Chisholm Trail Technology Center Health Careers II students visited the Oklahoma Blood Institute in Enid on Nov. 3. OBI employees walked students through various skills, including venipuncture, which they recently learned as a part of their phlebotomy course at CTTC. Students attending the job shadow day included, from left, Sarena Fletcher, Yamile Saucedo, Jodie Hill, and Shaina Hamil.