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Metabolic Screen, Qualitative

Referred out for testing

Source Urine
Mnemonic BGLNON

BGL Non-Blood Test Name field: Metabolic Scrn

TEST NAME ALERT: Basic Metabolic Panel, BMP, Comprehensive Metabolic Panel, and CMP are groups of tests that are not the same as Metabolic Screen, Qualitative. If Basic Metabolic Panel (BMP) or Comprehensive Metabolic Panel (CMP) is requested, refer to procedure PX-QR3110 Panel Tests.
Specimen Requirements

Prefer 5-10 mL random urine, first morning void if possible.  5-10 mL of 24-hour urine with no preservative is also acceptable.

Minimum: 4.0 mL urine.

Specimen Handling

If specimen is transferred to secondary container, write "random urine" or "24-hour urine" as appropriate on label.  Send a copy of the requisition with the specimen.

PSC:
Send on ice to DSC.

RRL:
Send on ice to ACH.

Extra-regional:
Freeze before transport to DSC.

DSC:
Freeze specimens upon receipt in lab; frozen specimens do not thaw.

Additional Information

Disclaimer: These qualitative tests are used as a screen for certain underlying inherited (i.e. genetic) disorders of amino acid, carbohydrate, thiol-containing, and mucopolysaccharide metabolism. These tests are meant to complement targeted diagnostic investigations based on a patient's clinical presentation. These tests should not be relied on solely to establish nor rule out a clinically-suspected diagnosis.

The qualitative metabolic screen consists of the following tests performed on urine: Ferric Chloride Test; 2,4-Dinitrophenylhydrazine Test (DNPH); Benedict's Test for Reducing Substances, Nitroprusside Test, Toluidine Blue Test, Cetyltrimethylammonium Bromide (CTMB) Turbidity Test.

Testing Location ACH Biochemical Genetics Lab
Testing Frequency Weekly; this test is not performed on a stat or priority basis.
 
Alternate Name(s)

Reducing Substances - Urine

Reference Interval N/A