METHYLPHENIDATE AND METABOLITE QUANTITATION RITALIN, URINE

METHYLPHENIDATE AND METABOLITE QUANTITATION RITALIN, URINE
Marquette General Health System

General Info

Alpha Code		R4894
MGH LIS Test No		4894
Schedule
Testing Time
Testing Lab		Mayo Labs
QORR Test Code		R4894

Specimen Info

Type		Urine
Volume		10 mL
Temperature		Frozen
Preservative
Collection Info		Specimen should be collected 1 to 6 hours post dose. Freeze and ship frozen. It is very important to keep specimen frozen.

Specimen Acceptability

Methods
HPLC/MS
Clinical Utilities
Therapeutic Drug Monitoring
CPT Codes
Reference Range
Component Information

Name
METHYLPHENIDATE

Method
HPLC/MS

CPT Code
82542

Units
ng/mL

Ref Range 100-900 ng/mL in the 8 hours following a 25 mg oral dose to adults. Concentrations as high as 3300 ng Methylphenidate/mL have been reported in the 6 hour urine of children following a 10 mg dose.

Reflex Reason

Name
RITALINIC ACID

Method
HPLC/MS

CPT Code

Units
ng/mL

Ref Range Components as high as 64,000 ng Ritalinic Acid/mL have been reported in the 6 hour urine in children following a 10 mg Methylphenidate dose.

Reflex Reason

Collection Notes
Additional Comments

Questions or Comments email support@mgh.org

Reference Lab Home Page
Laboratory Main Page
Marquette General Health System Home Page

Name		METHYLPHENIDATE
Method		HPLC/MS
CPT Code		82542
Units		ng/mL
Ref Range		100-900 ng/mL in the 8 hours following a 25 mg oral dose to adults. Concentrations as high as 3300 ng Methylphenidate/mL have been reported in the 6 hour urine of children following a 10 mg dose.
Reflex Reason

Name		RITALINIC ACID
Method		HPLC/MS
CPT Code
Units		ng/mL
Ref Range		Components as high as 64,000 ng Ritalinic Acid/mL have been reported in the 6 hour urine in children following a 10 mg Methylphenidate dose.
Reflex Reason