The nurse reviews the laboratory results for a client with a chronic lower leg wound.
The white blood cell count is 16,500/uL (Reference Range: 4,000-10,000/uL). The hemoglobin is 12 g/dL (Reference Range: 12-17 g/dL) and hematocrit is 35 The platelet count is 375,000/uL (Reference Range: 150,000-350,000/uL). The glucose level is 115 mg/dL (Reference Range: 70-100 mg/dL) and C-reactive protein is 15 mg/dL (Reference Range: <10 mg/dL). Based on these findings, which result most clearly indicates an acute inflammatory response?

Choice A rationale

The back of the hand is a common site for peripheral intravenous catheters but is not an appropriate location for a central venous access device. Central lines must terminate in a large vessel, typically the superior vena cava, to handle highly concentrated or vesicant medications. Peripheral veins in the hand are too small and are located too far from the central circulation to serve as an insertion point for a standard non-peripherally inserted central catheter.

Choice B rationale

The fourth intercostal space is an anatomical landmark often used for positioning ECG leads or identifying heart sounds, but it is not a primary site for central venous access. While the tip of a central line often resides near the level of the fourth intercostal space within the superior vena cava, the actual insertion of the needle and catheter occurs higher up in the neck or chest area to access the internal jugular or subclavian veins.

Choice C rationale

The area below the sternum is generally associated with the epigastric region of the abdomen. There are no major veins in this specific superficial location suitable for the insertion of a central venous access device. Central access requires reaching deep, large-diameter veins that lead directly to the heart. Attempting access below the sternum would involve risking injury to abdominal organs and would not provide the necessary direct route to the central venous system.

Choice D rationale

The subclavian vein, located just beneath the clavicle, is one of the most common and preferred sites for the insertion of a central venous access device. It provides a direct and relatively straight route to the superior vena cava. Assessing this area involves checking for anatomical landmarks, skin integrity, and any contraindications such as previous surgeries or pacemakers. This site is favored for its lower risk of infection compared to the femoral or jugular sites.

Choice A rationale

Purulent drainage is thick and opaque, often appearing yellow, green, or brown. It is primarily composed of dead debris, inflammatory cells, and live or dead bacteria. The presence of purulent discharge is a hallmark sign of infection within the wound bed. Because the client's drainage is described as clear, thin, and watery, it does not meet the criteria for purulent material, which indicates a more significant inflammatory and infectious response.

Choice B rationale

Serosanguineous drainage is a mixture of serum and red blood cells, resulting in a pale red or pinkish fluid that is thin and watery. It is commonly seen in the early stages of wound healing or after surgical dressing changes. While it shares the thin consistency described, the presence of a pink or red tint distinguishes it from purely clear fluid. Therefore, it does not accurately describe the clear drainage noted in this assessment.

Choice C rationale

Serous drainage is the clear, yellowish, or thin watery part of the blood that is left over after the cells and clotting factors have been removed. It is a normal finding during the inflammatory stage of wound healing and represents the leakage of plasma from capillaries into the interstitial space. It is characterized by its lack of color and low viscosity, which perfectly matches the nurse's observation of a clear and watery wound output.

Choice D rationale

Sanguineous drainage consists of large amounts of red blood cells and looks like bright red or dark red blood. This type of drainage indicates fresh bleeding from the wound site, which may occur immediately after an injury or surgery. Since the description provided specifies that the fluid is clear and watery, it cannot be documented as sanguineous, as the latter requires the visible presence of whole blood and a deep red color.