NORCET -4 , 2023: Which of the following is a most clinical manifestation of VP shunt failure in an infant?

NORCET -4 , 2023

Child Health Nursing (Pediatrics)

Hard

Appeared in: NORCET -4 , 2023

Explanation

Poor feeding is a common, non-specific, and early sign of increased intracranial pressure (ICP) in an infant due to VP shunt malfunction.
Infants often manifest systemic illness or discomfort through changes in feeding behavior before more dramatic neurological signs appear.
Increased ICP can cause nausea, vomiting, and general malaise, leading to feeding difficulties.
Compared to a significant alteration in level of consciousness, which is a later and more severe sign, poor feeding is a more sensitive early indicator for parents and nurses to observe.

Option B: Infants cannot verbalize or report that they have a headache. While they may be irritable due to head pain, 'headache' is a subjective symptom that cannot be a clinical manifestation in a pre-verbal child.
Option C: While lethargy (a mild alteration in LOC) can be an early sign, a significant alteration in LOC is generally considered a later and more severe sign of dangerously high intracranial pressure. Poor feeding often precedes significant changes in consciousness.
Option D: This term is less clinically precise than 'poor feeding' when describing an infant's behavior. 'Poor feeding' encompasses not just a lack of desire to eat but also difficulty with the mechanics of feeding, such as a weak suck, tiring easily, or vomiting.

Clinical Relevance

Nursing practice connection: Use the key finding related to Clinical manifestations of ventriculoperitoneal (VP) shunt failure in infants to guide bedside assessment, documentation, and the next nursing action.
Nurses must educate parents about the early, subtle signs of shunt malfunction, emphasizing changes in feeding, irritability, and vomiting, as prompt recognition is key to preventing severe brain injury.
Accurate and consistent measurement of head circumference at every health visit is a critical nursing responsibility for infants with VP shunts, as an accelerated growth curve is a primary indicator of malfunction.
A key nursing assessment for an infant with a suspected shunt failure includes palpating the fontanelle for bulging or tenseness and assessing for a high-pitched cry.

How to Approach the Question

First, identify the key elements of the question: the condition (VP shunt failure) and the patient population (an infant).
Recall that the clinical signs of increased intracranial pressure (ICP) differ significantly between infants and older children/adults due to the infant's open fontanelles and unfused cranial sutures.
Evaluate each option based on what is observable and typical for an infant. Eliminate 'Headache' because an infant cannot report this subjective symptom.
Differentiate between the remaining options by considering early versus late signs of ICP. Early signs are often subtle and non-specific.
Compare 'Poor feeding' and 'Alteration in LOC'. Recognize that changes in feeding are a very sensitive and early indicator of almost any illness in an infant, including rising ICP.
Conclude that while alteration in LOC does occur, significant changes are typically a later, more severe sign. Therefore, poor feeding is the best answer for an early clinical manifestation.

Concept Tested & Keywords

Concept Tested: Clinical manifestations of ventriculoperitoneal (VP) shunt failure in infants.
Stem keywords: VP shunt failure, infant, clinical manifestation
Lead-in keywords: most
Clinical cues: Patient is an infant, which is critical as signs differ from older children.

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E6 Nelson Textbook of Pediatrics(2024) — Volume 2 p. 1385-1387

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 pp. 1157-1159, 1673-1675