The nurse is assessing a patient with suspected varus deviation clubfoot of the right foot. What assessment finding would confirm this to the nurse.

Choice A rationale Varus clubfoot (Talipes equinovarus) is a foot deformity where the foot is turned inward and downward, but a shorter leg is not a defining characteristic of this congenital foot anomaly. The inward turning of the foot is specifically due to inversion and adduction, and the heel is often pulled up (equinus), but the overall leg length should generally be symmetric. Choice B rationale Falling when attempting to crawl is an observation related to delayed gross motor skill development or general neurological or musculoskeletal impairment, but it is not a direct, definitive diagnostic physical sign of a varus clubfoot deformity. The diagnosis is made by physical assessment of the fixed positioning of the foot and ankle, not by functional mobility. Choice C rationale In a patient with an untreated or uncorrected clubfoot, the calf muscle on the affected leg is often smaller (atrophied) than the unaffected leg due to decreased use and potential neurovascular compromise over time, not the same size. Therefore, equal calf muscle size would suggest a bilateral issue or an absence of chronic unilateral deformity. Choice D rationale Varus deviation clubfoot, or Talipes equinovarus, is characterized by four primary components: equinus (plantarflexion), varus (heel inversion), adduction (forefoot turning in), and supination (medial rotation). The outward turning of the front half of the foot, known as forefoot abduction, describes the opposite condition, often seen in a valgus deformity, and thus would confirm the absence of a varus deviation.