A Patient with Type 1 Diabetes Has Been Using Self-Monitoring

A patient with type 1 diabetes has been using self-monitoring of blood glucose (SMBG) as part of diabetes management. During evaluation of the patient's technique of SMBG, the nurse identifies a need for additional teaching when the patient

A) washes the puncture site using soap and warm water.
B) chooses a puncture site in the center of the finger pad.
C) hangs the arm down for a minute before puncturing the site.
D) says the result of 130 mg indicates good blood sugar control.