Development Flashcards
18 month old who wakes up screaming, inconsolable, parents at loss of what to do. Does not recall events.
A. Reassure
B. EEG
C. MRI
D. Refer to psych
A. Reassure
The mother of a 3.5 y.o girl is concerned about her speech. She said her first words at 11 months and is speaking in 3 word sentences. There are no concerns with her development. She has begun to have difficulty with speaking. She will repeat the same word (mommy, mommy, mommy) and repeat sounds at the start of words (m-m-m-mommy), pause during speak and insert “uh” in the middle of a sentence. She has associated facial twitches and blinking. What do you recommend ?
A. Reassure B. Follow up in 6 months C. Refer to SLP D. Development assessment E. Audiology
C. Refer to SLP
3 year old male is brought to you because the mother has concerns about his language. He guides mom’s hand to things that he wants , has 18 single words, and can follow 2 step commands. His fine motor and gross motor development is normal. What is this most consistent with ?
A. Expressive language delay
B. Receptive language delay
C. Normal variant
D. Autism spectrum disorder
D. Autism spectrum disorder
A 4 month old presents with a narrow elongated head and frontal bossing. What suture is most likely fused ?
A. Metopic
B. Sagittal
C. Lambdoid
D. Coronal
B. Sagittal
-scaphocephaly (dolichocephaly)
Father worried about size of penis of otherwise healthy 4kg newborn. Penis measure stretched out 3cm. What do you do ?
A. Dose of 17-OH progesterone
B. CGH
C. Reassure
D. DSD
C. Reassure
Female with autism. Best test to detect underlying diagnosis?
A. Microarray
B. Fragile X testing
A. Microarray
Toddler with episodes where she doesn’t get her way, cries/throws tantrum, then loses consciousness and sometimes turns blue. These episodes are increasing in frequency. What do you recommend ?
A. Ignore the behaviour and put her in timeout after the episode
B. Refer for behavioural therapy
C. Put her in a time-put before behaviour has a chance to escalate
D. Give in to what she wants
C. Put her in time-our before behaviour has a chance to escalate
9 year old girl, parents divorced. How does she handle it ?
A. Blames herself
B. ?
C. ?
D. Chooses one parent and takes their side
D. Chooses one parent and takes their side
About a 9 year old whose parents are getting a divorce and they ask what type of behaviour she will exhibit:
A. Developmental regression
B. Pick sides (mother vs father) and blame the other parent
C. Try to make everyone happy
D. Blame herself for the divorce
B. Pick sides (mother vs father) and blame the other parent
13 y.o boy breaking things at home, not listening to instructions, and skipping school. He seems angry. What is the next BEST step ?
A. Parent training
B. Start an atypical antipsychotic
C. Start an SSRI
A. Parent training
Management of ODD
Treatment often combo of:
- Parent- Management Training Programs and Family Therapy
- Cognitive Problem- Solving skills training
- social- Skills programs and school- based programs
- medication
Two year old child is brought in by her parents for concerning behaviour. Cries and screams when she is not able to get what she wants and sometimes these episodes are associated with her turning blue and having jerking movements (breath holding spell). Parents what to know what to do about these episodes ?
A. Ignore the behaviour, then put the child in a time out afterwards
B. Interrupt the behaviour with a time out before it escalates
C. Give the child what they want to avoid the behaviour
B. Interrupt the behaviour with a time out before it escalates.
Marked as controversial likely with
A. Ignore the behaviour, then put the child in a time out
11 y.o boy who has never been dry at night. Father had nocturnal enuresis until age 10. Having difficulty and not able to spend time at his friends’ houses for sleepovers. What is the best advice regarding management ?
A. Alarm
B. Imipramine
C. DDAVP
D. Oxybutynin
A. Alarm
Boy with stable ADHD has been on a stable dose of stimulant for the last two years. Had started to become very aggressive when spoken to and gets easily frustrated when he doesn’t get what he wants. You’ve already ruled out psychosocial stressors. What do you want to do as your next step ?
A. Benzo PRN
B. Increase psychostimulatn
C. Add SSRI
D. Add atypical antipsychotic
B. Increase psychostimulant
Why ? Need to find source
16 y.o boy with history of ADHD on Vyvanse. His mother notes him becoming more withdrawn and secretive over the past year, wanting to spend all of his time in his room and away from friends and family, on his computer. She has also noted money missing from her purse and strange charges on her credit card from an unknown source. What should you do ?
