V03.99

Clinical Causes: Collisions between pedestrians and motor vehicles, including cars, trucks, and vans Pedestrians engaged in activities such as walking, skating, sledding, snowboarding, or using mobility devices when struck by a vehicle Accidents occurring in both traffic environments (like streets and highways) and nontraffic settings (such as parking lots or private properties) Incidents involving special populations such as pedestrians using baby strollers, wheelchairs, or motorized mobility devices Poor visibility conditions, including nighttime or weather-related factors like ice or snow, contributing to collisions

Key Symptoms: Pain or tenderness in parts of the body affected by trauma Bruising or swelling at the injury site Cuts, lacerations, or abrasions from impact or road debris Fractures or broken bones, especially in limbs, ribs, or pelvis Head injuries, such as concussions or lacerations Loss of consciousness or altered mental status Dizziness, weakness, or nausea following the incident Mobility issues or difficulty moving affected limbs Signs of internal injuries, such as abdominal pain or bleeding

Diagnosis Path: Diagnosis typically involves a detailed physical examination and medical history assessment. Imaging tests like X-rays, CT scans, or MRIs are often used to identify fractures, internal injuries, or bleeding. Emergency assessments focus on vital signs, neurologic status, and hemodynamic stability. The healthcare provider may also evaluate for signs of shock or other complications stemming from the trauma.

Treatment Protocols: The management of injuries resulting from pedestrian-vehicle collisions is individualized, depending on injury severity. Common treatments include: - Immediate first aid and stabilization - Wound cleaning, suturing, or surgical intervention for severe lacerations - Fracture stabilization with casts, splints, or surgery - Emergency procedures for internal injuries, such as fluid resuscitation or surgery - Pain management with medications - Rehabilitation therapies, including physical and occupational therapy, to restore mobility and function - Follow-up imaging and assessments to monitor healing Preventative measures and safety equipment, such as helmets, reflectors, and pedestrian zones, are critical in reducing injury risk.