Blood results are of little importance as they take time to process and may show a raised White Cell Count (WCC) in both torsion and epididymitis.
Urinalysis may indicate an underlying urinary tract infection but may not confirm or refute either diagnosis.
Screening and swabs for sexually transmitted infections may be necessary to guide treatment if epididymitis is suspected from the history.7 The results of such tests will clearly not be available for use in the ED.