A nurse is teaching a class about administering IV fluids to treat dehydration. The nurse should include in the teaching that which of the following laboratory values indicates effective treatment of dehydration?

A. Infiltration:
Infiltration refers to the inadvertent administration of a non-vesicant solution into the surrounding tissue. It is characterized by swelling, pallor, and coolness at the infusion site, but redness and inflammation along the vein are not typical signs of infiltration.
B. Extravasation:
Extravasation occurs when a vesicant solution (a substance that can cause tissue damage) infiltrates into the surrounding tissue. It can cause tissue damage and necrosis. While inflammation is a concern with extravasation, it is not the primary sign, and redness may occur later.
C. Venous spasm:
Venous spasm involves the constriction of the blood vessel, leading to decreased blood flow. It is not typically associated with redness and inflammation along the vein.
D. Phlebitis:
This is the correct answer. Phlebitis refers to inflammation of a vein, and it is characterized by redness, warmth, and tenderness along the course of the vein. Phlebitis can be caused by various factors, including irritants in the infused solution, mechanical trauma, or infection.

A. Dominant antecubital basilic vein:
While the basilic vein in the antecubital area is a suitable site, the nondominant arm is generally preferred when possible to minimize interference with the client's activities.
B. Nondominant dorsal venous arch:
The dorsal venous arch, located on the back of the hand or wrist, is a common site for peripheral IV catheter placement. It is preferred over other sites like the antecubital area due to lower risks of complications such as phlebitis and infiltration. Additionally, using the nondominant hand reduces interference with daily activities.
C. Dominant distal dorsal vein:
The dorsal veins are generally not the first choice for peripheral IV catheter placement due to the potential for complications such as infiltration.
D. Nondominant forearm basilic vein:

Nondominant forearm basilic vein: The basilic vein in the nondominant forearm is often a suitable site for peripheral IV catheter placement. The nondominant arm is preferred when feasible to minimize disruption of activities for the client. However, its preferred to start the IV infusion distally to provide the option of proceeding up the extremity if the vein is ruptured or infiltration occurs; if infiltration occurs from the antecubital vein, the lower veins in the same arm usually should not be used for further puncture sites.