**Question:** Puerperial pyrexia is fever for 24 hours or more after childbirth if temperature is more than (degree F): March 2013

**Core Concept:** Puerperial pyrexia is a type of fever that occurs in women following childbirth. It is defined as fever lasting for 24 hours or more after childbirth, with a temperature exceeding a specific threshold.

**Why the Correct Answer is Right:** The correct answer (degree F) for defining puerperial pyrexia is 100.4°F (38°C). This temperature threshold is established to distinguish fever related to childbirth from physiological postpartum changes in temperature. A temperature above this value is considered abnormal and may indicate an underlying infection or complication, such as endometritis, which is a common postpartum infection affecting the uterus.

**Why Each Wrong Option is Incorrect:**

A. 98.6°F (37°C) is the normal body temperature and is too low to meet the criteria for puerperal pyrexia.

B. The threshold should be higher (e.g., 101°F), but the correct answer is 100.4°F (38°C).

C. This option is incorrect because puerperal pyrexia is defined based on a specific temperature threshold, not the duration of fever.

D. Another incorrect option as the correct answer is 100.4°F (38°C).

**Clinical Pearl:** It is essential for healthcare professionals to be aware of the specific temperature criteria for diagnosing puerperal pyrexia. Monitoring a postpartum woman's temperature regularly and promptly treating identified infections is crucial to prevent complications and maintain maternal and neonatal wellbeing.

**Correct Answer:** 100.4°F (38°C)