To Avoid the Dilution Effects Caused by Too Much Sodium

Multiple Choice

To avoid the dilution effects caused by too much sodium heparin during ABG sampling of an adult, what should you do?
1) Ensure a sample volume greater than 2 ml.
2) Use dry heparin instead.
3) Fill the needle dead space only.
4) Use saline if dry heparin is not available.

A) 1 and 4 only
B) 1 and 3 only
C) 2 and 4 only
D) 1, 2, and 3 only