B
Rationale: The LPN/LVN should closely monitor Prothrombin time (PT) and INR (Choice B) levels in a client receiving warfarin. These values are crucial to ensure the medication's effectiveness and prevent complications like bleeding. Monitoring blood glucose level (Choice A) is not directly relevant to warfarin therapy. While serum potassium level (Choice C) and serum creatinine level (Choice D) are important for other conditions or medications, they are not specifically required to be monitored when a client is on warfarin.
5. A healthcare professional is planning to obtain the vital signs of a 2-year-old child who is experiencing diarrhea and who might have a right ear infection. Which of the following routes should the healthcare professional use to obtain the temperature?
- A. Temporal
- B. Oral
- C. Rectal
- D. Axillary
Correct answer: C
Rationale: In a 2-year-old child with diarrhea and a possible ear infection, rectal temperature measurement is the most accurate reflection of core body temperature. This method provides the most reliable reading, especially in young children, as it closely reflects the core body temperature. Oral temperature may not be accurate due to the child's recent diarrhea, which can affect oral readings. Axillary temperature may not be as accurate as rectal temperature in this case. Temporal temperature measurement, although non-invasive, may not provide the most accurate core body temperature reading, especially in a child with a potential ear infection.
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