Test Details
Mnemonic
MTBNR
Ordering Code
3400041
CPT-4 Code(s)
87556
Specimen Information
Collect
Cerebrospinal Fluid (CSF)
Specimen Preparation
Collect 1.0 mL Cerebrospinal Fluid (CSF) in a sterile screw capped plastic vial.
Alternate Specimen
Gastric lavage (must be neutralized with sodium bicarbonate within 4 hours of collection), pericardial fluid, peritoneal fluid, pleural fluid, synovial fluid, abscess fluid, urine collected in a sterile, leak-proof container.
Whole blood collected in an EDTA (lavender-top) tube or ACD (yellow-top) tube.
Vitreous eye fluid 0.5 mL (0.2 mL minimum) collected in a sterile, leak-proof container.
Fresh (unfixed) 2 grams tissue collected in a sterile leak-proof container in a small amount of
saline, no fixative or preservative.
Whole blood collected in an EDTA (lavender-top) tube or ACD (yellow-top) tube.
Vitreous eye fluid 0.5 mL (0.2 mL minimum) collected in a sterile, leak-proof container.
Fresh (unfixed) 2 grams tissue collected in a sterile leak-proof container in a small amount of
saline, no fixative or preservative.
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Vitreous eye fluid: Frozen.
Vitreous eye fluid: Frozen.
Rejection Criteria
Tissue collected in fixative or preservative.
Swabs, sputum, specimen received in formalin and/or alcohol.
Formalin-fixed paraffin-embedded tissue, culture isolates, non-neutralized gastric lavage.
Swabs, sputum, specimen received in formalin and/or alcohol.
Formalin-fixed paraffin-embedded tissue, culture isolates, non-neutralized gastric lavage.
Stability
Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 30 days
Vitreous Fluid
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Vitreous Fluid
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
Methodology
Real-Time Polymerase Chain Reaction (PCR)
Reference Range
See report
Performing Laboratory
Quest SJC
New York DOH Approval Status
Yes