A tiny needle prick on your newborn’s foot can tell doctors most of what they need to know about your baby’s genes. Doctors use the heel-stick test, a type of blood test, to check for a variety of (rare) genetic problems.
What does the infant heel stick test for?
Within 48 hours of a child’s birth, a sample of blood is obtained from a “heel stick,” and the blood is analyzed for up to 50 diseases, including phenylketonuria (PKU), sickle cell disease, and hypothyroidism. The sample, called a “blood spot,” is tested at a state public health or other participating laboratory.
Why do we prefer heel puncture on infants?
Why is blood taken from a baby’s heel? The heel is a viable source of blood whenever capillary blood is acceptable as a sample for testing. A heel stick is a simple and safe way to draw blood in newborns in situations that include the following: Only a small blood sample is required for testing.
What test do they run on newborns?
The newborn screening test, called the Recommended Uniform Screening Panel (RUSP), is done when your baby turns 24 hours old and is usually performed in the nursery at the hospital. The nurse will swab your baby’s heel, then prick the heel and blot five small blood samples on a testing paper.
Can parents refuse newborn screening?
All states require screening to be performed on newborns, but most will allow parents to refuse for religious purposes. Any decision to decline or refuse testing should first be discussed with a health professional, since newborn screening is designed to protect the health of the baby.
What is the safest area for infant heel puncture?
Therefore, in order to avoid calcaneal puncture and the risk of osteochondritis, heel puncture in the newborn should be done: (1) on the most medial or lateral portions of the plantar surface of the heel; (2) no deeper than 2.4 mm; (3) not on the posterior curvature of the heel; and (4) not through previous puncture …
Why do they take blood out of your heel?
The ‘heel prick test’ is when a blood sample is taken from a baby’s heel so that the baby’s blood can be tested for certain metabolic disorders. The blood sample is taken using an automated device called a lancet. The lancet is used to make a small puncture on the side of the baby’s heel.
Why must the first drop of blood be wiped away?
Wipe away the first drop of blood because it may be contaminated with tissue fluid or debris (sloughing skin). Avoid squeezing the finger or heel too tightly because this dilutes the specimen with tissue fluid (plasma) and increases the probability of haemolysis (60).
Do they blood type newborns?
Rh factors are genetically determined. A baby may have the blood type and Rh factor of either parent, or a combination of both parents. Rh factors follow a common pattern of genetic inheritance. The Rh-positive gene is dominant (stronger) and even when paired with an Rh-negative gene, the positive gene takes over.
Do they test for nicotine in newborns?
A major finding was the detection of cotinine at levels ≥0.3 ng/g (equivalent to 0.2 ng/mL plasma) in 35% of newborns, including 29% of newborns whose mothers reportedly did not smoke cigarettes during pregnancy, some of whom were presumably exposed to environmental tobacco smoke.
How long do mothers and newborns stay in the hospital?
A newborn baby and her mother in the hospital. nateone/Flickr The World Health Organization recommends that women who have uncomplicated vaginal deliveries stay in the hospital for at least 24 hours after birth. The first 24 hours after birth are critical for monitoring both the baby’s and the mother’s health.
What are the disadvantages of newborn screening?
If newborns are not screened early on, they may suffer tragic consequences, including brain damage, developmental and physiological delays, breathing problems, and even death.
Why do parents refuse newborn screening?
Many parents may wish to reject certain tests whose predictive value is limited and yet whose practical and psychological implications are strong. The recommended tests vary in the extent to which they help identify children for whom an immediate and lifesaving intervention is warranted.
How long do newborn screening results take?
It takes about three weeks for your doctor to receive your baby’s results. If your baby needs more testing, you will be notified by phone or letter in a few days after your baby’s blood spot is collected.