HESI LPN
Medical Surgical HESI
1. The nurse instructs the mother of a child with a ventricular septal defect that she can expect the child to become cyanotic when the child does what?
- A. Experiences an elevation in temperature.
- B. Sleeps on the left side.
- C. Cries vigorously.
- D. Eats.
Correct answer: C
Rationale: The correct answer is C: Cries vigorously. When the child cries vigorously, it increases the pressure in the right ventricle, allowing unoxygenated blood to enter the circulating volume, leading to cyanosis. This occurs due to the shunting of blood from the right side of the heart to the left side through the ventricular septal defect. Choices A, B, and D are incorrect because they do not directly impact the pressure in the right ventricle, which is crucial in causing cyanosis in this scenario.
2. An older client is receiving an IV of 5% dextrose in 0.45% normal saline at 75 mL/hour. Which assessment finding indicates to the nurse that the client is developing a complication from this therapy?
- A. Capillary refill takes > 3 seconds.
- B. Episodes of vertigo and loss of balance.
- C. Average daily output of 1200 ml.
- D. Pulse rate of 110 beats/minute and dyspnea upon exertion.
Correct answer: D
Rationale: The correct answer is D. Tachycardia and dyspnea are signs of fluid overload, which is a potential complication of IV fluid therapy. Choices A, B, and C are not directly related to fluid overload and are not typical signs of complications associated with the IV fluid therapy being administered.
3. Which type of lipoprotein is associated with decreasing the risk of atherosclerosis?
- A. High-density lipoprotein (HDL)
- B. Low-density lipoprotein (LDL)
- C. Very low-density lipoprotein (VLDL)
- D. Intermediate-density lipoprotein (IDL)
Correct answer: A
Rationale: The correct answer is High-density lipoprotein (HDL). HDL is known as 'good' cholesterol because it helps remove cholesterol from the arteries, reducing the risk of atherosclerosis. LDL (choice B) is considered 'bad' cholesterol as it can deposit cholesterol in the arteries, increasing the risk of atherosclerosis. VLDL (choice C) and IDL (choice D) are also associated with increased risk of atherosclerosis rather than decreasing it.
4. 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.
5. A client with a history of seizures is prescribed phenytoin. Which side effect should the nurse instruct the client to report?
- A. Drowsiness
- B. Gingival hyperplasia
- C. Weight gain
- D. Blurred vision
Correct answer: B
Rationale: The correct answer is B: Gingival hyperplasia. Phenytoin is known to cause gingival hyperplasia, which is an overgrowth of gum tissue. This side effect is important to report to the healthcare provider because it can lead to oral health problems. Choice A, drowsiness, is a common side effect of many antiepileptic drugs but is not specific to phenytoin. Choice C, weight gain, is not a typical side effect of phenytoin. Choice D, blurred vision, is not a common side effect of phenytoin; it is more commonly associated with other medications.
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