Infancy Child Development and Health Promotion

Vocabulary flashcards covering developmental stages, physical growth parameters, primitive reflexes, motor and language milestones, psychosocial theories, play categories, and health promotion guidelines in infancy.

Neonate

The developmental stage spanning from birth through $27$ to $28\,\text{days}$ of life.

Infant Stage

The developmental period ranging from $1\,\text{month}$ to approximately $12\,\text{months}$ of age.

Toddler Stage

The early childhood developmental stage spanning from $1$ to $3\,\text{years}$ of age.

Preschool Stage

The early childhood developmental period spanning from $3$ to $6\,\text{years}$ of age.

School-Age Stage

The middle childhood developmental period spanning from $6$ to $12\,\text{years}$ of age.

Adolescence Stage

The later childhood developmental stage spanning from $11$ to $20\,\text{years}$ of age, which by definition overlaps the end of school-age.

Weeks of Prematurity Formula

The formula used to calculate gestational prematurity: $\text{Weeks of Prematurity} = 40 - \text{gestational age at birth in weeks}$

Corrected Age Formula

The age adjustment calculation for premature infants: $\text{Corrected Age} = \text{chronological age} - \text{weeks of prematurity}$

Prematurity Catch-Up Period Formula

The calculated timeframe in weeks needed for developmental catch-up: $\text{Catch-Up Period in weeks} = \text{weeks premature} \times 10$

Infant Weight Gain Milestones

Physical growth expectations in which an infant doubles their birth weight by approximately $5\,\text{months}$ and triples it by $12\,\text{months}$ of age.

Infant Length Growth Milestone

A physical growth expectation where an infant's length increases by $50\%$ by $1\,\text{year}$ of age.

Infant Head Circumference Milestones

Growth proportions where occipitofrontal circumference (OFC) equals chest circumference plus $2\,\text{cm}$ at birth, and head circumference equals chest circumference at $1\,\text{year}$ of age.

Anterior Fontanel Closure

The physiological closure of the anterior skull soft spot, occurring between $12$ and $18\,\text{months}$ of age.

Posterior Fontanel Closure

The physiological closure of the posterior skull soft spot, occurring between $6$ and $8\,\text{weeks}$ of age.

Sucking Reflex

A primitive reflex present from birth to $4\,\text{months}$ where the infant initiates sucking upon stimulation of the circumoral area.

Rooting Reflex

A primitive reflex present from birth to $4\,\text{months}$ where the infant turns their head toward the side and sucks when their cheek is stroked.

Extrusion Reflex

A primitive reflex present from birth to $4\,\text{months}$ where the infant forces their tongue outward when touched.

Palmar Grasp Reflex

A primitive reflex present from birth to $4\,\text{months}$ where the infant spontaneously grasps an object placed in their palm.

Plantar Grasp Reflex

A primitive reflex present from birth to $8\,\text{months}$ where the infant's toes curl downward when the sole of the foot is touched.

Babinski Reflex

A primitive reflex present from birth to $12\,\text{months}$ where the big toe dorsiflexes upward and the other toes fan out upon stroking the sole of the foot.

Moro Reflex

A primitive startle reflex present from birth to $4\,\text{months}$ where an infant extends and then pulls in their arms and legs in response to a loud noise.

Physiologic Anemia of Infancy

A normal hematopoietic decrease in red blood cell count during early infancy due to reduced erythropoiesis as fetal hemoglobin declines.

Respiratory Sinus Arrhythmia

A normal cardiovascular variation common in infants where the heart rate fluctuates in pattern with breathing.

Mottling

An integumentary lacy pattern of skin discoloration caused by circulatory immaturity that decreases over the first few months of life.

Tooth Eruption Timeline

The dentition timeline where the first primary tooth erupts at an average age of $8\,\text{months}$ (range $6$–$10\,\text{months}$), progressing to $6$–$8\,\text{teeth}$ by $12\,\text{months}$.

Head Lag Resolution

A gross motor milestone expected at $4\,\text{months}$ of age when an infant displays no head lag when pulled to a sitting position.