A. Increase his medication dosage
B. Assess him for gambling problems
C. Add a mood stabilizer
D. Reassure
B. Assess him for a gambling problem
A mother brings in her baby with concerns about his head shape. This is what the head looks like. Photo. What is the most likely diagnosis ?
Description of photo, flattened posterior head on right with right ear forward and flattening of forehead on other side
A. Positional plagiocephaly
B. Lambdoid craniosynostosis
C. Dolicocephaly
D. Scaphocephaly
A. Positional plagiocephaly
What is the minimum requirement to sit in a car with a seatbelt and no car seat ?
A. 135cm
B. 145 cm
C. 150cm
D. 155cm
B. 145 cm
Needs to be 8y.o and 36kg
15 month old is seen in your office. What would make you the most concerned ?
A. Not pointing to show interest
B. No words and part of bilingual family
C. Cannot scribble with a crayon
Answer A: not pointing to show interest - concern for ASD/no reciprocity
A 3 year old boy is in your office. He is very energetic, aggressive and destructive. His height is on the 50th percentile and his weight on the 95th percentile. He is described as having a voracious appetite. He comes to see you and hugs you. He speaks in 1 word sentences. What is the diagnosis ?
A. Emotional deprivation
B. Diencephalic syndrome
C. Prader Willi syndrome
D. ADHD
A. Emotional deprivation
For emotional deprivation they can be fat if the parents are over feeding them.
B. Diencephalic syndrome also causes FTT but emaciation
C- prader willi would not be hugging
D- ADHD does not make you fat/voracious appetite
A 10 year old boy with previously repaired TAPVD comes to your office with symptoms of ADHD. He is on no medications currently and has been well. Your next best step is:
A. Start stimulants
B. ECG
C. Refer to psychiatry
D. Continue to monitor
A. Start stimulants
Which of the following would be the most helpful in confirming the diagnosis of ADHD in a 12 y.o male.
A. Symptoms are only at school
B. Difficulty making friends
C. Forgets his homework at school
D. Spends a lot of time playing video games
C. Forgets his homework at school
Child with I towing and difficulty walking. What would make you suspicious that this is spastic dialectic CP ?
A. Prematurity, global development delay, normal reflexes
B. Prematurity, delayed motor milestones, increased reflexes
C. Birth asphyxia, global development delay, normal reflexes
D. Birth asphyxia, delayed motor milestones, increased reflexes
B. Prematurity, delayed motor milestones, increased reflexes
A 10 month old baby wakes up every 2 hours and needs to be rocked back to seep by his mom. What is the most likely cause ?
A. Benign Rolandic epilepsy
B. Sleep onset association disorder
C. Night terrors
B. Sleep onset association disorder
36 month baby what is best predictor of cognition ?
A. Gross motor
B. Fine motor
C. Social
D. Language
Answer: D language
Language is linked to both cognition and emotional development. Language delays may be the first indication that a child has mental retardation, has an ASD, or has been maltreated
You suspect a 3 y.o female of having autism spectrum disorder. What diagnostic test would MOST likely reveal an abnormality ?
A. Karyotype
B. Very long chain fatty acids
C. Fragile x testing
D. Chromosomal microarray
D. Chromosomal microarray
They suggest that all children with ASD receive chromosomal microarray and fragile X testing
What is the best way for a 7 year old to ride in the back of a car, in the middle seat with no head rest? (Pictures shown taken from CPS statement)
A. Forward facing car seat
B. Booster seat with no back
C. Booster seat with a full back
D. Seat belt
C. Booster seat with a full back
Stage 1 (rear facing) - until at least 1 year and 10kg (22lbs) Stage 2 (forward facing) - until at least 18kg (40lbs) Stage 3 (booster) - until at least 8 years old, 36kg (80lbs) and 145cm (4ft 9 inches) Stage 4 (seatbelt)
Weight order is 10kg/20lbs - 20kg/40lbs - 40kg/80lbs
Full/high back booster - provide neck support and should be used for seats without a head restraint.
A mom brings in her son for concerns around his school performance, but feels he is cognitively normal. He has trouble with reading, and has trouble understanding when he reads to himself. His teacher has been spending more resource time with him, and when she reads aloud to him, he understands well. What is the most likely diagnosis ?
