Pedia 3B - Applied Neurology - Primative Reflexes Flashcards
Reflex: Palmar Grasp Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Palmar Grasp Onset (AOG): 28w Fully Developed: 32w Duration/disappears: 2-3m Elicitation: Dr finger in baby's palm Normal: thumb locks onto finger tightly
Reflex: Plantar Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Plantar
Onset (AOG): 11w
Fully Developed:
Duration/disappears: 7-9m
Elicitation: Stimulate Metatarsal arch of foot
Normal: Ball of foot drops and “grasps” w/feet; ready to cruise
Reflex: Rooting Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Rooting
Onset (AOG): 32w
Fully Developed: 36w
Duration/disappears: Less prominent after 1m
Elicitation: Stroke cheek
Normal: Infant turns toward stimulus and makes sucking motions
Reflex: Moro Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Moro
Onset (AOG): 28-32w
Fully Developed: 37w
Duration/disappears: 5-6m
Elicitation: Sudden drop of head (rel. to trunk
Normal: Abduction+Ext of arms+Legs flexed –> Abduction and flexion, flexed fists and flexed flegs
Reflex: Tonic Neck Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Tonic Neck
Onset (AOG): 35w
Fully Developed: 1m
Duration/disappears: 6-7m
Elicitation: Head of a relaxed child, laying on back, is rotated to side
Normal: “Fencer stance”
Arm faced extends straight away from body w/hand partially open
Arm on far side - flexed and fist clenched
Reflex: Placing/Stepping Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Placing/Stepping
Onset (AOG): 37w
Fully Developed:
Duration/disappears: 4-5m; pt can creep/crawl
Elicitation: Stimulate dorsum of foot against table edge
Normal: Stepping/walking movement
Reflex: Parachute Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Parachute
Onset (AOG): 4-9 (7-8?)
Fully Developed: 10-11
Duration/disappears: Masked by voluntary (Remains?)
Elicitation: Hold child upright and rotate body forward by hips (as if falling fwd)
Normal: Arms ext as if to break fall
Reflex: Landau Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Landau Onset (AOG): 9-10m Fully Developed: Duration/disappears: Masked by voluntary action Elicitation: Hold in horizontal/prone position Normal: Superman pose Ext neck,head,arms Flex lower extremities
Reflex: Righting Onset (AOG): Fully Developed: Duration/disappears: Elicitation: Normal
Reflex: Righting
Onset (AOG): 4-8m
Fully Developed:
Duration/disappears: Masked by voluntary
Elicitation: Supine, turn head to one side (sequential manner)
Normal: Rotates shoulder, trunk then pelvis
Developmental Milestones: Gross
Runs
24m
Developmental Milestones: Gross
Walks upstairs w/assistance
18m
Developmental Milestones: Gross
Walks w/1 hand held
12m
Developmental Milestones: Gross
Pulls to stand
9m
Developmental Milestones: Gross
Sits momentarily
6m
Developmental Milestones: Gross
Supports weight on forearms
3m
Developmental Milestones: Fine Motor
Opens hands spontaneously
3m
Developmental Milestones: Fine Motor
Transfers objects
6m
Developmental Milestones: Fine Motor
Pincer grasp
9m
Developmental Milestones: Fine Motor
Releases object on command
12m
Developmental Milestones: Fine Motor
Feeds from a spoon
18m
Developmental Milestones: Fine Motor
Builds a tower of 6 blocks
24m
Developmental Milestones: Social skills
Smiles appropriately
3m
Developmental Milestones: Social skills
Social smile
2m
Developmental Milestones: Social skills
Shows likes/dislikes
6m
Developmental Milestones: Social skills
Plays peek-a-boo & pat-a-cake
9m
Developmental Milestones: Social skills
Comes when called
12m
Developmental Milestones: Social skills
Mimics actions of others
18m
Developmental Milestones: Social skills
Plays with others
24m
Developmental Milestones: Language
Coos/Laughs
3m
Developmental Milestones: Language
Babbles
6m
Developmental Milestones: Language
Imitates sounds
9m
Developmental Milestones: Language
1-2 meaningful words
12m
Developmental Milestones: Language
At least 6 words
18
Developmental Milestones: Language
2-3 word sentences
24m
Head circumference growth in PRETERM
1st week: 0.5cm
2nd week: 0.5cm
3rd week: 0.75cm
4th week+: 1cm/week until 40th
Head circumference growth in TERM
34-35 @Birth
44cm @6m
47cm @1y
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Depth- Elevated disc (Phyiologic Cup Obliterated)
Papilledema
Papillitis
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Depth- Shallow
Optic Atrophy
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Edge: Blurred
Papilledema
Papillitis
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Edge: Very sharp
Optic Atrophy
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Vessels - Engorged
Papilledema
Papillitis
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Vessels - Narrow/Few
Optic Atrophy
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Color - No Venous pulse
Papilledema
Papillitis
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Color - Hyperemic
Papilledema
Papillitis
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Color - Hemorrhages
Papilledema
Papillitis
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Vision - Good (or enlarged blind spot)
