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. What is the structure of deoxyribonucleic acid (DNA)?
- A. single spiral
- B. double helix
- C. sphere
- D. cube
Correct answer: B
Rationale: The correct answer is B: double helix. DNA is structured as a double helix, resembling a twisted ladder made up of two strands of nucleotides. Choice A, single spiral, is incorrect as DNA is not a single spiral structure. Choice C, sphere, is incorrect as DNA does not form a spherical shape. Choice D, cube, is incorrect as DNA does not have a cubic structure. Understanding the double helix structure of DNA is essential as it allows for the storage and transmission of genetic information in living organisms.
3. A client is 48 hours postoperative following a small bowel resection. The client reports gas pains in the periumbilical area. The nurse should plan care based on which of the following factors contributing to this postoperative complication?
- A. Impaired peristalsis of the intestines
- B. Infection at the surgical site
- C. Fluid overload
- D. Inadequate pain management
Correct answer: A
Rationale: Gas pains in the periumbilical area postoperatively are often caused by impaired peristalsis and bowel function. Following abdominal surgery, it is common for peristalsis to be reduced due to surgical manipulation and anesthesia effects. This reduction in peristalsis can lead to the accumulation of gas in the intestines, resulting in gas pains. Infection at the surgical site (Choice B) would present with localized signs of infection such as redness, swelling, warmth, and drainage, rather than diffuse gas pains. Fluid overload (Choice C) would manifest with symptoms such as edema, increased blood pressure, and respiratory distress, not gas pains. Inadequate pain management (Choice D) may lead to increased discomfort, but it is not the primary cause of gas pains in the periumbilical area following a small bowel resection.
4. A parent of a 2-year-old child tells a nurse at the clinic, 'Whenever I go to the store, my child has a screaming tantrum, demanding a toy or candy on the shelves. How can I deal with this situation?' What is the nurse’s best response?
- A. “Attempt to distract the child by offering a toy to the child.”
- B. “Say nothing and allow the tantrum to continue until it ends.”
- C. “Have a babysitter stay with the child at home until the child outgrows this behavior.”
- D. “Give the child the item while in the store, and when the child loses interest, return the item to the shelf.”
Correct answer: B
Rationale: The nurse's best response is to allow the tantrum to continue until it ends without giving in to the child's demands. By not rewarding the child with the desired item during a tantrum, the child learns that this behavior is not effective in getting what they want. Offering a toy to distract the child (Choice A) may reinforce the idea that tantrums lead to rewards. Leaving the child with a babysitter (Choice C) does not address the issue at hand, which is teaching the child appropriate behavior in public places. Giving the child the item temporarily (Choice D) may encourage the child to have tantrums in the future to obtain desired items.
5. The nurse is assigned to care for four surgical clients. After receiving report, which client should the nurse see first?
- A. An older client receiving packed RBCs on the third day postoperatively for colon resection
- B. An older client with continuous bladder irrigation who is 2 days postoperatively for bladder surgery
- C. An adult one day postoperatively from laparoscopic cholecystectomy requesting pain medication
- D. An adult in Buck’s traction, scheduled for hip arthroplasty within the next 12 hours
Correct answer: B
Rationale: The correct answer is B because the client with continuous bladder irrigation post-bladder surgery is at risk for complications like infection or bleeding. This client requires immediate attention to assess for any signs of complications such as urinary retention, hemorrhage, or infection. Choices A, C, and D have less urgent needs compared to a client with continuous bladder irrigation, which requires priority assessment.