Citrate Excretion, Pediatric, Random Urine - LG6203


Sunquest Code:MMMISC  
Epic Code:LAB4909Epic Name:Send Outs Misc Test
Synonyms:Citric Acid, Urine
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 1-3 days.
Special Instructions:For patients less than 16 years of age. See Citrate, Urine (UCIT) for patients 16 year of age and older.
Compliance:

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.



Collection Instructions

Specimen:Urine, random collection without preservative
Optimal Volume:5 mL
Minimum\Peds Volume:1 mL
Container:Plastic leakproof container, sterile
Collection Instructions:Any drug that causes alkalemia or academia should be avoided prior to collection.


Processing and Shipping

Shipping Instructions:Ship at refrigerated temperature.
Stability:Stability: 14 days refrigerated or frozen.
Test Performed at or Referral Lab Lab Sendouts  (Mayo Medical Laboratories)
Referral Lab number:RCITR


Interpretive

Reference Range:Not established.
Use:A low value represents a potential risk for kidney stone formation/growth. Patients with low urinary citrate, and new or growing stone formation may benefit from adjustments in therapy know to increase urinary citrate excretion. Very low levels suggest investigation for the possible diagnosis of metabolic acidosis (e.g., renal tubular acidosis). For children ages 5 to 18, a ratio of <0.176 mg citrate/mg creatinine is below the 5% reference range and considered low.


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