A. Myopia
B. Dyslexia
C. General learning disorder
D. Speech apraxia
B. Dyslexia - most common LD - causes bu deficits in phonological processing (inability to segment words into smaller units). Deficits are unexpected in relation to the students overall intelligence
A. Myopia - unlikely as they aren’t mentioning visual deficits in any other area
C. General learning disorder -
Unlikely as they aren’t mentioning any other deficits
D. Speech apraxia - impairment in the ability to organize and initiate a motor pattern of speech (ie; problems making sounds, syllables and words - not because of muscle weakness but because the brain has trouble moving the body parts necessary for speech.)
8 y.o boy is brought to you because of “difficulties learning “. He has difficulties finding words and with some pronounounciation. He does not comprehend what he reads. However he understands when his parents read to him. What is the most likely diagnosis ?
A. Aspergers
B. Specific language impairment
C. Verbal apraxia
D. Dyslexia
D. Dyslexia
Boy with new diagnosis of ADHD and uses drugs. What ADHD meds to prescribe ?
A. Vyvanse
B. Amphetamine slow release (Ritalin)
C. Dextroamphetamine
Or
Kid with Hx of substance abuse. Needs medication for ADHD. Which is BEST option ?
A. Vyvanse
B. Methylphenidate IR
C. Guanfacine
D. Ritalin SR
A. Vyvanse
In a 15 month old infant, which of the following is the most indicative of an autism spectrum disorder ?
A. Not babbling frequently
B. Not pointing to indicate interest
B. Not pointing to indicate interest
What is the first line intervention for sleep onset association type sleep disorder ?
A. Melatonin
B. Stable bedtime routine
C. Clonidine
B. Stable bedtime routine
Parents are concerned about a child’s performance at school. He has normal intellect. He is very clumsy and teachers mention that he has poor handwriting. He has difficulty hopping on one foot and seems to tire easily. He has normal strength on exam but low tone. Diagnosis is most likely ?
A. Duchenne’s muscular dystrophy
B. Cerebral palsy
C. Developmental coordination disorder
C. Developmental coordination disorder - aka clumsy child
A 4 year old girl is referred to you for dysfluency. She grimaces when she stutters. What do you do ?
A. Refer to SLP
B. Reassure
C. MRI head
A. Refer to SLP
If the child is grimacing they are upset about it - probably not just developmental dysfluency of preschool children
A child is referred to you for assessment of a learning disability. What did you do ?
A. Refer for psychoeducation testing
A refer for psychoeducation testing
A teenage boy with addiction issues is diagnosed with ADHD. His mother is concerned about the potential for abuse with some ADHD medications. Which stimulant do you start him on ?
A. Concerta XR
B. Ritalin
C. Vyvanse
C. Vyvanse - because of its pro- drug design, it’s delivery curve is not changed by mode of administration (oral, inhalation or injection), reducing its possible abuse potential, linger effect
A. Concerta - the abuse potential is significantly reduced in comparison to short- acting medication due to the product formulation according to anecdotal reports from Canadian regional addiction Centers.
3 year old female, picky eater. Since 8 months of age, weight 15th percentile. Physical exam normal. Difficulties at mealtime specifically. Best option ?
A. Allow kid to choose food
B. Introduce child’s choice plus what family eats at mealtimes
C. Cyproheptadine
D. Offer several small snacks throughout the day plus mealtimes
B. Introduce child’s choice plus whatever family eats at mealtimes
In a 5 month old boy, which would be the most concerning ?
A. Doesn’t turn to the sound of his own name
B. Doesn’t sit upright without support
C. Fisting of one of his hands
D. Doesn’t smile all the time at his caregiver
Answer C. Fisting - Extreme handedness at an early age and perisistence of fisting after 4 months is another indicator of potential neuronal migration disorders requiring imaging ie; CP
Sound of name - 10 months
Sits upright - 6 months
Smiling - 6 weeks, but doesn’t have to smile all the time !!
The mother of a 2.5 y.o girl is concerned about her speech. She said her frost words at the age of 11 months and is speaking in 3 word sentences. There are no concerns with her development. She has begun to have difficulty with speaking. She will repeat the same word (mommy, mommy,mommy), repeat sounds at the start of words (m-m-m-mommy), pause during speech, and insert ‘uh’ in the middle of a sentence. What do you recommend ?
