Table 1

Types of specimens for diagnosis of invasive mycoses7–9

Pus (from abscesses or sinus tracts)Aseptically aspirated with a syringe and needle. If a swab must be used (not recommended), material should be taken from as deep as possible
Ulcerated lesionsBiopsied or excised or swabbed (less satisfactory)
Mucous membranes and vaginal specimensScrapings for oral lesions or previously moistened (with sterile water or saline) swabs. Swabs for vaginal material
SputumFresh, ideally collected in the early morning. Result of a deep cough (not saliva) or induced by aerosol, ideally after rinsing the mouth and any dentures. 5–10 ml in a sterile container
Other respiratory specimens (bronchoalveolar lavages (BAL), bronchial brushings and washings tracheal aspirates, bronchial secretions)Aseptically collected and sent immediately to the laboratory
BloodVenous or arterial blood (when venous blood cultures are unsuccessful). 5–10 ml (accordingly to the instructions on the bottle) collected into aerobic blood cultures bottles. 2–3 sets should be taken
Bone marrow3–5 ml in a sterile container with heparin 1:1000 or EDTA
CSF3–5 ml (less is acceptable for children and neonates) in a sterile container
EyeVitreous humour (ideally 0.5 ml, less when undiluted). Corneal scrapings are inoculated directly onto appropriate culture media. Tears and fluids can be collected with a loop or a sterile plastic pipette but will only be of value in keratitis
EarScrapings of material from the ear canal. Swabs can be used
Body fluids (pleural, abdominal, synovial, peritoneal dialysate)Aspirated or drained aseptically into sterile containers (with a sample for microscopy containing heparin 1: 1000 or EDTA in the case of blood staining) or inoculated into aerobic blood culture bottles
UrineClean midstream sample (better early in the morning), catheter specimen or suprapubic (mostly in infants) aspirate. 25–30 ml sent without delay to the laboratory
TissueAseptically collected, from the centre and the edge of lesions. Sent to the laboratory fresh, in sterile saline (not immersed in formalin) to prevent dessication
  • All samples should be collected and transported in sterile containers.