HESI LPN
HESI Fundamentals Study Guide
1. A client with a history of chronic renal failure is admitted with generalized edema. Which laboratory value should the LPN/LVN monitor to assess the client's fluid balance?
- A. Serum potassium
- B. Serum calcium
- C. Serum albumin
- D. Serum sodium
Correct answer: C
Rationale: The correct answer is C, Serum albumin. In clients with chronic renal failure and generalized edema, monitoring serum albumin levels is crucial as it is a key indicator of fluid balance. Low serum albumin levels can contribute to edema formation due to decreased oncotic pressure, indicating fluid imbalance. Serum potassium (Choice A) is more related to kidney function and electrolyte balance in renal failure patients. Serum calcium (Choice B) is important for bone health but is not directly related to fluid balance. Serum sodium (Choice D) is more indicative of hydration status and electrolyte balance but may not directly reflect fluid balance in the context of chronic renal failure and edema.
2. A client is about to undergo emergency abdominal surgery for appendicitis. A healthcare professional is demonstrating postoperative deep breathing and coughing exercises to the client. The healthcare professional realizes the client may be unprepared to learn if the client:
- A. Is not feeling well
- B. Reports severe pain
- C. Has low blood pressure
- D. Is anxious
Correct answer: B
Rationale: Severe pain can be a significant distraction and impediment to the learning process. When a client is experiencing severe pain, their focus and attention are primarily directed towards managing the pain, making it difficult for them to absorb and retain new information effectively. Options A, C, and D, although important considerations in a healthcare setting, do not directly impact the client’s ability to learn in the same way that severe pain does. Not feeling well, low blood pressure, and anxiety are all factors that can be addressed or managed to facilitate learning, unlike severe pain which can significantly hinder the learning process.
3. 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.
4. The pediatric clinic nurse examines a toddler with a tentative diagnosis of neuroblastoma. Findings observed by the nurse that are associated with this problem include which of these?
- A. Lymphedema and nerve palsy
- B. Hearing loss and ataxia
- C. Headaches and vomiting
- D. Abdominal mass and weakness
Correct answer: D
Rationale: The correct answer is D: Abdominal mass and weakness. In neuroblastoma, the most common presenting signs are related to the mass effect of the tumor, leading to an abdominal mass and symptoms of weakness. Lymphedema and nerve palsy (Choice A) are not typically associated with neuroblastoma. Hearing loss and ataxia (Choice B) are more indicative of other conditions like neurofibromatosis or brain tumors. Headaches and vomiting (Choice C) are more commonly seen in conditions such as brain tumors or increased intracranial pressure, but they are not specific to neuroblastoma.
5. A healthcare professional is caring for a client who has a new prescription for antihypertensive medication. Prior to administering the medication, the healthcare professional uses an electronic database to gather information about the medication and the effects it might have on this client. Which of the following components of critical thinking is the healthcare professional using when reviewing the medication information?
- A. Knowledge
- B. Experience
- C. Intuition
- D. Competence
Correct answer: A
Rationale: The correct answer is A: Knowledge. In this scenario, the healthcare professional is utilizing knowledge by gathering and applying information about the medication. Choice B, Experience, is not the best option as the focus is on accessing information about the medication rather than personal experience. Choice C, Intuition, refers to a gut feeling or instinct, which is not evident in the scenario. Choice D, Competence, relates more to overall ability and proficiency rather than the specific act of seeking information.
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