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Test Code PYR Pyruvic Acid, Blood


Additional Testing Requirements


This test does not calculate the lactate:pyruvate ratio. If you would like the lactate:pyruvate ratio, order LAPYP / Lactate Pyruvate Panel, Plasma.



Specimen Required


Call 800-533-1710 or 507-266-5700 to order special collection tube.

 

Patient Preparation: Fasting (at least 4 hours)

Supplies: Perchloric Acid-Pyruvate Tube (T012)

Container/Tube: Special collection tube containing 2.5 mL of 6% perchloric acid

Specimen Volume: Exactly 1 mL

Collection Instructions:

1. Special collection tube must be prechilled prior to collection.

2. Draw enough blood directly into syringe to add exactly 1 mL of blood to the prechilled special collection tube.

3. Taking care to not spill any of the preservative, cautiously remove the cap from the tube.

4. Immediately transfer blood, once drawn, to the prechilled, special collection tube, recap, and shake vigorously to mix.

Additional Information:

1. Check expiration date before using. Supplied collection tube expires 14 months after preparation.

2. If perchloric acid (preservative) spills, obtain a new, prechilled tube.


Children's Mercy Hospital Note:

CMH COLLECTION: 2 mL in green (sodium heparin) vacutainer. Place in wet ice. Do not share the tube with other tests.

Specimen Minimum Volume

See Specimen Required

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole blood Refrigerated 15 days PYRUVATE

Useful For

Screening for possible disorders of mitochondrial metabolism, when used in conjunction with blood lactate collected at the same time, to determine the lactate-to-pyruvate ratio

Reject Due To

Gross hemolysis OK
Gross lipemia OK

Day(s) Performed

Monday, Thursday

Report Available

2 to 5 days

Reporting Name

Pyruvic Acid, B

Reference Values

0.08-0.16 mmol/L

 

NIH Unit

0.7-1.4 mg/dL

Method Name

Spectrophotometry (SP)

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

84210