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 nurse determines that an adult client who is admitted to the post-anesthesia care unit (PACU) following abdominal surgery has a tympanic temperature of 94.6°F (34.4°C), a pulse rate of 88 beats/minute, a respiratory rate of 14 breaths/minute, and a blood pressure of 94/68 mmHg. Which action should the nurse implement?
- A. Check the BP every five minutes for one hour.
- B. Raise the HOB 60 to 90 degrees.
- C. Ask the client to cough and deep breathe.
- D. Take the client’s temperature using another method.
Correct answer: D
Rationale: Taking the temperature using another method is essential in this situation to verify if the low reading is accurate and requires further intervention. The tympanic temperature of 94.6°F may be inaccurate due to various factors such as improper technique or environmental conditions. Checking the blood pressure every five minutes for one hour (Choice A) is not the priority in this case as the low blood pressure reading alone does not necessitate such frequent monitoring. Raising the head of the bed 60 to 90 degrees (Choice B) is not directly related to addressing the low temperature and blood pressure. Asking the client to cough and deep breathe (Choice C) is a general intervention that may not directly address the specific concern of the low temperature reading.
3. What is the main characteristic of cystic fibrosis?
- A. Multiple upper respiratory infections
- B. An underproduction of exocrine glands
- C. Excessive, thick mucus
- D. An overproduction of thin mucus
Correct answer: C
Rationale: The main characteristic of cystic fibrosis is the production of excessive, thick mucus. This thick mucus leads to blockages in the airways, digestive system, and other organs. Choice A is incorrect because while individuals with cystic fibrosis are more prone to respiratory infections, the main characteristic is the mucus production. Choice B is incorrect as cystic fibrosis is characterized by the overproduction, not underproduction, of exocrine glands. Choice D is also incorrect as the mucus produced in cystic fibrosis is thick, not thin.
4. A client with a spinal cord injury at the level of T1 is at risk for autonomic dysreflexia. Which symptom is indicative of this condition?
- A. Hypotension
- B. Tachycardia
- C. Severe headache
- D. Flushed skin below the level of injury
Correct answer: C
Rationale: Corrected Rationale: Autonomic dysreflexia is a condition commonly seen in clients with spinal cord injuries at T6 or above. It is characterized by a sudden onset of severe hypertension, pounding headache, profuse sweating, nasal congestion, and flushing of the skin above the level of injury. The severe headache is a key symptom resulting from uncontrolled hypertension. Choices A, B, and D are incorrect as autonomic dysreflexia typically presents with hypertension, not hypotension, tachycardia, or flushed skin below the level of injury.
5. A community hit by a hurricane has suffered mass destruction and flooding. Several facilities are not functioning, and the area is contaminated with human excretions. The nurse is developing a plan of care for clients diagnosed with cholera after an outbreak. Which intervention has the highest priority?
- A. Administer prophylactic antibiotics as prescribed.
- B. Provide fluid and electrolyte replacement.
- C. Isolate all infectious diarrhea victims.
- D. Administer cholera vaccine.
Correct answer: B
Rationale: Providing fluid and electrolyte replacement is the highest priority to prevent dehydration and shock in clients with cholera. Administering prophylactic antibiotics may be necessary but is not the highest priority. Isolating infectious diarrhea victims is important for preventing the spread of infection, but addressing fluid and electrolyte imbalances takes precedence. Administering a cholera vaccine is preventive and not the immediate priority in treating clients already diagnosed with cholera.
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