Which early signs are associated with hydrocephalus in infants?

Choice A rationale

Restricting fluids is generally contraindicated in meningitis unless there is documented syndrome of inappropriate antidiuretic hormone (SIADH) or severe, life-threatening cerebral edema. Maintaining adequate hydration is crucial to prevent dehydration and support systemic circulation, especially since fever can increase fluid loss.

Choice B rationale

Monitoring for signs of increased intracranial pressure (ICP) is paramount because meningeal inflammation can lead to cerebral edema and impaired CSF reabsorption. Signs like changes in level of consciousness, bradycardia, and hypertension (Cushing's triad) require immediate intervention to prevent brain herniation.

Choice C rationale

Administering acetaminophen (or ibuprofen) is appropriate for controlling the systemic symptoms of fever (pyrexia) and managing headache/body pain associated with meningeal irritation. Effective fever control reduces metabolic demands and can decrease the risk of febrile seizures.

Choice D rationale

Administering IV antibiotics immediately is the standard for bacterial meningitis to prevent morbidity and mortality, but viral meningitis is typically self-limiting and managed with supportive care; thus, empirical antibiotics are not indicated if the viral etiology is confirmed or highly suspected.

Choice E rationale

Encouraging rest and hydration is the cornerstone of supportive care for viral meningitis. Rest reduces cerebral metabolic demand and prevents overexertion, while hydration helps combat fluid losses from fever and vomiting and supports overall recovery.

Choice F rationale

Providing a quiet, dimly lit environment helps reduce noxious stimuli that can exacerbate common symptoms like headache and photophobia (light sensitivity), which are caused by meningeal inflammation and irritation of cranial nerves, thus promoting comfort and rest.

Coarctation of the aorta is a congenital heart defect characterized by a narrowing of the aortic lumen, typically distal to the left subclavian artery. This narrowing creates an obstruction to blood flow, resulting in increased proximal pressure (upper extremities, head) and decreased distal pressure (lower extremities). Consequently, pulses and blood pressure are stronger in the arms than in the legs due to the mechanical obstruction limiting adequate systemic perfusion beyond the narrowed segment. Choice False rationale:

The assertion is inaccurate because coarctation, a stricture of the aorta, significantly impedes systemic blood flow to the distal body. The pressure gradient created across the narrowing causes the blood pressure and pulse amplitude to be significantly higher and stronger in the vessels proximal to the coarctation (upper body) and notably diminished in the vessels distal to the coarctation (lower body).