Brochioalveola lavage (BAL), Bronchial washing, BW
Processing saline introduced into the lung at bronchoscopy in
order to investigate for deep seated pathogens, viruses and
Abnormal chest X-Ray, suspected TB, viral, fungal or PCP
infection in immunocompromised patients.
Available via ICE.
Performed by the endoscopy unit, heart and chest clinic ot ITU
Routine culture - 5 days.
TB culture - microscopy 24hr. culture 42 days.
PCP/viral investigation (reference test by Great Ormond Street
Hospital) - 7 to 10 days.
Fungal culture - 48hr - 5 days.
White top universal.
Causes For Rejection
As an unrepeatable sample these are usually not rejected but in
the case of inadequate sample identification the requester may be
required to complete and sign a disclaimer before the sample is
Handle as a high risk sample (category 3), process as soon as