A nurse is preparing to initiate IV access for an older adult client. Which of the following sites should the nurse select when initiating the IV for this client?

- A. Calories is incorrect. Clients with Crohn's disease and enteroenteric fistula need adequate calories to prevent malnutrition and weight loss due to inflammation, malabsorption, and increased metabolic rate.

- B. Protein is incorrect. Clients with Crohn's disease and enteroenteric fistula need adequate protein to promote tissue healing and prevent protein-losing enteropathy.

- C. Potassium is incorrect. Clients with Crohn's disease and enteroenteric fistula are at risk of hypokalemia due to diarrhea, vomiting, and fistula drainage. They need to increase their potassium intake to prevent electrolyte imbalance and cardiac complications.

- D. Fiber is correct. Clients with Crohn's disease and enteroenteric fistula should decrease their fiber intake to reduce intestinal motility, bulk, and gas production, which can worsen the inflammation and fistula formation.

Choice A rationale:

Initiating IV access on the palmar side of the client's wrist is not recommended. This area has many delicate structures and is prone to complications such as nerve damage. Choosing a safer, larger vein proximal to the wrist is a better practice.

Choice B rationale:

Inserting a larger gauge IV catheter is not necessary unless the client's condition or prescribed therapy specifically requires it. Using an unnecessarily large catheter can cause discomfort and increase the risk of complications, such as phlebitis.

Choice C rationale:

Choosing the client's dominant arm for IV access whenever possible is not a universally appropriate guideline. The choice of the arm should depend on the condition of the veins and the individual patient's circumstances. The nurse should assess both arms and choose the one with the most suitable and accessible veins.

Choice D rationale:

Selecting a site proximal to previous venipuncture sites is the correct action. Repeated venipuncture in the same area can cause phlebitis and compromise the integrity of the veins. Selecting a new site proximal to previous punctures helps to preserve vein health and reduce the risk of complications.