Test Code C AFT BLD Culture, Mycobacterial/Acid Fast Bacilli (AFB), Blood
Performing Laboratory
CCHS-Christiana Care Health ServicesMethodology
Automated Blood System/BACTECTMReference Values
No growthPhysician Office Specimen Requirements
Specimen must be delivered to laboratory within 1 hour of draw.
Container/Tube: BACTECTM MYCO/F LYTIC bottle (red label)
Specimen: 1 mL to 5 mL of blood (Optimal recovery when 3 mL to 5 mL is obtained in a BACTECTM MYCO/F LYTIC bottle.)
Transport Temperature: Ambient - Do not place on wet ice or refrigerate.
Collection Instructions: 1. Choose vein to be drawn by touching skin before it has been disinfected.
2. Cleanse skin over venipuncture site in a circle approximately 5 cm in diameter with 70% alcohol, rubbing vigorously.
3. Starting in center of circle, apply 2% iodine (or povidone-iodine) in ever-widening circles until entire circle has been saturated with iodine. Allow iodine to dry on skin for at least 1 minute. Timing is critical; a watch or timer should be used.
4. If site must be touched by phlebotomist after preparation, phlebotomist must disinfect fingers used for palpation in identical fashion or must palpate through a sterile glove.
5. Insert needle into vein and withdraw blood. Change needle and clean tops of bottle(s) with 70% alcohol before injecting blood into culture bottles. Do not overfill bottles.
6. After needle has been removed, site should be cleansed with 70% alcohol again as many patients are sensitive to iodine.
7. Maintain sterility and forward promptly at ambient temperature.
Note: Label bottle with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, date and time of collection, collector’s initials, and type of specimen.
Day(s) Test Set Up
Monday through SundayRoutine Turnaround Time
Preliminary: 5 to 7 days
Final: 6 weeks
STAT Turnaround Time: not available