Test ID SSATR Supersaturation Profile, Random, Urine
Useful For
Diagnosis and management of patients with renal lithiasis:
-Predicting the likely composition of the stone, in patients who have a radiopaque stone, for whom stone analysis is not available. This may help in designing a treatment program
-Identifying specific risk factors for stones formation using a random urine collection
-Monitoring the effectiveness of therapy by confirming that the crystallization potential has indeed decreased
-Evaluation of kidney excretion of acid and urine pH
Profile Information
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
RRSUP | Supersaturation, Random, U | No | Yes |
NAUR | Sodium, Random, U | Yes, (order RNAUR) | Yes |
KURR | Potassium, Random, U | Yes, (order RKUR) | Yes |
CACR2 | Calcium, Random, U | Yes, (order CACR3) | Yes |
MAGR | Magnesium, Random, U | Yes, (order MAGRU) | Yes |
CLUR | Chloride, Random, U | Yes, (order RCHLU) | Yes |
POUR | Phosphorus, Pediatric, Random, U | Yes, (order RPHOC) | Yes |
SULFR | Sulfate, Random, U | No | Yes |
CITRR | Citrate Excretion, Peds, Random, U | Yes, (order CITRA) | Yes |
OXUR | Oxalate, Pediatric, Random, U | Yes, (order ROXUR) | Yes |
UPHR | pH, Random, U | No | Yes |
URCUR | Uric Acid, Random, U | Yes, (order RURC1) | Yes |
CTURR | Creatinine, Random, U | Yes, (order RCTUR) | Yes |
UOSMR | Osmolality, Random, U | No | Yes |
RAMCN | Ammonium, Random, U | Yes, (order RAMBO) | Yes |
Method Name
CITRR, RAMCN OXUR: Enzymatic
UOSMR: Freezing Point Depression
SULFR: High-Performance Ion Chromatography (HPIC)
MAGR: Colorimetric Endpoint Assay
CACR2: Photometric
POUR: Molybdic Acid
UPHR: pH Meter
NAUR, KURR, CLUR: Potentiometric, Indirect Ion-Selective Electrode (ISE)
CTURR: Enzymatic Colorimetric Assay
URCUR: Uricase
Reporting Name
Supersaturation, Peds, Random, USpecimen Type
UrineOrdering Guidance
A timed 24-hour urine collection is the preferred specimen for measuring and interpreting this profile to determine kidney stone risk factors (order SAT24 / Supersaturation Profile, 24 Hour, Urine. Random collections with individual analytes normalized to urinary creatinine may be of some clinical use in patients who cannot collect a 24-hour specimen, typically small children. Therefore, this test is offered on random collections for children less than 16 years old.
X-ray dyes and contrast media will affect uric acid test results.
-If a kidney X-ray with dye or computerized tomography (CT) scan with contrast has been performed, patient should wait a minimum of 1 day before starting collection.
-If a cholangiography (bile duct X-ray) has performed, patient should wait 7 days before starting collection.
-Urine must be collected before tablets have been taken for gallbladder X-ray, otherwise patient should wait 7 days before starting collection.
Additional Testing Requirements
Necessary Information
Patient's age is required.
Specimen Required
Supplies:
Urine Tubes, 10 mL (T068)
Aliquot Tubes, 5 mL (T465)
Container/Tube: 3 Plastic, 10-mL urine tubes and 4 plastic, 5-mL tubes
Specimen Volume: 40 mL
Collection Instructions:
1. Collect a random urine specimen and divide the urine into 6 tubes.
2. Refrigerate specimen after collection. Specimen pH should be between 4.5 and 8 and will stay in this range if kept refrigerated. Specimens with pH over 8 indicate bacterial contamination and testing will be canceled. Do not attempt to adjust pH as it will adversely affect results.
