Neural Exam - Newborn tone - arm recoil

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Newborn-normal-behaviour.jpg</wikiflv> This 5-day-old infant is in the alert, quiet state.
  • Arm traction is done with the baby in the supine position.
  • The wrist is grasped and the arm is pulled until the shoulder is slightly off the mat.
  • There should be some flexion maintained at the elbow.
  • Full extension at the elbow is seen in hypotonia.

Movie Source - Paul D. Larsen  
Movies from the PediNeuroLogic Exam website are used by permission of Paul D. Larsen, M.D., University of Nebraska Medical Center and Suzanne S. Stensaas, Ph.D., University of Utah School of Medicine. Additional materials were drawn from resources provided by Alejandro Stern, Stern Foundation, Buenos Aires, Argentina; Kathleen Digre, M.D., University of Utah; and Daniel Jacobson, M.D., Marshfield Clinic, Wisconsin. The movies are licensed under a Creative Commons Attribution-NonCommerical-ShareAlike 2.5 License.
Links: Neural Exam Movies | Movies

Cite this page: Hill, M.A. (2020, September 19) Embryology Neural Exam - Newborn tone - arm recoil. Retrieved from

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© Dr Mark Hill 2020, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G