PID stands for:

• A. Pulmonary Inflammatory Disease
• B. Pelvic Inflammatory Disease
• C. Peripheral Ischemic Disease
• D. Proliferative Intracranial Disorder

Answer: (B)

Pelvic Inflammatory Disease is the correct expansion. It’s an infection of the upper female reproductive tract, usually from sexually transmitted organisms such as gonorrhea or chlamydia and often involving multiple bacteria. In EMS, recognizing PID helps differentiate it from other abdominal or GI issues and guides you toward prompt transport for medical evaluation and treatment, since definitive care involves antibiotics and further gynecologic assessment. Classic signs include lower abdominal or pelvic pain, fever, and cervical or adnexal tenderness. The other terms describe conditions in other parts of the body (lung, peripheral blood flow, or brain), so they don’t fit as the meaning of PID.