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Development of the limbs

Summary of Development of the limbs
 Limb buds appear at the end of the fourth week of development. They develop in a proximal-to-distal fashion, lead by the apical ectodermal ridge, a region of ectoderm on the distal border of the limb. Fingers and toes form when the cells of the apical ectodermal ridge start to die. Limb musculature and bones derive mainly from primitive streak mesoderm

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Development of the limbs

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High Yield Notes
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Development of the limbs

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The zone of polarizing activity establishes the anteroposterior axis by secretion of .

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A 1-hour-old male newborn is referred for review by the midwife on labour ward. He was vaginally delivered by his 33 year-old mother after an uncomplicated pregnancy. His APGARs were 8 and 10 at one and five minutes, respectively. While cleaning the newborn, the nurse noticed an abnormality of his right hand. (see picture)

Which of the following is the next best step in management?