Infant growth and development Age 1 month to 1 Year Physical growth and development: A. General characteristics : The best indication of good overall health in an infant is steadily increasing height , weight and head and circumference . Height and weight changes : Normal height change include : growth of 1\2 to 3\4 inch ( 1.3-1.9cm), increase of 50% over birth length by age 12 months. Normal weight changes include: A .Gain of (140 to 2oo g) per week b. Doubling of birth weight by age 6 months c. Tripling of birth weight by age 12 months. Head and chest circumference changes: 1.At birth, normal head circumference is about 13-14 inches(33-35cm) , normal chest circumference equalizes during the first year after birth.. 2.Head and chest circumference equalize during the first year after birth. 3.After age 2 years , chest circumference increases substantially more than head circumference. 4.Normal head circumference changes include: a. Increase of 1\2 inch(1.3cm) per month between ages 1 to 6 months b. Increase of 1\4 inch ( 0.64cm) per month between ages 7 t0 12 months. 5.Normal chest circumference changes include: a. Smaller than head circumference at birth. b. Equal to head circumference at age 12 months ,then becoming significantly large in subsequent years. 5.Cranial suture changes a. The posterior fontanel measures 1x1 cm at birth and normally closes by age 2 months. b. The anterior fontanel measures 3.5x3.5 cm at birth and normally closes by age 18 months. Social development: Play : A .play is the infant's work , it facilitates learning , the infant learns about the environment through the senses of touch, taste, hearing, smell and sight .an infant's play is basically solitary . Language: A .During infancy, language development begins. b. Crying represents the infant's means of verbal communication. C .As early as age 5 to 6 weeks , an infant vocalizes with short throaty sounds. By age 8 months , more consonants and combined syllables , such as mama and dada ( although without comprehension of meaning) and by age 1 year , several short words with meaning. C. Socialization: 1.Attachment to the significant other begins at birth and becomes increasingly evident after age 6 months. 2.Between ages 4 and 8months, the infant progresses through the first stage of separation – individuation ,gaining a sense of self and his or her significant other as separate persons , and begins to a acquire a sense of object permanence , recognizing that the significant other can be absent D. communication : Talking in a soothing tone can be comforting to an infant , regularly talking to an infant also stimulates the infant to imitate sound and words. Health protection of the infant : A. Injury prevention: Accidental injuries are a major cause of death during infancy common causes include: A .falls of beds and down stairs b. Aspiration of small object c. Poisoning from overdose of medication d. Burn from hot liquids or foods e. Motor vehicle accidents , most common linked to improper use or non-use of an infant car seat. Nursing considerations associated with accident prevention: a. instructing parents to maintain a safe environment for the infant by keeping breakables , sharp objects. b. Encourage parents to avoid repetitive negative expressions for the sake of safety and to stress positive aspects of the infant's behavior , such as playing with suitable. Health promotion of the infant . a. Toy selection :infant toys serve several purposes , including a. stimulation for psychosocial development b. a mean of communication and expressing feelings. b. Infant toys should be safe and age appropriate.. b. Sleeping patterns: during the first month after birth, an infants sleeps most of the time not spent eating with age , daily sleep time decreases as awake and alert time increase .In the first year of life , an infant typically take morning and afternoon naps. Health problem of infant : 1.Fear 2.fever 3.Iron – deficiency anemia 4.Candidiasis 5. Impetigo Stags of Freud's psychosexual development : Stage Oral Anal Phallic Latency Genital Age Birth to 1 year 1 to 3 years 3 to 6 years 6 to 11 years 12 years and older Stage of Erikson's psychosocial theory: Stage Trust vs Mistrust Autonomy vs Shame and doubt Initiative vs guit Industry vs inferiority Identity vs role confusion Age 1 month- 1 year 1 – 3 years 3-6 years 6-11 years 12 – 18 years