Respuesta :
The infant is irritable, and the nurse observes nuchal rigidity. Bulging posterior fontanelle would indicate an increase in intracranial pressure. Hence, option (3) will be regarded as the relevant option.
Give a brief account on Fontanelles.
There are several bones in the skull, including 8 in the skull itself and 14 in the face region. A sturdy, bony chamber that supports and protects the brain is created when they come together. The sutures are the places where the bones connect to one another. At birth, the bones are loosely connected. This enables the head to adapt its shape in order to facilitate passage through the birth canal. Over time, the sutures absorb minerals and solidify, firmly connecting the skull bones. A fontanelle is a membrane-covered "soft area" that develops in a newborn where two sutures join (fontanel). During the first year of a baby's life, the fontanelles allow for the formation of the brain and skull.
On a newborn's skull, there are often numerous fontanelles. They are mostly found on the sides, back, and top of the head. Fontanelles form closed, solid bone regions as they age, just like the sutures do. Most frequently, by the time a baby is 1 to 2 months old, the fontanelle in the rear of the skull (posterior fontanelle) shuts. The anterior fontanelle, located at the top of the head, typically shuts between 7 and 19 months. When touched, the fontanelles ought to feel strong and very slightly inwardly curled. When the brain fills with fluid or swells, increasing pressure inside the skull, a tight or bulging fontanelle results.
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