Tripod Sitting

A gross motor milestone achieved at $6\,\text{months}$ where the infant sits supported while leaning forward on their hands.

Gross Motor 9-Month Milestones

Motor milestones at $9\,\text{months}$ including sitting unsupported and getting into a sitting position independently.

Cruising

A gross motor milestone reached at $12\,\text{months}$ where an infant walks while holding onto furniture or other stationary objects.

Gross Pincer Grasp

A fine motor milestone achieved at $9\,\text{months}$ where the infant uses a raking or inferior pincer grasp to pick up objects.

Fine Pincer Grasp

A fine motor milestone achieved at $12\,\text{months}$ where the infant precisely picks up small items using the tips of the index finger and thumb.

Sensorimotor Stage

Jean Piaget's cognitive stage spanning from birth to $2\,\text{years}$, where infants learn about the world through sensory experiences and motor activities.

Object Permanence

A cognitive developmental milestone emerging around $8\,\text{months}$ of age in which an infant understands that objects continue to exist even when out of sight.

Cooing

A language milestone occurring at $2\,\text{months}$ characterized by soft vowel sounds and differential crying.

Trust vs. Mistrust

Erik Erikson's psychosocial stage during infancy (birth to $1\,\text{year}$), where infants form foundational trust when their basic needs are consistently met by caregivers.

Stranger Anxiety

A normal social-emotional milestone emerging around $6$ to $9\,\text{months}$ where an infant demonstrates caution or distress around unfamiliar people.

Separation Anxiety

A normal social-emotional response emerging between $6$ and $12\,\text{months}$ where an infant experiences distress when separated from primary caregivers, typically resolving by $3\,\text{years}$ of age.

Reactive Attachment Disorder

A severe psychological disorder resulting from maladaptive, severe neglect, or absent emotional attachment during early infant caregiving.

Onlooker Play

A play style observed in infants aged $0$ to $3\,\text{months}$ characterized by watching faces, visual movements, and nearby environment.

Solitary Play

An independent play style characteristic of infants aged $3$ to $6\,\text{months}$, using items like rattles or high-contrast books.

Purposeful Play

A play developmental stage seen in infants aged $10$ to $12\,\text{months}$ involving structured actions like stacking blocks or using push and pull toys.

Infant Vitamin D Supplementation

A clinical nutritional guideline advising daily Vitamin D supplementation starting within the first few days of life for exclusively or partially breastfed infants.

Infant Iron Supplementation

A clinical guideline recommending iron supplementation starting at $4\,\text{months}$ of age for exclusively breastfed infants.

Introduction of Solids

The nutritional transition recommended at approximately $6\,\text{months}$ of age, serving as complementary feeding alongside breast milk or formula.

Infant Fluoridated Toothpaste Guidance

AAPD oral care guidance specifying the use of a 'smear' or rice-sized amount of fluoridated toothpaste for children under $2\,\text{years}$ of age once teeth erupt.

ABC of Safe Sleep

A mnemonic summarizing evidence-based SIDS prevention: placing infants Alone, on their Back, and in a Crib.

Sudden Unexpected Infant Death (SUID)

An overarching term for non-premeditated infant deaths under $1\,\text{year}$ of age, including SIDS, ill-defined causes, and accidental suffocation or strangulation in bed.

Colic

A diagnosis of exclusion defined as inconsolable crying lasting more than $3\,\text{hours/day}$ without physical cause, typically worse in the evening and resolving by $3\,\text{months}$ of age.

Infant Spitting Up Management

Interventions for normal regurgitation, including smaller and more frequent feedings, burping $2$ to $3\,\text{times}$ per feed, and keeping the infant upright for $30\,\text{minutes}$ post-feeding.

Teething Pain Relief

Non-pharmacological and pharmacological measures for teething discomfort, including chilled teething rings, cold washcloths, or occasional acetaminophen/ibuprofen (if $> 6\,\text{months}$ old), while avoiding OTC benzocaine.