How to Collect from Preemies

From Mary B. Paoli at Palmetto Health:

What is the best collection method for coagulation specimens from tiny babies?  Our NICU nurses draw these sometimes with butterfly adapters and sometimes with the Gelco IV needles.  They are often clotted or hemolyzed and the nurses are naturally upset with the need to re-draw specimens.  We must limit the amount of blood taken from these premies so large discard amounts are discouraged.  I’m interested in how others handle getting good specimens from these smallest patients.