HESI LPN
Nutrition Final Exam Quizlet
1. Which lab result should be abnormal in a child with hemophilia?
- A. Prothrombin time
- B. Bleeding time
- C. Platelet count
- D. Partial thromboplastin time
Correct answer: D
Rationale: In a child with hemophilia, the lab result that should be abnormal is the partial thromboplastin time (PTT). Hemophilia is a disorder that affects the clotting factors in the intrinsic pathway of coagulation, leading to a prolonged PTT. Prothrombin time (Choice A) assesses the extrinsic pathway and should be normal in hemophilia. Bleeding time (Choice B) evaluates platelet function, which is typically normal in hemophilia. Platelet count (Choice C) measures the number of platelets and is not directly affected by hemophilia.
2. A client is suspected of being poisoned and presents with symmetric, descending flaccid paralysis, blurred vision, double vision, and dry mouth. The nurse should consider these findings consistent with which potential bioterrorism agent?
- A. ricin
- B. botulism toxin
- C. sulfur mustard
- D. yersinia pestis
Correct answer: B
Rationale: The correct answer is B: botulism toxin. Botulism toxin is associated with symmetric, descending flaccid paralysis, blurred vision, double vision, and dry mouth, which are consistent with the client's presentation. Ricin (Choice A) typically presents with gastrointestinal symptoms. Sulfur mustard (Choice C) is a blistering agent causing skin, eye, and respiratory issues. Yersinia pestis (Choice D) is associated with the bubonic plague, presenting with fever, malaise, and buboes.
3. After inserting an NG tube for a client, which of the following assessment findings should the nurse expect to confirm correct tube placement?
- A. An x-ray shows the end of the tube above the pylorus.
- B. The tube is aspirated and contains clear gastric fluid.
- C. The tube is flushed with sterile water without resistance.
- D. The client does not cough or choke during tube insertion.
Correct answer: B
Rationale: Correct placement of an NG tube is confirmed by aspirating gastric fluid, which indicates that the tube is in the stomach. An x-ray can help visualize tube placement, but it alone does not confirm correct placement. Flushing the tube with sterile water without resistance indicates patency but not necessarily correct placement. The absence of coughing or choking does not confirm tube placement and is more related to the client's comfort during the procedure.
4. Twenty-year-old Jack is extremely tall and has very thick facial hair. Most of his male secondary sex characteristics are also more pronounced than men of his age. In this scenario, Jack is most likely:
- A. an XYY male.
- B. diagnosed with Klinefelter syndrome.
- C. an XXY male.
- D. diagnosed with Down syndrome.
Correct answer: A
Rationale: The correct answer is A: an XYY male. Individuals with XYY syndrome often exhibit increased height and more pronounced secondary male characteristics, such as thick facial hair. Choice B, Klinefelter syndrome (XXY), typically presents with less prominent male secondary sex characteristics due to the presence of an extra X chromosome. Choice C, XXY male, refers to Klinefelter syndrome, which does not align with the description of Jack having more pronounced male secondary sex characteristics. Choice D, Down syndrome, is caused by a trisomy of chromosome 21 and is not associated with the physical characteristics described in the scenario.
5. A client with a large pleural effusion undergoes a thoracentesis. Following the procedure, which assessment finding warrants immediate intervention by the nurse?
- A. The client has asymmetrical chest wall expansion
- B. The client complains of pain at the insertion site
- C. The client's chest x-ray indicates decreased pleural effusion
- D. The client's arterial blood gases show pH 7.35, PaO2 85, PaCO2 35, HCO3 26
Correct answer: A
Rationale: Asymmetrical chest wall expansion is a critical finding post-thoracentesis as it may suggest a pneumothorax, requiring immediate intervention to prevent further complications. The other options, such as pain at the insertion site (Choice B), decreased pleural effusion on chest x-ray (Choice C), and normal arterial blood gases within acceptable ranges (Choice D) do not indicate an immediate need for intervention like asymmetrical chest wall expansion does.