A nurse is preparing to inject heparin subcutaneously for a client who is postoperative. Which of the following actions should the nurse plan to take?
A Use a 22-gauge needle.
​​​​​​​B Select a site on the client's abdomen.​​​​​​​
C Use the Z-track technique to displace the skin on the injection site.​​​​​​​
D Observe for bleb formation to confirm proper placement.