HESI LPN
HESI Fundamentals Exam
1. A client with a new diagnosis of diabetes mellitus is being taught how to administer insulin. Which of the following instructions should the nurse include?
- A. Administer the insulin in the same body area each time.
- B. Store the insulin according to the manufacturer's instructions.
- C. Rotate injection sites within the same body area.
- D. Inject the insulin at a 45-degree angle.
Correct answer: C
Rationale: The correct instruction the nurse should include is to rotate injection sites within the same body area. This practice helps prevent lipodystrophy, a condition characterized by the thickening or thinning of subcutaneous fat at the injection sites, which can affect insulin absorption. Choice A is incorrect because administering insulin in the same area each time can lead to lipodystrophy. Choice B is incorrect as insulin should be stored according to the manufacturer's instructions, which may include refrigeration. Choice D is incorrect because the angle of insulin injection (usually 90 degrees) is determined by the length of the needle and the amount of subcutaneous fat, not a fixed 45-degree angle.
2. To evaluate a client's understanding of self-administering insulin within the psychomotor domain of learning, what action should the instructor take?
- A. Have the client demonstrate the procedure.
- B. Explain the procedure again.
- C. Ask the client to describe the procedure.
- D. Observe the client watching a video on the procedure.
Correct answer: A
Rationale: Having the client demonstrate the procedure is the most appropriate action to evaluate understanding within the psychomotor domain of learning. This allows the instructor to assess the client's ability to perform the skill, which is a key aspect of this domain. Choice B, explaining the procedure again, focuses on the cognitive domain rather than the psychomotor domain. Choice C, asking the client to describe the procedure, pertains more to the verbal or cognitive domain of learning. Choice D, observing the client watching a video on the procedure, does not directly assess the client's ability to perform the skill in the psychomotor domain.
3. A healthcare professional is reviewing the laboratory values for a client who has a positive Chvostek's sign. Which of the following laboratory findings should the healthcare professional expect?
- A. Decreased calcium
- B. Elevated potassium
- C. Increased sodium
- D. Low hemoglobin
Correct answer: A
Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.
4. A client who had a myocardial infarction (MI) 2 days ago has many questions about this condition. What area is a priority for the nurse to discuss at this time?
- A. Daily needs and concerns
- B. The overview of cardiac rehabilitation
- C. Medication and diet guidelines
- D. Activity and rest guidelines
Correct answer: A
Rationale: Addressing the client's daily needs and concerns is a priority to help alleviate anxiety and ensure the client understands the immediate post-MI care. Daily needs and concerns encompass basic aspects like comfort, hygiene, emotional support, and overall well-being, which are crucial in the early recovery phase post-MI. Discussing cardiac rehabilitation, medication and diet guidelines, or activity and rest guidelines are important topics but addressing immediate personal needs and concerns takes precedence to establish a supportive and informative care environment.
5. The caregiver is teaching parents about the diet for a 4-month-old infant with gastroenteritis and mild dehydration. In addition to oral rehydration fluids, the diet should include
- A. Formula or breast milk
- B. Broth and tea
- C. Rice cereal and apple juice
- D. Gelatin and ginger ale
Correct answer: A
Rationale: The correct answer is A: Formula or breast milk. In infants with gastroenteritis and mild dehydration, it is essential to continue feeding them with formula or breast milk along with oral rehydration fluids to provide adequate nutrition and maintain hydration. Option B, broth and tea, may not provide the necessary nutrients and electrolytes needed for the infant's recovery. Option C, rice cereal and apple juice, can be harsh on the digestive system and may exacerbate diarrhea. Option D, gelatin and ginger ale, do not provide the necessary nutrients and can worsen the condition due to the high sugar content in ginger ale.
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