Final answer:
If 20-40 mEq of KCl need to be given, it is recommended to use a CVAD rather than a peripheral vein to reduce the risk of complications.
Step-by-step explanation:
If 20-40 mEq (milliequivalents) of KCl (potassium chloride) need to be given, it is recommended to use a central venous access device (CVAD) rather than a peripheral vein.
A CVAD is a type of catheter that is inserted into a large vein, such as the superior vena cava, which leads directly to the heart. This allows for the administration of medications or fluids that may be irritating or damaging to peripheral veins.
Using a CVAD reduces the risk of complications, such as phlebitis or bloodstream infections, that can occur when administering high concentrations or volumes of KCl through a peripheral vein.