HESI LPN
Medical Surgical HESI
1. Laboratory findings indicate that a client’s serum potassium level is 2.5 mEq/L. What action should the nurse take?
- A. Administer potassium supplements orally.
- B. Increase the client's dietary potassium intake.
- C. Inform the healthcare provider of the need for potassium replacement.
- D. Monitor the client's ECG continuously.
Correct answer: C
Rationale: A serum potassium level of 2.5 mEq/L is critically low, indicating severe hypokalemia. In this situation, it is essential for the nurse to inform the healthcare provider promptly about the need for potassium replacement. Administering potassium supplements orally or increasing dietary potassium intake is not appropriate in cases of critically low potassium levels as immediate and precise replacement is necessary. Monitoring the client's ECG continuously is important in severe cases of hypokalemia, but the priority action should be to inform the healthcare provider for further management and treatment.
2. The cognitive impairment is classified into four levels based on the intelligence quotient (IQ). How is a child with an IQ of 45 classified?
- A. Within the normal low range
- B. Educable
- C. Trainable
- D. Severe
Correct answer: C
Rationale: A child with an IQ of 45 is classified as 'Trainable' in the context of cognitive impairment levels. This category is determined by an IQ range of 35 to 55. Choice A ('Within the normal low range') is incorrect as an IQ of 45 falls within the range associated with the 'Trainable' level, not the 'Normal low range.' Choice B ('Educable') is incorrect because this classification typically corresponds to individuals with slightly higher IQs that allow for academic progress with support. Choice D ('Severe') is incorrect as it does not align with the IQ level of 45, which falls within the 'Trainable' category.
3. Which signs/symptoms would be considered classical signs of meningeal irritation?
- A. Positive Kernig sign, diarrhea, and headache
- B. Negative Brudzinski sign, positive Kernig sign, and irritability
- C. Positive Brudzinski sign, positive Kernig sign, and photophobia
- D. Negative Kernig sign, vomiting, and fever
Correct answer: C
Rationale: The correct answer is C: Positive Brudzinski sign, positive Kernig sign, and photophobia are considered classical signs of meningeal irritation. The Kernig sign is positive when the leg is extended at the knee and then raised, resulting in pain and resistance. The Brudzinski sign is positive when flexing the neck causes flexion of the hips and knees due to meningeal irritation. Photophobia, or sensitivity to light, is a common symptom due to meningeal inflammation. Choices A, B, and D are incorrect because they do not include the classic signs associated with meningeal irritation.
4. What is a priority action for the nurse when caring for a client with suspected meningitis?
- A. Isolate the client in a private room
- B. Administer intravenous antibiotics
- C. Obtain a throat culture
- D. Perform a chest x-ray
Correct answer: B
Rationale: Administering intravenous antibiotics is the priority when caring for a client with suspected meningitis. The prompt administration of antibiotics is crucial to treat bacterial meningitis and prevent potential complications. Isolating the client in a private room may be necessary to prevent the spread of infection, but antibiotic administration takes precedence. Obtaining a throat culture and performing a chest x-ray are important diagnostic measures, but they do not address the immediate need for antibiotic therapy in suspected bacterial meningitis.
5. On the first postoperative day, the nurse finds an older male client disoriented and trying to climb over the bed railing. Previously, he was oriented to person, place, and time on admission. Which intervention should the nurse implement first?
- A. Administer a sedative.
- B. Determine the client’s blood pressure.
- C. Apply soft restraints.
- D. Call for assistance.
Correct answer: B
Rationale: The correct intervention the nurse should implement first is to determine the client’s blood pressure. Assessing the blood pressure is crucial in this situation to rule out physiological causes like hypotension leading to the client's disorientation. Administering a sedative (Choice A) without understanding the underlying cause may worsen the situation. Applying soft restraints (Choice C) should not be the initial action and can be considered later if necessary. Calling for assistance (Choice D) may be needed eventually, but assessing the client's blood pressure takes precedence to address the immediate concern.
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