Developmental Considerations (Skin, Hair, Nails) Flashcards
Skin Colour: General Pigmentation.
Melanotic colour is evident in the nail beds and scrotal folds.
Infants
Newborns of ___ descent initially have lighter toned skin than their parents because pigment production is not yet fully functional.
African
Abnormal Findings in Infants
Multiple bruises in various stages of healing, or pattern injury, suggest ______.
child abuse
A common hyperpigmentation in newborns of Aboriginal, African, East Indian, or Hispanic descent.
- Appearance: Blue-black to purple macular area at the sacrum or buttocks, but sometimes it occurs on the abdomen, thighs, shoulders, or arms. Due to deep dermal melanocytes. Fades during the first year. Adulthood, spots are lighter but frequently still visible.
- Recognizing this normal variation is important to avoid identifying children as victims of child abuse.
A mongolian spot
Presence of six or more café au lait macules, each more than 1.5 cm in diameter, is diagnostic of ____, an inherited neurocutaneous disease.
neurofibromatosis
Skin Colour Change. Three erythematous states are common variations in the neonate:
- The newborn’s skin has a beefy-red flush for the first 24 hours because of vasomotor instability; then the colour fades to its normal shade.
- Harlequin colour change, occurs when the baby is in a side-lying position. The lower half of the body turns red, and the upper half blanches with a distinct demarcation line down the midline. Cause unknown.
- Erythema toxicum, a common rash appears in the first 3 to 4 days of life. Called the “flea bite” rash or “newborn rash,” it consists of tiny, punctate, red macules and papules on the cheeks, trunk, chest, back, and buttocks. Cause unknown.
Occurs when the baby is in a side-lying position. The lower half of the body turns red, and the upper half blanches with a distinct demarcation line down the midline. Cause unknown.
Harlequin colour change
a common rash appears in the first 3 to 4 days of life. Called the “flea bite” rash or “newborn rash,” it consists of tiny, punctate, red macules and papules on the cheeks, trunk, chest, back, and buttocks. Cause unknown
Erythema toxicum
Two temporary cyanotic conditions may occur in Infants:
Acrocyanosis.
Cutis marmorata
Appearance: bluish colour around the lips, on the hands and fingernails, and on the feet and toenails. This may last for a few hours and disappear with warming.
Acrocyanosis
A transient mottling in the trunk and extremities due to cooler room temperatures.
Appearance: Reticulated red or blue pattern over the skin.
Cutis marmorata
Abnormal Findings:
Persistent generalized _____ indicates distress (i.e., congenital heart disease).
cyanosis
Persistent or pronounced cutis marmorata occurs with ___& ___.
Down syndrome and prematurity
Green-brown discoloration of the skin, nails, and umbilical cord occurs with passing of ____, which produces fetal distress.
meconium in utero
- A common variation in about half of all newborns.
Appearance: A yellowing of the skin, sclera, and mucous membranes develops after the third or fourth day of life due to increased numbers of red blood cells that hemolyze after birth.
Physiological Jaundice:
Abnormal Findings:
Jaundice: First day of life =
Hemolytic disease
Jaundice: After 2 weeks of age =
biliary tract obstruction
Produces a yellow-orange colour in light-skinned persons but no yellowing in the sclerae or mucous membranes. It results from ingestion of large amounts of foods containing carotene
Example: Vitamin A precursor (i.e., carrots)
It fades to normal within 2 to 6 weeks after carotene-rich foods are withdrawn from the diet.
Carotenemia:
Moisture. ____, the moist, white, cream cheese–like substance that covers part of the skin of all newborns. Perspiration is present after 1 month of age.
Vernix caseosa
Texture. ____are tiny while papules on the cheeks, forehead, and across the nose and chin caused by sebum that occludes the opening of the follicles. Tell parents not to squeeze the lesions; these resolve spontaneously within a few weeks.
Milia
Thickness. In neonates, the epidermis is normally ____, but there are well-defined areas of subcutaneous fat.
thin