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Synonyms
- Quaalude®
Test Includes
Screen and MS confirmation of presumptive positives for methaqualone
Special Instructions
Chain-of-custody documentation is required for samples submitted for preëmployment, random employee testing, and forensic purposes. For other applications, use the standard request form. Please mark chain-of-custody test number on the request form.
Expected Turnaround Time
3 - 5 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
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3 - 5 days |
Specimen Requirements
Specimen
Urine
Volume
20 mL
Container
Use plastic urine drug bottle and tamper-evident seal for forensic specimen. Collection kits are available by request from the laboratory.
Collection
Urine temperature monitoring is recommended for samples to be tested for medicolegal purposes.
Storage Instructions
Maintain specimen at room temperature. If arrival extends beyond seven days, then refrigerate.
Causes for Rejection
Quantity not sufficient for analysis; improper specimen (serum, plasma, blood); incomplete chain-of-custody documentation; incomplete specimen identification; improper or missing tamper-evident seals
Test Details
Use
Drugs of abuse testing
Methodology
Initial testing by immunoassay (IA); confirmation of positives by mass spectrometry (MS)
Reference Interval
Detectability: Screen cutoff: 300 ng/mL, confirmation: 200 ng/mL
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 798272 | Methaqualone Screen, Urine | 3786-1 | 714873 | Methaqualone | ng/mL | 3786-1 |
| Reflex Table for Methaqualone | ||||||
|---|---|---|---|---|---|---|
| Order Code | Order Name | Result Code | Result Name | UofM | Result LOINC | |
| Reflex 1 | 799064 | Methaqualone Confirmation, Ur | 777177 | Methaqualone | 3786-1 | |
| Reflex Table for Methaqualone | ||||||
|---|---|---|---|---|---|---|
| Order Code | Order Name | Result Code | Result Name | UofM | Result LOINC | |
| Reflex 1 | 799064 | Methaqualone Confirmation, Ur | 071795 | Methaqualone GC/MS Conf | ng/mL | 16244-6 |
| Reflex Table for Methaqualone | ||||||
|---|---|---|---|---|---|---|
| Order Code | Order Name | Result Code | Result Name | UofM | Result LOINC | |
| Reflex 1 | 799064 | Methaqualone Confirmation, Ur | 070474 | Documentation | n/a | |
| Reflex Table for Methaqualone | ||||||
|---|---|---|---|---|---|---|
| Order Code | Order Name | Result Code | Result Name | UofM | Result LOINC | |
| Reflex 1 | 799064 | Methaqualone Confirmation, Ur | 711787 | Methaqualone GC/MS Holding | n/a | |
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CPT Statement/Profile Statement
The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf