HESI LPN
HESI Fundamentals Study Guide
1. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
2. The patient is being taught about flossing and oral hygiene. What instruction will the nurse include in the teaching session?
- A. Using waxed floss helps prevent bleeding
- B. Flossing removes plaque and tartar from the teeth
- C. Flossing at least 3 times a day is beneficial
- D. Applying toothpaste before flossing is harmful
Correct answer: B
Rationale: The correct answer is B. Flossing is essential for removing plaque and tartar between teeth, contributing to better oral hygiene. Choice A is not entirely accurate as waxed floss may not solely prevent bleeding. Flossing three times a day, as mentioned in choice C, can be excessive and unnecessary, while choice D is incorrect as applying toothpaste before flossing is not harmful but might not provide additional benefits.
3. A nurse is caring for a client who has herpes zoster. The client asks about complementary and alternative therapies for pain control. The nurse should inform the client that this condition is a contraindication for which of the following therapies?
- A. Acupuncture
- B. Massage therapy
- C. Aromatherapy
- D. Herbal supplements
Correct answer: A
Rationale: The correct answer is A, Acupuncture. Acupuncture is contraindicated for clients with herpes zoster due to the risk of infection at the needle sites. In individuals with herpes zoster, the skin's integrity is compromised, increasing susceptibility to infections. Therefore, acupuncture, which involves inserting needles into the skin, can introduce pathogens and lead to local infections. Massage therapy (B), aromatherapy (C), and herbal supplements (D) do not involve skin penetration like acupuncture and are generally considered safe complementary therapies for pain control in clients with herpes zoster.
4. A nurse educator is conducting a parenting class for new guardians of infants. Which of the following statements made by a participant indicated understanding?
- A. “I will set my water heater at 130°F.â€
- B. “Once my baby can sit up, they should be safe in the bathtub.â€
- C. “I will place my baby on their stomach to sleep.â€
- D. “Once my infant starts to push up, I will remove the mobile from over the crib.â€
Correct answer: D
Rationale: The correct answer is D. Removing the mobile when the baby starts to push up prevents choking hazards as infants can reach and grab objects posing a risk of choking. Choice A is unsafe as setting the water heater at 130°F can scald a child. Choice B is incorrect because even when a baby can sit up, they still require close supervision in the bathtub. Choice C is unsafe as current guidelines recommend placing babies on their backs to sleep to reduce the risk of sudden infant death syndrome (SIDS). Therefore, choices A, B, and C are incorrect or unsafe practices for infant care.
5. While reviewing the medical records of a client with a pressure ulcer, a nurse should expect which of the following findings?
- A. Albumin level of 3 g/dL
- B. Hemoglobin level of 12 g/dL
- C. WBC count of 6,000/mm³
- D. Blood glucose level of 100 mg/dL
Correct answer: A
Rationale: An albumin level below 3.5 g/dL indicates protein deficiency, which can impair wound healing and contribute to pressure ulcer formation. Hemoglobin level and WBC count are not directly associated with pressure ulcers. Blood glucose level, while important for overall health, is not specifically linked to pressure ulcer development.
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