What postpartum fever threshold should prompt infection workup?

• A. 37.5 C (99.5 F)
• B. 37.0 C (98.6 F)
• C. 38.0 C (100.4 F)
• D. 39.0 C (102.2 F)

Answer: (C)

Postpartum fever signaling possible infection is 38.0°C (100.4°F) or higher. In the postpartum period, this level should prompt an infection workup because it raises concern for endometritis, wound infection, urinary tract infection, or mastitis. A lower fever, such as 37.0–37.5°C, is less specific and often not enough to trigger a full workup. When 38.0°C is reached, begin a thorough assessment: evaluate the uterus for fundal height, firmness, and tenderness; check lochia for volume and odor; inspect incisions or perineal healing for redness, swelling, or drainage; assess urinary function and check for dysuria or urinary retention; consider breast findings if mastitis is possible. Gather labs such as CBC and urinalysis with culture, and obtain cultures or imaging if the clinical picture suggests a specific source. Early recognition and prompt evaluation are key to preventing progression to more serious infection.