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. Based on this strip, what is the interpretation of this rhythm?
- A. Atrial fibrillation.
- B. Ventricular tachycardia.
- C. Normal sinus rhythm.
- D. Second-degree heart block.
Correct answer: C
Rationale: The correct answer is C, Normal sinus rhythm. Normal sinus rhythm is characterized by a regular rhythm, normal P waves, and a consistent PR interval. In this context, the strip likely shows a normal ECG pattern with these characteristics, indicating a healthy heart rhythm. Choices A, B, and D are incorrect. Atrial fibrillation would show an irregularly irregular rhythm with no discernible P waves. Ventricular tachycardia would display wide QRS complexes and a fast heart rate. Second-degree heart block would exhibit intermittent dropped QRS complexes.
3. 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.
4. The nurse is caring for a client with myasthenia gravis. Which symptom is most important for the nurse to report to the healthcare provider?
- A. Diplopia (double vision)
- B. Difficulty swallowing
- C. Weakness in the legs
- D. Fatigue
Correct answer: B
Rationale: In a client with myasthenia gravis, difficulty swallowing is the most crucial symptom to report to the healthcare provider. This is because it can lead to aspiration, a severe complication in these clients. Diplopia (double vision) and weakness in the legs are common symptoms of myasthenia gravis but are not as immediately dangerous as difficulty swallowing. Fatigue is also a common symptom in myasthenia gravis but does not pose the same risk of aspiration as difficulty swallowing.
5. A client with cancer is receiving chemotherapy with a known vesicant. The client's IV has been in place for 72 hours. The nurse determines that a new IV site cannot be obtained and leaves the present IV in place. What is the greatest clinical risk related to this situation?
- A. Impaired skin integrity
- B. Fluid volume excess
- C. Acute pain and anxiety
- D. Peripheral neurovascular dysfunction
Correct answer: A
Rationale: The correct answer is A: Impaired skin integrity. In this situation, the greatest clinical risk is related to impaired skin integrity due to the potential extravasation of the vesicant. Vesicants are substances that can cause severe tissue damage if they leak into the surrounding tissues. Choices B, C, and D are not the most significant risks in this scenario. Fluid volume excess, acute pain, and peripheral neurovascular dysfunction are not directly associated with leaving the IV in place with a known vesicant for an extended period.
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