Papilledema
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Vision - Poor (or loss of central)
Papillitis
Optic Fundus: Papilledema, Papillitis, Optic Atrophy:
Vision - Reduced
Optic Atrophy
Visual acuity in an infant
20/150
Visual acuity reaches adult level of 20/20 at
6m
Dazzle Reflex:
Definition:
Present:
Note:
Involuntary avoidance response to a light shined in eyes
Present in 28week old PRE-mature infants
By 32w, eyes remain closed until light is removed
Blink Reflex:
Definition:
Present:
Note:
Fxn’l vision
Close when object moves to eye
(-) in newborn
(+) 3-4m (ALL by 1y/o, otherwise likely blind)
Turn eyes to sound by
7-8w
Turn head to sound by
3-4m
Weber
Defective ear =
Better ear =
Defective ear = Conductive HL
Better ear = Sensorineural HL
Rinne
- should be (AC vs BC)
- Bone > Air
- Air > Bone
- AC > BC
- Normal or
- Sensorineural HL
- AC < BC = Conductive HL
Muscle stretch:
Jaw Jerk
CN V
Muscle stretch:
Biceps
C5-6
Also in Brachio-radialis
Muscle stretch:
Triceps
C6-8
Muscle stretch:
Brachio-radialis
C5-6
Also in Biceps
Muscle stretch:
Patellar:
L2-L4
Muscle stretch:
Ankle
S1-2
Muscle stretch:
Asking patient to contract a muscle you are not testing
Jendrassik Maneuver
Superficial Reflexes: How/What
Umbilical migration test (Beevor’s)
Stroke quadrants of abdomen towards umbilicus –> Umbilicus moves towards orgin of stimulus
Tests for injury between T10-T12
Superficial Reflexes: How/What
Cremasteric Reflex
L1-L2
Stroke inner thigh towards testicle –> ipislateral testicle moves upward
Superficial Reflexes: How/What
Anal pucker
S4-5
Pricking the skin around anus –> Quick twitch-like constriction of sphincter
Superficial Reflexes: How/What
Ext Toe Sign -
Pyramidal tract function
- Normal up to 2 years old (“up to 2 1/2”)
Superficial Reflexes: How/What
Chaddock
Extensor toe sign - lateral side of foot
Superficial Reflexes: How/What
Schaeffer
Ext toe sign - Squeeze hard on achillies
Superficial Reflexes: How/What
Oppenheim
Ext toe sign - Squeeze calf muscles
Superficial Reflexes: How/What
Bing
Ext toe sign - multiple light pinpricks on dorso-lateral surface of foot
Abnormal movements:
Incessant, random, moderately quick movements
“Milkmaids”
Chorea
Abnormal movements:
Slow, writhing movements of fingers or extremities
Athetosis
Abnormal movements:
Prolonged, strong contraction + relaxation of agonists and antagonists
Dystonia
Abnormal movements:
Quick, stereotyped movements of face, tongue or extremities
Tics
Abnormal movements:
Hand turns to palm outward as arms are raised over head
Pronator sign
Abnormal movements:
Child should maintain flexed legs at right angles at knee
Barre sign
Reflex: Plantar
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Plantar
Onset (AOG): 11
Fully Dev:
Duration/Disappears: 7-9m
Reflex: Palmar
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Palmar
Onset (AOG): 28w
Fully Dev: 32w
Duration/Disappears: 2-3m
Reflex: Rooting
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Rooting
Onset (AOG): 32w
Fully Dev: 36w
Duration/Disappears: Less prominent after 1m
Reflex: Moro
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Moro
Onset (AOG): 28-32w
Fully Dev: 37w
Duration/Disappears: 5-6m (?)
Reflex: Tonic Neck
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Tonic neck
Onset (AOG): 35
Fully Dev: 1m
Duration/Disappears: 6-7m
Reflex: Placing/Stepping
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: 37w
Onset (AOG):
Fully Dev:
Duration/Disappears: 4-5m; Pt can creep and crawl
Reflex: Parachute
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Parachute
Onset (AOG): 7-8m
Fully Dev: 10-11m
Duration/Disappears: Persists throughout life
Reflex: Landau “Superman”
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Landau “Superman”
Onset (AOG): 9-10m
Fully Dev:
Duration/Disappears: Covered up by voluntary
Reflex: Parachute
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Parachute
Onset (AOG): 4-9m
Fully Dev:
Duration/Disappears: Covered up by voluntary
Reflex: Righting
Onset (AOG):
Fully Dev:
Duration/Disappears:
Reflex: Righting
Onset (AOG): 4-8m
Fully Dev:
Duration/Disappears: Covered up by voluntary
Sensory Examination: Level of Involvement
Back of head
C2
Sensory Examination: Level of Involvement
Shoulders
C4
Sensory Examination: Level of Involvement
Thumbs
C6
Sensory Examination: Level of Involvement
Nipple line
T4
Sensory Examination: Level of Involvement
Umbilicus
T10
Sensory Examination: Level of Involvement
Inguinal sign
L1
Sensory Examination: Level of Involvement
Big toe
L5
Sensory Examination: Level of Involvement
Small toe
S1
Sensory Examination: Level of Involvement
Posterior thigh
S2
Meningeal signs:
(+) Resistanceto flexion
(-) Resistance to extension
Inflammation in dura
Nuchal rigidity/catch
Protective reflex prevents stretching/lengthening
Meningeal signs:
Bent-knee
Straight-knee-leg raising test
Neck bends to prevent stretching
Kernig
Meningeal signs:
ADduction and flexion of legs as you attempt to flex the kneck –> ?
Brudzinski
–> knees go up to prevent stretching
Scarf sign tests
If elbow passes midline –> HYPO-tonia