HESI RN
HESI Fundamentals Practice Exam
1. Which assessment data would provide the most accurate determination of proper placement of a nasogastric tube?
- A. Aspirating gastric contents to assure a pH value of 4 or less.
- B. Hearing air pass in the stomach after injecting air into the tubing.
- C. Examining a chest x-ray obtained after the tubing was inserted.
- D. Checking the remaining length of tubing to ensure that the correct length was inserted.
Correct answer: C
Rationale: The most accurate method to confirm the proper placement of a nasogastric tube is by examining a chest x-ray obtained after the tubing was inserted. This visual assessment allows healthcare providers to directly visualize the position of the tube in relation to anatomical landmarks, ensuring it is correctly placed in the stomach. Aspirating gastric contents or hearing air pass may provide some information but are not as definitive as a chest x-ray for confirming placement. Checking the remaining length of tubing is not a reliable method for determining proper placement as it does not indicate where the tip of the tube lies within the body.
2. The nurse is caring for a client who is 2 days postoperative following abdominal surgery. The client reports pain at the incision site and a small amount of purulent drainage is noted. What is the most appropriate nursing action?
- A. Apply a sterile dressing to the incision.
- B. Reinforce the dressing and document the findings.
- C. Remove the dressing and assess the incision site.
- D. Notify the healthcare provider.
Correct answer: D
Rationale: The correct answer is to notify the healthcare provider. Purulent drainage at the incision site is concerning as it may indicate an infection. The healthcare provider needs to be informed promptly to initiate appropriate treatment. Applying a sterile dressing (Choice A) may not address the underlying issue of infection. Reinforcing the dressing and documenting findings (Choice B) is important but should be preceded by notifying the healthcare provider. Removing the dressing and assessing the incision site (Choice C) may disturb the area and should be done under the guidance of the healthcare provider.
3. Which of the following options is the term used to represent alternative versions of a gene?
- A. Alleles
- B. Binary fission
- C. Heterozygous
- D. Homozygous
Correct answer: A
Rationale: The correct answer is A: Alleles. Alleles are different forms of a gene that can exist at a specific locus on a chromosome. They represent variations in a gene's DNA sequence. Choices B, C, and D are incorrect. Binary fission is a form of asexual reproduction in single-celled organisms, while heterozygous and homozygous refer to different combinations of alleles in an individual, not the alternative versions of a gene.
4. The nurse is assessing a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should the nurse monitor closely?
- A. Serum potassium level
- B. Hemoglobin level
- C. White blood cell count
- D. Serum calcium level
Correct answer: A
Rationale: In a client with chronic kidney disease (CKD) receiving erythropoietin therapy, the nurse should closely monitor the serum potassium level. Erythropoietin therapy can increase red blood cell production, leading to a higher demand for potassium. Monitoring potassium levels is crucial to prevent hyperkalemia, a potential risk associated with this therapy. Hemoglobin level (Choice B) is important to assess the effectiveness of erythropoietin therapy, but monitoring potassium levels takes precedence due to the risk of hyperkalemia. White blood cell count (Choice C) and serum calcium level (Choice D) are not directly affected by erythropoietin therapy in the context of chronic kidney disease.
5. The nurse is caring for a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should the nurse monitor closely?
- A. Serum potassium level
- B. Hemoglobin level
- C. White blood cell count
- D. Serum calcium level
Correct answer: A
Rationale: The correct answer is A: Serum potassium level. When a client with chronic kidney disease (CKD) is receiving erythropoietin therapy, the nurse should closely monitor the serum potassium level. Erythropoietin therapy can stimulate red blood cell production, leading to an increased demand for potassium. This increases the risk of hyperkalemia, making it crucial to monitor potassium levels closely. Choices B, C, and D are incorrect because erythropoietin therapy primarily affects red blood cell production, not hemoglobin, white blood cell count, or serum calcium levels.