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Specific Gravity Urine

SIM

20650 

CPT

81005 

Synonyms

none 

Specimen Type

Specimen of choice - Freshly void, first morning or random urine.  Catheterized Urine; Clean Catch Urine  

Container

Sterile Urine collection container

Collection Instructions

Clean Catch Instructions: 
1.  Clean external genitalia.  
2.  Begin voiding.  Let first portion of urine go into toilet.  
3.  Without interruption of urination process, collect the mid portion and allow the rest to pass into toilet.   
4.  Preferred for Urinalysis and Culture due to minimizing vaginal or terminal urethral flora contamination. 

Volume

5 ml preferred 
Min:  1 ml 

Additional Information

none

Patient Preparation

none

Specimen Processing Instructions

Refrigerate Urine

Transport Requirements

Refrigerated

Specimen Stability

Refrigerated: 24 hours 

Rejection Criteria

•  Insufficient volume 
•  Fecal contamination 

Reference Range

1.005 – 1.030

Critical Value

None 

Test Includes

Specific Gravity 

Methodology

Refractive Index using a Refractometer 

Testing Frequency

Daily, Monday - Sunday 

 

Reviewed By

Sandy Hammett 

Reviewed Date

4/6/2017 

Supplemental

 

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