Test ID: RIF
Antimicrobial Serum Level, Rifampin, HPLC
Specimen Type 
Describes the specimen type needed for testing
Serum Red
Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.
Draw blood in a plain, red-top tube(s). (Serum gel tube is not acceptable.) Spin down and send 2 mL of serum frozen in amber vial (Supply T192) to protect from light.
Note: Specimens collected just before or within 15 minutes of the next antibiotic dose represent the TROUGH levels. Specimens obtained within 15-30 minutes after the end of I.V. infusion, or 45-60 minutes after am IM injection, or 90 minutes after oral intake represent the PEAK level.
Drug which may interfere with this assay is Sulindac.
Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.
1 mL
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| Hemolysis | NA |
| Thawing | NA |
| Lipemia | NA |
| Icterus | NA |
| Other | Serum gel tube is not acceptable. |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum Red | Frozen | 14 days |
External
link
PDF
document
Excel
document
Word
document