HESI RN
HESI Medical Surgical Exam
1. A client with diabetes mellitus who is taking NPH insulin (Humulin N) in the evening is most likely to become hypoglycemic shortly after midnight because this insulin peaks in 6 to 8 hours. What intervention should the nurse recommend to help prevent hypoglycemia while the client is sleeping?
- A. Eat a bedtime snack.
- B. Avoid physical activity.
- C. Take half the usual dose of insulin.
- D. Discontinue insulin until the next meal.
Correct answer: A
Rationale: Eating a bedtime snack is the most appropriate intervention to prevent hypoglycemia during the night when NPH insulin peaks. This snack helps maintain blood glucose levels and counteracts the risk of hypoglycemia. Avoiding physical activity is not recommended as it can further lower blood sugar levels. Taking half the usual dose of insulin can lead to inadequate control of blood sugar levels. Discontinuing insulin until the next meal can result in uncontrolled hyperglycemia, especially during the peak action of NPH insulin.
2. A nurse has a prescription to insert a nasogastric tube into the stomach of an assigned client. Which action should the nurse take to insert the tube safely and easily?
- A. Placing the tube in warm water
- B. Hyperextending the head while inserting the tube
- C. Removing the tube if any resistance to insertion is met
- D. Asking the client to swallow as the tube is being advanced
Correct answer: D
Rationale: The correct action for the nurse to take to insert a nasogastric tube safely and easily is asking the client to swallow as the tube is being advanced. This action helps facilitate the passage of the tube through the esophagus into the stomach. Placing the tube in warm water (Choice A) is not a recommended practice for nasogastric tube insertion. Hyperextending the head (Choice B) can cause discomfort and is not necessary for safe insertion. Removing the tube if resistance is met (Choice C) is incorrect as it may cause harm or discomfort to the client. Asking the client to swallow helps the tube pass more smoothly and comfortably.
3. A client has made an appointment for her annual Papanicolaou test (a.k.a. Pap smear). The nurse who schedules the appointment should tell the client that:
- A. The test cannot be performed while the client is menstruating
- B. Vaginal douching is required at least 24 hours before the test
- C. Spicy foods should not be eaten on the day of the test
- D. The test has absolutely no discomfort associated with it
Correct answer: A
Rationale: The correct answer is A. A Pap smear cannot be performed with accurate results during menstruation. Menstrual blood may interfere with the test results. Choice B is incorrect as vaginal douching should be avoided for at least 24 hours before the test to prevent altering the cervical cells. Choice C is incorrect as there is no restriction on spicy foods before a Pap smear. Choice D is incorrect as some women may experience mild discomfort during the test, although it is generally well-tolerated.
4. The nurse is preparing to administer amoxicillin (Amoxil) to a patient and learns that the patient previously experienced a rash when taking penicillin. Which action will the nurse take?
- A. Administer the amoxicillin and have epinephrine available.
- B. Ask the provider to order an antihistamine.
- C. Contact the provider to discuss using a different antibiotic.
- D. Request an order for a beta-lactamase-resistant drug.
Correct answer: C
Rationale: When a patient has a history of rash from penicillin, it indicates a potential allergic reaction to penicillin and other related drugs, such as amoxicillin. It is crucial to avoid administering penicillins to such patients unless there is no alternative. The nurse's best action in this situation is to contact the provider to discuss using a different antibiotic from a different class. This approach helps prevent potential severe allergic reactions. While epinephrine and antihistamines are used to manage allergic reactions, administering amoxicillin despite the known allergy is not advisable and could lead to serious consequences. Requesting a beta-lactamase-resistant drug does not address the issue of potential allergic reactions in this scenario.
5. A healthcare professional is reviewing the results of renal function testing in a client with renal calculi. Which finding indicates to the healthcare professional that the client’s blood urea nitrogen (BUN) level is within the normal range?
- A. 2 mg/dL
- B. 18 mg/dL
- C. 25 mg/dL
- D. 35 mg/dL
Correct answer: B
Rationale: The normal BUN ranges from 5 to 20 mg/dL. A BUN level of 18 mg/dL falls within this normal range. Values of 25 and 35 mg/dL are elevated, suggesting potential renal insufficiency. Choice A (2 mg/dL) is abnormally low and not indicative of a normal BUN level.
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