Labs
Not routinely necessary
Consider CBC, chemistry, lactate if concern for strangulation
Imaging
CT, if concern for obstruction/strangulation
Ultrasound (only indicated to exclude other diagnoses)
Not routinely necessary
Consider CBC, chemistry, lactate if concern for strangulation
CT, if concern for obstruction/strangulation
Ultrasound (only indicated to exclude other diagnoses)
Hernia
Scrotal cellulitis
Abscess
Epididymitis
Volvulus
Fournier gangrene
Volvulus 
Hematocele