A nurse is preparing a newborn with a myelomeningocele sac for surgery. The most appropriate intervention to keep the site sterile and protected is to?

Appeared in: NORCET -4 , 2023

Explanation

The primary goal in pre-operative care for myelomeningocele is to protect the exposed neural tissue from injury, infection, and drying.
Covering the sac with a sterile dressing moistened with normal saline is the standard of care.
This intervention keeps the delicate tissues hydrated, preventing desiccation and necrosis.
The moist dressing also provides a sterile barrier against environmental contaminants, reducing the risk of meningitis.
Dressings must be changed frequently (every 2-4 hours) to ensure they remain moist and sterile.

Option A: Leaving the sac exposed to air would cause the delicate neural tissue and meninges to dry out, leading to tissue damage, cracking, and an increased risk of rupture and infection.
Option B: Petroleum jelly is not used because it can be toxic to the exposed neural tissue. Furthermore, it can cause dressings to adhere to the fragile sac, leading to trauma and potential rupture upon removal.
Option D: A dry dressing will adhere to the moist surface of the sac. When the dressing is removed, it can tear the fragile tissue, causing a cerebrospinal fluid leak and increasing the risk of infection and trauma.

Clinical Relevance

Nursing practice connection: Knowing Pre-operative nursing care for a newborn with myelomeningocele helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
A nurse's immediate and correct pre-operative management of a myelomeningocele sac is critical to preventing life-threatening meningitis and preserving as much neurological function as possible.
Meticulous infection control, including preventing contamination from urine and feces, is a top nursing priority.
Nurses must also monitor for signs of hydrocephalus (e.g., increasing head circumference, bulging fontanelles), a common complication, and report them promptly.

How to Approach the Question

First, identify the core clinical problem: a newborn with a myelomeningocele, which is an open neural tube defect with exposed, delicate neural tissue.
Recall the primary nursing goals for this condition before surgery: prevent infection, prevent drying/desiccation of the tissue, and prevent physical injury/rupture of the sac.
Evaluate each option based on these three goals.
Option A (expose to air) fails to prevent drying.
Option B (petroleum) is toxic and can cause injury on removal.
Option D (dry dressing) will adhere to the sac and cause injury on removal.

Concept Tested & Keywords

Concept Tested: Pre-operative nursing care for a newborn with myelomeningocele.
Stem keywords: newborn, myelomeningocele sac, surgery, intervention, sterile, protected
Lead-in keywords: most appropriate
Clinical cues: The diagnosis of myelomeningocele in a newborn is a critical cue, indicating an exposed neural tube defect that requires immediate, specialized care to prevent infection and further neurological damage.

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E6 Text Book Of Pediatric Nursing 3rd Panchali Pal — Part 2 (pp 239-476 of 713) p. 223-225

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1081-1083

E6 Nursing Fundamentals Potter Perry 12e Part 6 p. 121-123

Practise the full NORCET -4 , 2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.