Table 1.

Indications for imaging of the bladder

Absolute indications	Blunt or penetrating external trauma with gross hematuria and a known pelvic fracture
Relative indications	Blunt external trauma with microscopic hematuria >30 RBC/HPF
	Penetrating injury to buttocks, pelvis or lower abdomen with any degree of microscopic hematuria.
	Widening of pubic symphysis >1 cm and/or widening of obturator ring >1 cm.