A nurse is helping prepare a patient for blood chromosome analysis for a suspected chromosomal disorder.The nurse observes that the patient presents with epicanthal folds, a simian crease of the palm, a flat nasal bridge, and intellectual disability.Which of the following autosomal chromosome defects is most associated with these findings?

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Quizplus · Accepted Answer

Down syndrome, also known as trisomy 21, is associated with intellectual disability and physical characteristics such as epicanthal folds, a simian crease of the palm, and a flat nasal bridge. Cystic fibrosis is an autosomal recessive disorder that affects the lungs and digestive system. Cri du chat is a rare genetic disorder caused by a deletion of a portion of chromosome 5. Tay-Sachs is a rare inherited disorder that progressively destroys nerve cells in the brain and spinal cord. None of these disorders are associated with the described physical characteristics in the patient.

A Nurse Is Helping Prepare a Patient for Blood Chromosome