Answer:
C. Tests of kidney function
Explanation:
Marfan syndrome is an inherited disease that affects connective tissue - responsible for strengthening body structures. The disease usually affects the heart, the eyes, the blood vessels as well as the skeleton. Marfan's syndrome is an autosomal dominant disease. This means that only one mutation in one of the chromosomal alleles is required for clinical manifestations of symptoms.
Signs and symptoms of Marfan syndrome often vary greatly from patient to patient, even if they belong to the same family. Not all people diagnosed with the disease have all the characteristic clinical manifestations, which can affect mainly the connective tissue of three systems of our body: skeletal, cardiac and ocular. For this reason, in relation to the child exposed in the question, who has Marfan syndrome, the renal function test would be the lowest priority assessment by the health professional, as the hydrome does not affect the functioning of the kidneys.