The nurse is assessing a first day postpartum client. Which finding is most indicative of a postpartum infection?

White Blood Cell (WBC. Reference Range: 5000-10,000/mm^3 (5-10 x 10^9/L)

Choice C is correct because observing the incision site of a client who was discharged home with a suprapubic catheter can help detect signs of infection, bleeding, or healing problems. The nurse should inspect the incision site for redness, swelling, drainage, or odor and report any abnormal findings.

Choice A is incorrect because measuring abdominal girth of a client who was discharged home with a suprapubic catheter is not necessary unless there are signs of urinary retention or obstruction. The nurse should monitor the urine output and color and report any changes.

Choice B is incorrect because assessing perineal area of a client who was discharged home with a suprapubic catheter is not necessary unless there are signs of infection or irritation. The nurse should instruct the client on how to keep the perineal area clean and dry and report any discomfort or discharge.

Choice D is incorrect because palpating flank area of a client who was discharged home with a suprapubic catheter is not necessary unless there are signs of urinary tract infection or kidney involvement. The nurse should ask the client about any pain or tenderness in the flank area and report any positive findings.

Choice C is correct because serum potassium, calcium, and phosphorus are electrolytes that can be affected by ESRD. ESRD is a condition in which the kidneys lose their ability to filter waste products and excess fluids from the blood. This can cause electrolyte imbalances that can lead to serious complications, such as cardiac arrhythmias, bone disorders, or metabolic acidosis. The nurse should closely monitor these electrolytes and report any abnormal values.

Choice A is incorrect because blood pressure, heart rate, and temperature are vital signs that are not specific to ESRD. Vital signs can be influenced by many factors and may not reflect the severity of kidney damage. The nurse should monitor vital signs regularly, but not as closely as electrolytes.

Choice B is incorrect because leukocytes, neutrophils, and thyroxine are not laboratory results that are directly related to ESRD. Leukocytes and neutrophils are types of white blood cells that are involved in immune response and inflammation. Thyroxine is a hormone that regulates metabolism and growth. These laboratory results may be altered by other conditions or medications, but not by ESRD.

Choice D is incorrect because erythrocytes, hemoglobin, and hematocrit are laboratory results that measure the red blood cell count and oxygen-carrying capacity of the blood. These laboratory results may be decreased in ESRD due to anemia, which is a common complication of chronic kidney disease. However, anemia is not as life-threatening as electrolyte imbalances and can be treated with erythropoietin injections or iron supplements.