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HelpTest Code CHUA Urinalysis Chemistry Screen
Specimen and Container/Tube
Specimen Type: Urine
Preferred Specimen: yellow top 10 mL conical tube
Other Acceptable specimens: sterile container, urine cup
Specimen Handling and Transport Instructions
UCMC Onsite Instructions: Collect specimen per standard collection procedure and send to laboratory immediately.
UCMC Offsite and UC MedLab Outreach Instructions: Collect specimen per standard collection procedure and send to laboratory immediately. Specimens must be received within 8 hours. If transport is delayed, refrigerate specimens prior to transport.
Rejection Criteria
- Common specimen rejected situations include: incorrect specimen type, insufficient volume, missing or incomplete specimen identifiers, incorrect specimen transport, or specimens outside stability limits.
- Frozen or heated specimens will be rejected
- Quantity not sufficient specimens are not suitable for testing and will be rejected
- Specimens collected with preservative will be rejected
- Grossly bloody or turbid specimens may not be suitable for testing
Reference Values
|
Analyte |
Age |
Sex |
Reference Range |
|
Specific gravity |
All |
Male and female |
1.016 – 1.022 |
|
pH |
All |
Male and female |
5 – 9 |
|
Leukocyte esterase |
All |
Male and female |
Negative |
|
Nitrites |
All |
Male and female |
Negative |
|
Protein |
All |
Male and female |
Negative |
|
Blood |
All |
Male and female |
Negative |
|
Glucose |
All |
Male and female |
Negative |
|
Ketones |
All |
Male and female |
Negative |
|
Bilirubin |
All |
Male and female |
Negative |
|
Urobilinogen |
All |
Male and female |
0.1 – 1.0 mg/dL |
Critical Values
Not applicable
Turnaround Time
Turnaround times are relative to the time the specimen is received in the test laboratory.
STAT Turnaround Time: 60 minutes
Routine Turnaround Time: 240 minutes
Testing Schedule: 24/7
CPT Codes
81003
LOINC Codes
COL 50553-7, CLARI 50552-9, SGU 50562-8, PHU 50560-2, CHLE 60026-2, CHNI 50558-6, PROU 50561-0, BLOU 57751-0, GLUU 53328-1, KETU 50557-8, BILU 50551-1, UROU 19161-9,
Volume
Preferred Volume: 10.0 mL
Minimum Volume: 3.0 mL
Specimen Stability
|
Storage Temperature |
Stability |
|
Room temperature (20 - 25°C) |
2 hours |
|
Refrigerated (2 - 10°C) |
24 hours |
|
Frozen (-20°C) |
not acceptable |
Collection Instructions
Collect specimen per standard laboratory collection procedures.
Test Components
Color, clarity, specific gravity, pH, leukocyte esterase, nitrites, protein, blood, glucose, ketones, bilirubin, urobilinogen.
Clinical Indications
- Assess the chemical constituents in the urine and the relationship to various diseases
- Detect presence of microscopic elements in urine
Methodology
Beckman Coulter iRICELL, reagent strip chemistry,
Synonyms/Search Keywords
UA, Dipstick, Urine macroscopic
Additional Information
Please note residual urine samples run on the Beckman Coulter Iricell cannot be used for other add-on testing.
Last Reviewed Date
9/5/2024