Which of the following findings in an infant may suggest the presence of subdural hemorrhage indicative of child abuse?
Normal head circumference and clear speech.
Sunken fontanels and clear lungs.
Flushed cheeks and stable vital signs.
Bulging fontanels and retinal hemorrhages.
The Correct Answer is D
Evaluating physical indicators of non-accidental trauma in infants requires knowledge of intracranial pathophysiology. Identifying clinical markers of increased intracranial pressure and ocular manifestations is vital for detecting severe injuries, such as subdural hematomas, often associated with abusive head trauma.
Choice A rationale
A normal head circumference, which typically increases by 1 to 2 centimeters per month in early infancy, suggests no acute intracranial swelling. Clear speech is not a relevant assessment for infants who are non-verbal.
Choice B rationale
Sunken fontanels are a clinical hallmark of dehydration and fluid volume deficit. In contrast, intracranial bleeding or edema would cause the fontanels to feel firm or appear bulging due to increased pressure within the skull.
Choice C rationale
Flushed cheeks are often associated with fever or environmental warmth. Stable vital signs, including a normal heart rate of 100 to 160 beats per minute, do not typically indicate the presence of an acute hemorrhage.
Choice D rationale
Bulging fontanels signify increased intracranial pressure from blood accumulation. Retinal hemorrhages are highly specific markers for vitreoretinal traction occurring during violent shaking, commonly seen in subdural hematomas resulting from physical abuse in infants.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The clinical presentation of bacterial meningitis in pediatric patients involves inflammatory responses within the meninges. Knowledge of the classic triad including thermal regulation dysfunction and meningeal irritation signs is essential to differentiate neurological infections from respiratory or gastrointestinal illnesses in children.
Choice A rationale
Viral or bacterial gastroenteritis and respiratory infections typically manifest with these symptoms. In meningitis, gastrointestinal distress is less common than neurological deficits caused by increased intracranial pressure and systemic inflammatory response syndrome affecting the brain.
Choice B rationale
Fever results from cytokine release during infection. Headache and nuchal rigidity occur because inflamed meninges are stretched during movement. These classic signs indicate meningeal irritation, requiring immediate lumbar puncture to evaluate cerebrospinal fluid for pathogens.
Choice C rationale
These constitutional symptoms are hallmark signs of chronic infections like tuberculosis or malignancies. Bacterial meningitis is characterized by an acute, rapid onset of symptoms rather than the slow, progressive weight loss and diaphoresis seen here.
Choice D rationale
Chest pain and palpitations are primary indicators of cardiopulmonary distress, such as pericarditis or arrhythmias. While systemic sepsis from meningitis can cause tachycardia, the primary presentation involves central nervous system dysfunction rather than localized thoracic pain.
Correct Answer is B
Explanation
The scenario requires understanding cerebrovascular anatomy and the pathophysiology of arteriovenous malformations. Arteriovenous malformations involve direct arterial to venous connections without a capillary bed. Application of knowledge regarding increased intracranial pressure and vascular rupture risks is necessary to identify common clinical manifestations.
Choice A rationale
Arteriovenous malformations typically cause localized neurological deficits rather than generalized weakness unless a significant hemorrhage occurs. Focal weakness depends on the specific brain region affected by the steal phenomenon where blood bypasses normal brain tissue through the malformation.
Choice B rationale
Increased intravascular pressure within the malformation and potential small leakages commonly trigger chronic or sudden severe headaches. The abnormal shunting of blood causes vascular distension and irritation of the meninges, which are highly sensitive to pressure changes.
Choice C rationale
Shortness of breath is a respiratory or cardiovascular symptom and is not physiologically linked to intracranial vascular malformations. Arteriovenous malformations are confined to the cerebral vasculature and do not interfere with pulmonary gas exchange or pulmonary circulation.
Choice D rationale
Nausea and vomiting are often secondary symptoms of increased intracranial pressure but are less specific than headaches for arteriovenous malformations. These symptoms typically emerge if the malformation ruptures, causing a sudden, massive increase in pressure within the skull.
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