Citric Acid, 24-hour Urine

Last Modified: 2/20/2019 11:09:05 AM

Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements: 10.0 mL aliquot from a well mixed 24 hour Urine Collection in a Plastic Container (No Preservative)
Collection Instructions:

1. When starting the 24-hour period, urinate and discard (throw-away) this specimen. NOTE THE TIME
2. From that time on, collect all urine by urinating into a clean container and transfer into the provided container. 
3. Try to pass the last urine just prior to the end of the 24 hour period. Add this urine into the container. 
4. Urine Specimen should be kept refrigerated during and after collection. 

Do not include first morning specimen; collect all subsequent voiding's. The last sample collected should be the first morning specimen voided the following morning at the same time as the previous morning's first voiding. Specify 24-hour total volume on container and test requisition.

For patient collection instruction sheet see Addendum D
For Spanish patient collection instruction sheet see Addendum D
For Burmese patient collection instruction sheet see Addendum D
For Arabic patient collection instruction sheet see Addendum D

Minimum Volume: 1.0 mL
Transport & Storage: Temperature/Stability: 8 hours Ambient
30 days Refrigerated (Preferred)
60 days Frozen
Rejection Criteria: Acidified urines are unacceptable and will be rejected
Reference Range: 100-1300 mg/24 hr
Critical Ranges:  
Test Comments:  
Methodology: Spectrophotometry (SP)
Clinical Significance:  
Custom Panel: No


Turn Around Time: 1 to 2 days
Days Performed: Monday, Tuesday, Wednesday, Thursday, Friday
Sites Performed: Quest - Chantilly
PHL Test Code: CITR
EPIC Test Code: LAB377
Send Out Test Code: 11315
Alternate Test Names: Citrate
Included Tests:  
CPT Coding: 82507

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