HESI RN
HESI Medical Surgical Exam
1. A client with type 1 diabetes mellitus has influenza. The nurse should instruct the client to:
- A. Increase the frequency of self-monitoring (blood glucose testing).
- B. Reduce food intake to alleviate nausea.
- C. Discontinue the insulin dose if unable to eat.
- D. Take the normal dose of insulin.
Correct answer: A
Rationale: During illness, individuals with type 1 diabetes mellitus may experience increased insulin requirements due to factors such as stress and the release of counterregulatory hormones. Increasing the frequency of self-monitoring, as stated in choice A, is crucial to closely monitor and adjust insulin doses as needed. Choice B, reducing food intake to alleviate nausea, is incorrect as it may lead to hypoglycemia and does not address the increased insulin needs during illness. Choice C, discontinuing the insulin dose if unable to eat, is dangerous as it can result in uncontrolled hyperglycemia. Choice D, taking the normal dose of insulin, may not be sufficient during illness when insulin requirements are likely elevated.
2. A client receives a prescription for 1 liter of lactated Ringer's intravenously to be infused over 6 hours. How many mL/hr should the nurse program the infusion pump to deliver? (Enter numerical value only. If rounding is needed, round to the nearest whole number.)
- A. 167 mL/hr
- B. 200 mL/hr
- C. 83 mL/hr
- D. 111 mL/hr
Correct answer: A
Rationale: The correct infusion rate is 167 mL/hr. This is calculated by dividing the total volume (1000 mL) by the total time (6 hours), resulting in 166.67 mL/hr, which should be rounded to the nearest whole number as 167 mL/hr. This calculation ensures a steady infusion rate over the specified time frame. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation based on the volume and time provided in the prescription.
3. A serum phenytoin determination is prescribed for a client with a seizure disorder who is taking phenytoin (Dilantin). Which result indicates that the prescribed dose of phenytoin is therapeutic?
- A. 3 mcg/mL
- B. 8 mcg/mL
- C. 16 mcg/mL
- D. 28 mcg/mL
Correct answer: C
Rationale: The correct answer is 16 mcg/mL (Choice C). The therapeutic serum phenytoin range is typically 10 to 20 mcg/mL. A level below this range may lead to continued seizure activity, indicating subtherapeutic levels. Choices A, B, and D are below the therapeutic range and would not be considered therapeutic for a client with a seizure disorder on phenytoin therapy.
4. What is the most common cause of peptic ulcers?
- A. Helicobacter pylori infection
- B. NSAID use
- C. Excessive alcohol consumption
- D. Stress
Correct answer: A
Rationale: Helicobacter pylori infection is the most common cause of peptic ulcers. This bacterium can weaken the protective mucous coating of the stomach and duodenum, allowing acid to get through to the sensitive lining beneath. NSAID use (Choice B) can also cause peptic ulcers by disrupting the stomach's mucosal barrier. Excessive alcohol consumption (Choice C) and stress (Choice D) can exacerbate and contribute to ulcer formation but are not the primary cause.
5. A client is unsure of the decision to undergo peritoneal dialysis (PD) and wishes to discuss the advantages of this treatment with the nurse. Which statements by the nurse are accurate regarding PD? (Select all that apply.)
- A. You will not need vascular access to perform PD.
- B. There is less restriction of protein and fluids.
- C. You have flexible scheduling for the exchanges.
- D. All of the above
Correct answer: D
Rationale: The correct answer is D, as all the statements are accurate advantages of peritoneal dialysis (PD). Peritoneal dialysis does not require vascular access, offers less restriction on protein and fluids, and provides flexibility in scheduling for the exchanges. Choice A is correct because one of the advantages of PD is not needing vascular access, which is required in hemodialysis. Choice B is correct because PD allows for less dietary restriction compared to hemodialysis. Choice C is correct because PD allows for flexible scheduling of exchanges, providing more independence to the individual undergoing treatment.
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