Eyes, Ears, and Oral Cavity
Eyes, Ears, and Oral Cavity ( 5 Questions)
A nurse is examining a newborn’s ears.
The nurse should identify that which of the following findings may indicate a chromosomal disorder?
Low-set ears are ears that are positioned below the normal horizontal line drawn across both inner canthi of the eyes. Low-set ears may indicate a chromosomal disorder, such as DiGeorge syndrome or Noonan syndrome, or other congenital anomalies.
Small ear canals are not a sign of a chromosomal disorder, but rather a variation of normal anatomy.
Dry cerumen in the ears is not a sign of a chromosomal disorder, but rather a result of dehydration or lack of humidity.
Prominent antihelices are not a sign of a chromosomal disorder, but rather a normal feature of the external ear.
The newborn has low-set ears.
Low-set ears are ears that are positioned below the normal horizontal line drawn across both inner canthi of the eyes. Low-set ears may indicate a chromosomal disorder, such as DiGeorge syndrome or Noonan syndrome, or other congenital anomalies.
Choice B is wrong because small ear canals are not a sign of a chromosomal disorder, but rather a variation of normal anatomy.
Choice C is wrong because dry cerumen in the ears is not a sign of a chromosomal disorder, but rather a result of dehydration or lack of humidity.
Choice D is wrong because prominent antihelices are not a sign of a chromosomal disorder, but rather a normal feature of the external ear.
The antihelix is the curved prominence of cartilage parallel with and inside the helix (the rim) of the ear.