A. Audiology
B. Full developmental assessment
C. Reassure
D. Refer to speech language pathologist
D. Refer to SLP
- not this version had no grimacing but you still refer because of parental concern
3 year old girl with developmental regression and small head. What is diagnosis ?
Rett syndrome
Boy with enuresis, what is a good non pharm way to treat it ?
A. Positive reinforcement
B. Bed alarm
C. DDAVP
D. Bladder training
B. Bed alarm
18 month old won’t go to sleep, used to be breastfed at 12 months. What does he have ?
A. Sleep onset association disorder
B. Nightmare
C. Night terror
D. Delayed sleep phase
A. Sleep onset association disorder
Child with expressive language delay and otherwise makes 12 point piece puzzle, social. Most likely associated with ?
A. Reading difficulty
B. Autism
Answer: A reading difficulty
2.5 y.o girl who stutters. What would make you most concerned ?
A. Repeats whole word
B. Repeats part of word
C. Facial grimacing
D. Pauses between words
C. Facial grimacing
This makes us more concerned that the child is anxious or upset but the stuttering, prompting quick referral to SLP
12 y.o boy with school difficulties. Teacher thinks he has a learning disability. Your history and physical exam are negative. What would you do ?
A. CBC, lead levels, TSH
B. Start stimulant
C. Send to psychology
D. Assess short term memory and fine motor skills
C. Send to psychology - the child with a suspected LD needs a psychoeducational assessment
18 month old wakes up throughout the night, needs parents to console. Ends up sleeping in parents bed.
A. Sleep wake transition disorder
B. Sleep onset association disorder
C. Night terror
D. Nightmares
Answer B: sleep onset association disorder
9 month old with asymmetric tonic neck reflex. Cause ?
A. CP
B. Normal
A. CP
ATNR appears at 35 weeks and is gone by 4 months
4y.o girl with night terrors every night at midnight. What do you advise the parents ?
A. Reassure the parents
B. Wake up kid 15min before for half hour
B. Wake up kid 15 min before for half hour - since this is every night at same time
What do you tell mom of an ADHD kid on stimulant medication ?
A. It will decrease the risk of drugs dependency
A. No other choice :)
Compared to those without ADHD, children with ADHD have a higher risk of substance abuse. However, children with ADHD who are treated with medication have a lower risk of substance abuse that children with ADHD who are not treated.
A mother brings her 6 y.o son to your office with concerns that he has always been ‘awkward’. His teacher has commented on poor writing. On exam, he has normal power, low muscle tone and is unable to hop. Most likely diagnosis ?
A. Developmental coordination disorder
B. Cerebral palsy
C. Muscular dystrophy
D. Tourette syndrome
A. Developmental coordination disorder
18 month old child falls asleep with his dad rocking him to sleep. However, he wakes up screaming multiple times per night. He will go back to sleep of calmed down, but often in his parents bed. He was breastfed to sleep for the first 12months. What is the issue?
A. Sleep- wake- transition disorder
B. Sleep association disorder
C. Night terrors
B. Sleep association disorder
3.5 year old girl was referred to you for assessment. She speaks 50 words and 50% of her words are intelligible to others. She points to things she wants. She can run well, can kick a ball. She can can walk up and down stairs. She cannot throw a ball overhead. She can use a spoon. What is the MOST likely explanation of her symptoms ?
A. Hearing deficit
B. Developmental delay
C. Language delay
Answer:
I think this answer is C. Language delay
Af what weight and age can a child start to use a front facing car seat ?
A. 9kg, 9 mo
B. 10kg, 12 mo
C. 18kg, 20mo
B. 10kg,12 mo
A 14 y.o boy with ADHD is taking 36mg of concerta. His symptoms and school performance have improved and his mother is happy with his improvements. For the past two weeks, however, he has been sad, often crying unpredictably. He also is having difficulty falling asleep at night. What is the next best step in his management ?
A. Decrease the dose of concerta
B. Change from concerta to adderrall
C. Add fluoxetine
D. Add melatonin
OR
Child who you are following for ADHD, and started treatment 2 weeks ago. Mom tells you he has done really well at school, and his grades started to improve. Side effects of difficulty sleeping, sad, moments, moody, poor appetite. His current dose of medication is Concerta 36mg x 7 days. What did you do?
