Laboratory Test Information Guide

Details for Urinalysis

Test Name: Urinalysis
Alternate Name(s): Routine
R&M
Routine and Microscopic
Laboratory: Core
Specimen Type: Random urine
Collection Information: Refrigerated urines will be accepted up to 8 hours from collection to received.

MICU cannot be ordered separately, it must be ordered with a DIPU.

MICU is performed no more than once per day per patient. Subsequent MICU orders are cancelled.

Biochemistís approval is required if the ordering physician insists on performing additional MICU per day.

Minimum volume is 2.8 mL.

Hemolyzed urine samples that are not able to give results will be cancelled.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: As required
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
4 hours
Stat
1 hour
 
Reference Range: 
Leucocytes, urine:
0 cells/uL
Specific Gravity, urine:
1.003-1.029
pH, Urine:
4.5-7.5
Protein, Urine:
0.0-0.2 g/L
Glucose, Urine:
0.0-5.5 mmol/L
Ketones, Urine:
0.0-0.5 mmol/L
Blood, Urine:
Negative
Nitrite, Urine:
Negative
Effective Date: 2009-12-21
Revised Date: 2021-03-12
Critical Value:  
Interpretive Comments: Analysis includes macroscopic examination and chemical examination for protein, blood, glucose, ketones, specific gravity, nitrite, leukocytes and blood.

Results from any unrefrigerated urine sample >2 hours may not be accurate due to analyte stability.


A urine microscopic examination will not be performed on samples giving a normal dipstick result.
(Except research requests).

Microscopic reference range:

Some erythrocytes, leukocytes and casts are excreted by normal individuals, but they are seen only occasionally in urinary sediments examined microscopically.
* <5 Red Blood Cells per high power field are considered normal
* <5 White Blood Cells per high power field are considered normal
* Occasional Hyaline Casts per high power field are considered normal
Special Processing:  
Comments:  
Method of Analysis: Cobas 6500
Critical Information Required:  
Storage & Shipment: Urine specimen should be fresh and uncentrifuged.

Specimen must be received in laboratory within 2 hours of collection.

Refrigerate the specimen (do not freeze) if you anticipate delays in transportation to the Core Laboratory.

Specimens >8 hours old will auto cancel with auto appended comment, 'Sample stability limit exceeded'.

Urine specimens -> 8 hours old will not be analyzed.
System Codes: 
Cerner
DIPU -> MICU
 
Referred To:  

Questions? Comments? Contact Laura Gopaul