How do I use the OneTouch® Lancing Device?

Preparing your sample site

Before you test your blood sugar, wash your hands and forearm (if applicable) thoroughly with warm, soapy water. Rinse and dry.

Lancing and sampling from your fingertip

Step 1

Remove the blue (or black) cap by snapping it off

Step 2

Insert a sterile lancet into the OneTouch® Lancing Device

Insert the lancet into the holder and push in firmly. Twist the protective disk until it separates from the lancet and save the disk for later use. Do not twist the lancet.

Step 3

Replace the blue (or black) cap by snapping it back on

Step 4

Adjust the depth setting

The OneTouch® Lancing Device has nine puncture depth settings, numbered 1 through 9. The smaller numbers are for a shallower puncture, and the larger numbers are for a deeper puncture.

Shallower punctures work for children and most adults. Deeper punctures work well for people with thick or callused skin. Twist the blue (or black) cap until the correct setting appears.

NOTE: A shallower puncture may be less painful. Try a shallower setting first and increase the depth until you find the 1 deep enough to get a blood sample of at least 1 microliter.

Step 5

Prepare the OneTouch® Lancing Device

Slide the control button back until it clicks. If it does not click, the control button may have already been locked back and ready to spring for site puncture when you inserted the lancet.

Step 6

Puncture your finger

Hold the OneTouch® Lancing Device firmly against the side of your finger. Press the release button. Remove the OneTouch® Lancing Device from your finger.

Step 7

Get a round drop of blood

Gently squeeze or massage your fingertip until a round drop of blood of at least 1 microliter forms on your fingertip.

If the blood smears or runs, do not use that sample. Dry the area and gently squeeze another drop of blood or puncture a new site.