Page 823 - Saunders Comprehensive Review For NCLEX-RN
P. 823

delayed.
                                                             d. A body jerk motion may be the
                                                                response between 8 and 18 weeks.
                                                             e. A persistent response lasting more than
                                                                6 months may indicate a neurological
                                                                abnormality.
                                             6. Startle reflex (often considered the same as the Moro
                                                reflex but the response is different)
                                                             a. The response is best elicited if the
                                                                newborn is at least 24 hours old.
                                                             b. The examiner makes a loud noise or
                                                                claps hands to elicit the response.
                                                             c. The newborn’s arms adduct while the
                                                                elbows flex.
                                                             d. The hands stay clenched.
                                                             e. The reflex should disappear within 4
                                                                months.
                                             7. Pull-to-sit response
                                                             a. Pull the newborn up by the wrist while
                                                                the newborn is in the supine position.
                                                             b. The head lags until the newborn is in an
                                                                upright position, and then the head is
                                                                level with the chest and shoulders
                                                                momentarily before falling forward.
                                                             c. The head then lifts for a few minutes.
                                                             d. The response depends on the
                                                                newborn’s general muscle tone and
                                                                condition and on maturity level.
                                             8. Babinski’s sign: Plantar reflex
                                                             a. Beginning at the heel of the foot, use a
                                                                finger to stroke gently upward along
                                                                the lateral aspect of the sole, and then
                                                                move the finger along the ball of the
                                                                foot.
                                                             b. The newborn’s toes hyperextend while
                                                                the big toe dorsiflexes.
                                                             c. The reflex disappears after the newborn
                                                                is 1 year old.
                                                             d. Absence of this reflex indicates the
                                                                need for a neurological examination.
                                             9. Stepping or walking
                                                             a. Hold the newborn in a vertical position,
                                                                allowing 1 foot to touch a table surface.
                                                             b. The newborn simulates walking,
                                                                alternately flexing and extending the
                                                                feet.
                                                             c. The reflex is usually present for 3 to 4
                                                                months.



                                                          823
   818   819   820   821   822   823   824   825   826   827   828