A. Decrease concerta dose to 27mg
B. Add fluoxetine
C. Add melatonin
D. Change to Adderall
Answer: A/A - reduce dose
- concerta is 8- 12h and used in older kids and Adderall XR is shorter acting at 6-8h so It’s not longer acting !! Would worsen symptoms
- mood lability is one of the side effects of stimulants
- if mood lability occurs at the time of peak concentration, can start by reducing the dose or switching to a longer acting preperation.
- irritability, sadness and increased activity as the medication wears off is common when using short acting medication on a morning/noon (twice a day schedule) and in this case adding an afternoon dose or switching to a long-acting form can be tried.
- should also screen for coexisting mood disorder/anxiety disorder
- insomnia - establish a bedtime routine and good sleep hygiene habits; omit or reduce the last dose of the day.
- fluoxetine
Side effects of stimulants: decreased appetite, poor growth, dizziness, mood lability, insomnia, rebound when med wears off, tics , psychosis, diversion/misuse
4 year old with various developmental descriptions (stacks 7 cubes, 1 step at a time, 3word sentences). What is their developmental age?
A. 24months
B. 30months
C.33 months
D. 35 months
Answer A. 24 months
Stacks: 6-7 cubes = 2 years
1step at a time = 2years
2-3 word sentences = 2 years
A mom comes to see you about her 2 year old, previously well child. The child is having daily episodes where her trunk is writhing, and she becomes flushed and diaphoretic. She also grunts, and breathes rapidly during these episodes. Mom is sure she does not lose consciousness and if she talks to her daughter, she can shorten the duration of the worrisome. They happen when the child is in her car seat or watching tv. What is your next step ?
A. Refer to neurology for an EEG
B. Upper GI to rule out reflux
C. Reassure mom
D. Refer to a psychologist
C. Reassure mom
Masturbation
18 month old wakes up 1-2h after going to bed, screaming, difficult to arouse, is confused and diaphoretic. Likely cause ?
A. Nightmares
B. Night terrors
C. Seizures
OR
Child has recurrent episodes of sudden crying, frightening episodes, unaware. Diagnosis?
A. Night terrors
B. Nightmares
Answer B/A
Question about child with isolated language delay- what are they at risk for in the future ?
A. Reading disability/dyslexia
At what age should a child be able to self- soothe when he awakens at night ?
A. 5-7months
B. 8-10months
C. 11-13 months
D. 14-17 months
A. 5-7months
- sleep regulation or self- soothing involves the infants ability to negotiate the sleep-wake transition, both at sleep onset and following norms awakenings throughout the night.
- the capacity to self soothe begins to develop in the first 12 weeks of life and is a reflection of both Neuro developmental maturation and learning.
- it is important to recommend that parents put their 2-4month old infants to bed “drowsy but awake” to avoid dependence on parental presence at sleep onset and to foster the infants ability to self- soothe.
5 year old with 21 y.o old single mom. Teacher says she is hyperactive, hoarding food and not remorseful for inappropriate behaviour. No eye contact with mom, but runs up and hugs you. Most likely diagnosis?
A. ADHD
B. Autism
C. Attachment disorder
D. Oppositional defiant disorder
C. Attachment disorder
30 month old child has been introduced to potty training. She has been encouraged to sit on potty after meals whether she can void or not. She has been doing it for one week. Now she is having temper tantrums every time you get her near the toilet. What is your advice on management ?
A. Continue with current toilet training
B. Stop for 1-3months and try again later
C. Punish her
D. Give treat every time she can sit on toilet quietly
B. Stop for 1-3 months and try again later
How to diagnose expressive language delay in a 2.5 y.o ?
A less than 100 words
B. No 2 word combinations
B. No 2word combinations
- receptive language refers to ability to understand and expressive language to produce symbolic communication
14 month old says specifically “dada” only. What other features makes you worried about language delay ?
A. Not responding to own name
B. Not babbling
A. Not responding to own name
- start to respond to name at 5months and orients well to name by 9 months
- babbling should have already stopped by 14 months so this wouldn’t be concerning
Nelson’s- at 9-10months - babbling becomes truncated into specific words (ie: mama or dada for their parents
Whom you would refer to speech and language therapy?
A. 18 month old with no single word
B. 6y.o with phoneme problem
C. 3year old with 3 word sentences
D. 4 y.o with dysfluency
Or
Who to refer to SLP?
