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HelpTest Code RITALSO Methylphenidate (79)
Additional Codes
MedTox Laboratories Test Code: 79
Useful For
Therapeutic Drug Management
Synonyms/Keywords
Ritalin
Specimen Requirements
| Specimen Type | Preferred Container/Tube | Acceptable Container/Tube | Specimen Volume | Specimen Minimum Volume (allows for 1 repeat) |
Pediatric Minimum Volume (no repeat) |
|---|---|---|---|---|---|
| Serum | Red Top Tube (RTT) | 2 mL | 0.5 mL | ||
| Plasma | Lithium-heparin Green Top Tube or Sodium-heparin Green Top Tube (GTT) | 2 mL | 0.5 mL |
Collection/Processing Instructions
Spin down and freeze immediately. Peak levels occur at 1-3 hours post dose; trough levels often not detectable.
Specimen Stability Information
| Specimen Type | Temperature | Days |
|---|---|---|
| Serum or Plasma | Frozen | 14 |
Rejection Criteria
| Serum Separator Tube (SST) |
|---|
| Samples not frozen |
Reference Range Information
| Performing Location | Reference Range |
|---|---|
| Medtox Laboratories |
5.0 - 20.0 ng/mL |
Performing Laboratory Name
Medtox Laboratories
Referral Laboratory Information
| Address | Telephone | Website Link | Marshfield Lab Account # |
|---|---|---|---|
|
402 West County Road D St. Paul, MN 55112 |
800-832-3244 (Main) 888-310-2264 (Team Emerald) |
www.medtox.com | 1080 |
Performing Information
| Performing Location | Day(s) Test Performed | Analytical Time | Methodology/Instrumentation |
|---|---|---|---|
| Medtox Laboratories | Tuesday | 5 days | Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) |
CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 80360 |
Outreach CPT Codes
| CPT | Modifier (if needed) |
Quantity | Description | Comments |
|---|---|---|---|---|
| 80360 |
Ordering Applications
| Ordering Application | Description |
|---|---|
| Centricity | Methylphenidate, Blood (79) |
| Cerner | Ritalin Level (79) |