After confirming with Ms. Rollins that she is feeling "okay,"Lena decides to continue with the venipuncture procedure. Ms. Rollins is sitting upright in a venipuncture chair. After gathering the necessary supplies and preparing the site with alcohol, Lena re-applies the tourniquet to Ms. Rollins' arm and inserts the needle. As soon as the needle pierces the vein, a drop of blood becomes visible at the insertion site. Ms. Rollins sees the blood, lets out a gasp, and faints