Respiratory cytology is performed primarily for the diagnosis and classification of benign and malignant lung tumours. Sputum cytology is recognised to be a specimen of limited or no clinical value, and hence should be rarely received.
If cytological diagnosis is required then it is recommended that three separate consecutive deep cough specimens are sent to the laboratory. Where sputum production is poor, it can be increased artificially by inhalation of an aerosol irritant solution. These are induced sputum specimens which are also useful for investigations of opportunistic infections such as Pneumocystis jirovecii (previously known as Pneumocystis carinii) in immunosuppressed patients.
When sending early morning sputum specimens for cytology, please:
To ensure best results, we request that as much fresh specimen be sent to the laboratory as possible, within 24hrs of collection. Fresh or unfixed specimens must be received on the same day as collection.
All Trust specimens must be requested on Epic and labelled with an Epic label. All GPOCS requests must be labelled with a GPOCS label. All other requests must have a request form.
URGENT SPECIMENS: Please label urgent specimens clearly; an explanation as to why the specimen is urgent is helpful. On receipt, laboratory staff will notify the pathologist who will report the specimen as soon as possible.
HIGH RISK SPECIMENS: Requests must indicate if a specimen is high risk. Please indicate details of the risk, eg: TB, blood-borne virus, etc.
The Laboratory aims to comply with The Royal College of Pathologists Key Performance Indicator (KPI 6.4) for Cellular Pathology reporting turnaround times with 90% of all cases reported within 10 calendar days.
Specimen Labelling Procedure