A Nursing Instructor Is Demonstrating How to Perform a Heel

A nursing instructor is demonstrating how to perform a heel stick on a newborn. To obtain an accurate capillary hematocrit reading, the nursing instructor tells the students to:

A) Rub the heel vigorously with an isopropyl alcohol swab prior to obtaining blood.
B) Use a previous puncture site.
C) Cool the heel prior to obtaining blood.
D) Use a sterile needle and aspirate.