Neurologic Exam-Pediatric | 3-month-old | Normal | Reflexes - Deep Tendon Reflexes

3-month-old - Normal 11 - Reflexes - Deep Tendon Reflexes: One of the main obstacles to obtaining deep tendon reflexes at this age is catching the extremity at rest. Positioning the extremity is also important. As demonstrated in this baby, a crossed adductor can be seen at this age and still be normal but should not persist beyond 7 months of age. A few beats of ankle clonus can be normal in the first few weeks of life but sustained ankle clonus at any age is abnormal.