A. 6 year old with trouble with phonemes
B. No words by 18 months, in a bilingual household
C. 2 year old, people only understand 50%
Answer A/B - 18 month old with no words
- refer for 15 month old without 3 words, so 18 month old with no words should be referred
- 3 year old should speak in 3 word sentences
- 2 y.o should only be 50% intelligible
- 4 y.o dysfluency - depends on if stuttering present and in what capacity
- 6y.o with phoneme problems - should also probably have assistance but it wouldn’t necessarily be through an SLP
3.5 year old, follows 2-step commands, interested in communication, developmentally appropriate girl with 50% intelligible speech and repeats syllables and whole words. Most likely diagnosis ?
A. Developmental dysfluency
B. Normal development
C. Delayed expressive language skills
D. Delayed receptive language skills
Answer C. Delayed Expressive language skills - yes as should have 75% intelligible speech - answer given
Or why not ? (Me)
A- developmental dysfluency -yes repeats words and syllables
Other
B- no not normal development
D- delayed receptive language skills - at 3 should follow 3-step commands but red flags only note to refer if not following 2-step commands by this time
Mom comes in wondering if her 2 year old is ready for toilet training. Of the following, which is most likely to show readiness ?
A. Child motivated to please parents
B. Child able to follow two-step commands
C. Child has at least a 100 word vocabulary
OR
Signs of toilet readiness?
A. Able to dress and undress himself ?
B. Desire to please based on positive relationship with parents
C. Can stay dry overnight
D. Can communicate need for toilet use using full sentences
Answer. A/B - desire to please
Just need to be able to follow one step command.
Teenage girl with severe ADHD. Started in Concerta 36mg. Medicine is working great for her ADHD, but on follow-up notes to have lost 10 pounds. What would you do ?
A. Switch to straterra
B. Decrease concerta to 5days/week from 7 days/week
Or
Teen with ADHD, 14 pound weight loss. Currently ADHD is better controlled on his long-acting ADHD med. what is best thing to do ?
A. Start Strattera
B. Consult a psychiatrist
C. Change from 7 days a week dosing to 5 days a week
Or
10 y.o girl with ADHD on Concerta 35mg comes after 3 months with 4kg weight loss. What do you do ?
A. Decrease concerta to 5 times a week
B. Change to straterra
Answer: B,C,A - decrease to 5x week
-concerta - extended release methylphenidate- s/e are moderate appetite suppression, mild sleep disturbances, transient weight loss, irritability, emergence of tics
Lowest dose: 18mg, 27mg, 36mg, and 54mg
Strattera - extended release atomoxetine “An atom in the stratosphere” - s/e nervousness, sleep problems, fatigue, stomach upset. Dizziness, dry moth. Can lead in rare cases to severe liver injury or to suicidal ideation
5 y.o boy is having difficulties with bad behaviour at school, including stealing objects. His parents have recently divorced and are having difficulties in their relationship. His mother would like advice on how to help with his behaviour. Best advice ?
A. Take parenting classes and learn way to manage his behaviour
B. You need to meet with both parents together to better assess the situation
C. She needs to start discipline her child ASAP
Or
Marital troubles at home, child is acting out at school and daycare. Mom has come in for advice.
A. Give the mom parenting classes
B. Request a meeting with both parents to assess the home situation
C. Give him Ritalin
Answer: B - meet both parents
Divorcing parents. What’s best for the kid ?
A. Best if joint custody could be given ASAP
B. Best of child gets to see both parents (ie; joint custody ) even if the parents are fighting all the time
C. Best if parents can settle their differences and not fight in front of kids
C. Not fight in front of kids
2.5 year old who is not combining 2-words, has about a 50 word vocabulary and other people understand about 25%. Otherwise, climbs stairs, runs around, throws underhand. Interested in other people. What is this most consistent with ?
A. Isolated language delay
B. Global developmental delay
C. Autism
A. Isolated language delay
57 pound (26kg) child. What car seat should you use ?
A. Lap and shoulder belt with seat
B. Seat with built in restraint
C. Lap and shoulder belt, no airbag
D. Lap and shoulder belt, with airbag
A. Lap and shoulder belt with seat
An 18kg child is being transported in a car. Which of the following is the best restraint?
A. Car’s lap and shoulder belt
B. Car seat with its own restraining device
C. Car seat with the car’s restraining device
C. Car seat with the car’s restraining device