which is a causative factor of hirschsprung disease
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Nursing Elites

HESI LPN

Medical Surgical Assignment Exam HESI

1. What is a causative factor of Hirschsprung disease?

Correct answer: C

Rationale: The correct answer is C: The absence of parasympathetic ganglion cells in a portion of the colon is a causative factor of Hirschsprung disease. This absence leads to the inability of the affected segment of the colon to relax, causing a functional obstruction. Choices A, B, and D are incorrect. Frequent evacuation of solids, liquid, and gases, excessive peristaltic movement, and one portion of the bowel telescoping into another are not causative factors of Hirschsprung disease.

2. After a CT scan with intravenous contrast medium, a client returns to the room complaining of shortness of breath and itching. Which intervention should the nurse implement?

Correct answer: C

Rationale: Preparing a dose of epinephrine is the correct intervention in this situation as the client is displaying symptoms of an anaphylactic reaction to the contrast medium used during the CT scan. Epinephrine is the first-line treatment for anaphylaxis due to its ability to reverse the symptoms rapidly. Calling respiratory therapy for a breathing treatment (Choice A) may not address the underlying allergic reaction and delay appropriate treatment. Sending for an emergency tracheostomy set (Choice B) is not indicated as the client's symptoms suggest an allergic reaction rather than airway obstruction. Reviewing the client's complete list of allergies (Choice D) is important but would not provide immediate relief for the client's current symptoms; administering epinephrine takes precedence in this situation.

3. When assessing an adolescent with depression, what is the most important question for the nurse to ask?

Correct answer: B

Rationale: The correct answer is B: 'Have you ever thought about suicide?' When assessing an adolescent with depression, it is crucial to ask direct questions about suicidal thoughts. This helps determine the severity of the situation, especially if the person has considered or planned to harm themselves. Choice A is not as direct and specific to suicidal ideation. Choice C focuses on improving mood rather than assessing the risk of harm. Choice D is unrelated to assessing suicidal ideation and the severity of the depression.

4. The nurse is caring for a newborn with a myelomeningocele. Before surgery, what should the nursing interventions include?

Correct answer: B

Rationale: The correct intervention before surgery for a newborn with a myelomeningocele is to cover the lesion with a sterile, saline-soaked gauze. This helps protect the exposed spinal cord and meninges from infection and damage. Choice A is incorrect because leaving the lesion uncovered can increase the risk of infection. Choice C is incorrect because applying lotion can introduce contaminants to the lesion. Choice D is incorrect because covering the lesion with a dry gauze can lead to adherence of the gauze to the wound, causing trauma upon removal and disrupting the healing process.

5. An adolescent female asks the nurse about taking retinoic acid (Accutane). What guidance should be provided by the nurse?

Correct answer: B

Rationale: The correct guidance the nurse should provide is that sexually active females must use contraception while taking Accutane and for 1 month after the 20 weeks it is prescribed. Choice A is incorrect because Accutane is typically taken for a longer duration than 10 weeks. Choice C is incorrect because Accutane does not lower hemoglobin levels quickly. Choice D is incorrect as Accutane is known for having many side effects, including the risk of birth defects.

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