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25517 Metanephrine Fractionation, Urine, Others (non-Canine)

Metanephrine Fractionation, Urine, Others (non-Canine)
Test Code: VMETRNO
Synonyms/Keywords
​Metanephrine, Normetanephrine (Metanephrine metabolite)
Test Components
​Metanephrine/Creatinine Ratio
Normetanephrine/Creatinine Ratio
Species
Alpaca, Avian, Bovine, Camelid, Caprine, Equine, Feline, Ferret, Mouse, Other, Ovine, Porcine, Primate, Rabbit, Rat
Test Category
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
​Urine, Random Pre-weighed 0.01 g sulfamic acid aliquot tube Any sterile plastic tube or sage cup ​5.0 mL ​3.0 mL
Collection Processing Instructions
Collect urine in a clean container and pour into pre-weighed 0.01 gram sulfamic acid aliquot tube provided by Marshfield Lab. Acceptable alternative preservative is to add a few granules of sulfamic acid or acidify with dilute hydrochloric acid to a pH <5. Acid preservative needs to be added within 24 hours of collection. If preservative is not available, samples can be sent unpreserved and refrigerated if arrival in lab is less than 24 hours from collection time. If time from collection to lab arrival is greater than 24 hours, it is acceptable to immediately freeze unpreserved samples and transport frozen. Unpreserved samples will be acidified upon arrival in lab.
 
* For feline species, a control sample is not required to be sent with patient sample.
 
* For all other species, a patient control sample should be submitted for this test and also preserved. CLEARLY identify the tubes as "Control" and "Patient". If no control sample is available, Write "No Control Sent" on the lab requisition form.
Specimen Stability Information
Specimen Type Temperature Time
​Urine, Random- Preserved ​ ​Refrigerate 1 month
​Frozen ​2 months
​Urine, Random- Not Preserved ​ ​Refrigerate ​24 hours
​Frozen ​2 weeks
Performing Laboratory Information
 
 
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ ​Tuesday and Thursday​24 hours​LC/MS MS
Creatinine performed in the 24HS Chemistry Lab, Normetanephrine and Metanephrine performed in Special Chemistry.​ ​ ​ ​ ​
Samples must be in the performing department by 8 am on the day of testing for results the same day.​
Samples needing repeat testing due to high result will be repeated with the next scheduled run.  Results will not be available until the repeat analysis is performed.
Marshfield Center Laboratory Section
Reference Intervals

​Feline Reference Range:  Metanephrine  6-158 ug/g creatinine;  Normetanephrine 12-499 ug/g

No reference range for other species

Synonyms/Keywords
​Metanephrine, Normetanephrine (Metanephrine metabolite)
Test Components
​Metanephrine/Creatinine Ratio
Normetanephrine/Creatinine Ratio
Species
Alpaca, Avian, Bovine, Camelid, Caprine, Equine, Feline, Ferret, Mouse, Other, Ovine, Porcine, Primate, Rabbit, Rat
Test Category
Specimen Requirements
Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
​Urine, Random Pre-weighed 0.01 g sulfamic acid aliquot tube Any sterile plastic tube or sage cup ​5.0 mL ​3.0 mL
Collection Processing Instructions
Collect urine in a clean container and pour into pre-weighed 0.01 gram sulfamic acid aliquot tube provided by Marshfield Lab. Acceptable alternative preservative is to add a few granules of sulfamic acid or acidify with dilute hydrochloric acid to a pH <5. Acid preservative needs to be added within 24 hours of collection. If preservative is not available, samples can be sent unpreserved and refrigerated if arrival in lab is less than 24 hours from collection time. If time from collection to lab arrival is greater than 24 hours, it is acceptable to immediately freeze unpreserved samples and transport frozen. Unpreserved samples will be acidified upon arrival in lab.
 
* For feline species, a control sample is not required to be sent with patient sample.
 
* For all other species, a patient control sample should be submitted for this test and also preserved. CLEARLY identify the tubes as "Control" and "Patient". If no control sample is available, Write "No Control Sent" on the lab requisition form.
Specimen Stability Information
Specimen Type Temperature Time
​Urine, Random- Preserved ​ ​Refrigerate 1 month
​Frozen ​2 months
​Urine, Random- Not Preserved ​ ​Refrigerate ​24 hours
​Frozen ​2 weeks
Reference Intervals

​Feline Reference Range:  Metanephrine  6-158 ug/g creatinine;  Normetanephrine 12-499 ug/g

No reference range for other species

Performing Laboratory Information
 
 
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ ​Tuesday and Thursday​24 hours​LC/MS MS
Creatinine performed in the 24HS Chemistry Lab, Normetanephrine and Metanephrine performed in Special Chemistry.​ ​ ​ ​ ​
Samples must be in the performing department by 8 am on the day of testing for results the same day.​
Samples needing repeat testing due to high result will be repeated with the next scheduled run.  Results will not be available until the repeat analysis is performed.
Laboratory Section
For most current information refer to the Marshfield Laboratory online reference manual.