Quote from L&Dsomeday
Oh nothing like a little guilt right off the bat to a new mommy! At one hour the test is useless! I have always declined in the hospital (we usually leave with in 12 hours) and have the test done by 3 days of age.
My advice: Keep the little one in an upright baby carrier (baby bjorn, etc.) and the blood sample is obtained much easier. In the end the best sample was when I kept my daughter in the carrier, foot exposed, and the sample was taken.
Please don't put words in my mouth. I am not trying to guilt a new mother, but rather pass along accurate information on this test. A PKU done at 1 hour of age IS useless, and completely unnecessary, unless the baby was leaving the hospital at this time. If this baby actually had PKU, it is highly unlikely that it would have been detected based on a test done at 1 hour of age. What a waste of time, money, and discomfort!
Your advice on keeping baby upright prior to (and perhaps while) drawing heelstick blood is very good. Let gravity work with you. It pains me to read of babies with purple feet from squeezing. This is totally unnecessary and counter-productive, as squeezing causes hemolysis, not to mention pain and bruising. There is another thread on drawing heelstick blood, but 3 basic steps are: 1. Warm the extremity first. 2. Select an appropriate size lancet. Tenderfoot brand is one of the best choice, and has sizes appropriate for preemies and full term infants. 3. Gently MILK the extremity from the knee down to the heel. This results in good blood flow, without squeezing.
Finally, venous blood is perfectly fine for a PKU, as long as it is drawn using non-heparinized equipment.
Again, StuNurseUP, I am sorry for your experience. It would not be unreasonable for you to contact the hospital and request an explanation of how your child's PKU was drawn, and why it was done so soon after birth.