Specimen Minimum Volume
30 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Urine | Refrigerated | 14 days |
Reference Values
pH: 4.5 to 8.0
OSMOLALITY
0-11 months: 50-750 mOsm/kg
≥12 months: 150-1,150 mOsm/kg
AMMONIUM
18-77 years: 3-65 mmol/L
No reference values established for patient younger than 18 years and older than 77 years of age
CALCIUM
1 month-<12 months: 0.03-0.81 mg/mg creat
12 months-<24 months: 0.03-0.56 mg/mg creat
24 months-<3 years: 0.02-0.50 mg/mg creat
3 years-<5 years: 0.02-0.41 mg/mg creat
5 years-<7 years: 0.01-0.30 mg/mg creat
7 years-<10 years: 0.01-0.25 mg/mg creat
10 years-<18 years: 0.01-0.24 mg/mg creat
18 years-83 years: 0.05-0.27 mg/mg creat
Reference values have not been established for patients who are younger than1 month of age.
Reference values have not been established for patients who are older than 83 years of age.
MAGNESIUM
Magnesium/Creatinine Ratio:
1 month-<12 months: 0.10-0.48 mg/mg creat
12 months-<24 months: 0.09-0.37 mg/mg creat
24 months-<3 years: 0.07-0.34 mg/mg creat
3 years-<5 years: 0.07-0.29 mg/mg creat
5 years-<7 years: 0.06-0.21 mg/mg creat
7 years-<10 years: 0.05-0.18 mg/mg creat
10 years-<14 years: 0.05-0.15 mg/mg creat
14 years-<18 years: 0.05-0.13 mg/mg creat
18 years-83 years: 0.04-0.12 mg/mg creat
Reference values have not been established for patients who are younger than 1 month of age.
Reference values have not been established for patients who are older than 83 years of age
Performing Laboratory

CPT Code Information
82310-Calcium
82436-Chloride
82507-Citrate excretion
82570-Creatinine
83735-Magnesium
83935-Osmolality
83945-Oxalate
83986-pH
84105-Phosphorus
84133-Potassium
84300-Sodium
84392-Sulfate
84560-Uric acid
82140-Ammonium
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
SSATR | Supersaturation, Peds, Random, U | In Process |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
SULFR | Sulfate, Random, U | 2975-1 |
UOSMR | Osmolality, Random, U | 2695-5 |
UPHR | pH, Random, U | 2756-5 |
CITR1 | Citrate Concentration, Peds, Random, U | 2128-7 |
RCHLU | Chloride, Random, U | 2078-4 |
RCTUR | Creatinine, Random, U | 2161-8 |
RKUR | Potassium, Random, U | 2828-2 |
RNAUR | Sodium, Random, U | 2955-3 |
OXCON | Oxalate, Pediatric, Random, U | 15086-2 |
31241 | Calcium Oxalate Crystal | In Process |
POCON | Phosphorus, Pediatric, Random, U | 2778-9 |
URCO2 | Uric Acid, Random, U | 3086-6 |
MGCON | Magnesium, Random, U | 19124-7 |
CALC4 | Calcium, Random, U | 17862-4 |
RAMCN | Ammonium, Random, U | 1842-4 |
CACTR | Calcium/Creatinine Ratio | 9321-1 |
MGCTR | Magnesium/Creatinine Ratio | 13474-2 |
RATO6 | Uric Acid/Creat Ratio, Random, U | 3089-0 |
RATO5 | Phosphorus/Creatinine Ratio | 11141-9 |
31242 | Brushite Crystal | In Process |
OXCO2 | Oxalate Concentration | 2700-3 |
RATO8 | Citrate/Creatinine Ratio | 13722-4 |
RATO7 | Oxalate/Creatinine Ratio | 13483-3 |
31243 | Hydroxyapatite Crystal | In Process |
31244 | Uric Acid Crystal | In Process |
31245 | Sodium Urate Crystal | In Process |
31246 | Interpretation | 69051-1 |
NY State Approved
NoForms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.
Test Classification
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 US Food and Drug Administration.Day(s) Performed
Monday through Friday