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Test Code SSH24 Supersaturation Profile, Self-Collect, 24 Hour, Urine


Ordering Guidance


 



Necessary Information


1. 24-Hour volume in milliliters is required.

2. Patient's height in centimeters and weight in kilograms are required if patient is younger than 18 years.

3. Patient's street address, city, state, ZIP (postal) code, country, and home phone are required (post-office [PO] boxes are not acceptable delivery locations)



Specimen Required


Patient Preparation:

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, the patient should wait at least 24 hours before starting collection.

-If a cholangiography (bile duct X-ray) has been performed, the patient should wait 7 days before starting collection.

-If patient has taken tablets for a gallbladder X-ray, the patient should wait 7 days before starting collection.

Supplies: SSH24 Home Collection Kit (T921)

Collection Container/Tube: 24-hour graduated urine container with no metal cap or glued insert

Submission Container/Tube: Plastic, 60-mL urine bottle

Specimen Volume: 35 mL

Collection Instructions:

1. Order test each time the patient is to collect a 24-hour urine specimen at home and mail the specimen directly to Mayo Clinic Laboratories.

2. Order should be placed a minimum of 3 days prior to desired date of collection.

3. Enter patient's address information for each order created, including street address (post office [PO] boxes are not acceptable delivery locations), city, state abbreviation, zip code, country, and home phone number.

4. For each order, the SSH24 Home Collection kit will be mailed directly to the patient for self-collection (delivery to a PO box will not occur). This kit contains instructions for how to properly collect and transport the specimen after collection.


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

-May aid in designing a treatment program

 

Aiding in identification of specific risk factors for stones using a 24-hour urine collection

 

Monitoring the effectiveness of therapy by confirming that the crystallization potential has indeed decreased

 

Evaluating kidney excretion of acid and urine pH

 

Estimating a patient's protein intake

Profile Information

Test ID Reporting Name Available Separately Always Performed
SSIN1 Supersaturation, 24 HR,Home Kit,U 1 No Yes
NAUT Sodium, 24 HR, U Yes, (order NAU) Yes
KUT Potassium, 24 HR, U Yes, (order KUR) Yes
CALUT Calcium, 24 HR, U Yes, (order CALU) Yes
MAGT Magnesium, 24 HR, U Yes, (order MAGU) Yes
CLUT Chloride, 24 HR, U Yes, (order CLU) Yes
POUT Phosphorus, 24 HR, U Yes, (order POU) Yes
SULFT Sulfate, 24 HR, U Yes, (order SULFU) Yes
CITT Citrate Excretion, 24 HR, U Yes, (order CITR) Yes
OXUT Oxalate, 24 HR, U Yes, (order OXU) Yes
UPHT pH, 24 HR, U Yes, (order PHU_) Yes
URICT Uric Acid, 24 HR, U Yes, (order URCU) Yes
CTUT Creatinine, 24 HR, U Yes, (order CTU) Yes
OSMUT Osmolality, 24 HR, U Yes, (order UOSMU) Yes
AMMT Ammonium, 24 HR, U Yes, (order AMMO) Yes
UNT Urea Nitrogen, 24 HR, U No Yes
PCRUT Protein Catabolic Rate, 24 HR, U No Yes
DEMO9 Patient Demographics No Yes

Reporting Name

Supersaturation, 24 HR, Home Kit, U

Specimen Type

Urine

Specimen Minimum Volume

25 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 14 days
  Frozen  14 days
  Ambient  72 hours

Reject Due To

pH <4.5 or pH >8.0 Reject

Reference Values

SUPERSATURATION REFERENCE MEANS (Delta G: DG)

Men:

Calcium oxalate: 1.89 DG

Brushite: 0.46 DG

Hydroxyapatite: 4.19 DG

Uric acid: 1.18 DG

 

Women:

Calcium oxalate: 1.59 DG

Brushite: -0.11 DG

Hydroxyapatite: 3.62 DG

Uric acid: 0.89 DG

 

OSMOLALITY, 24 HOUR, URINE

0-11 months: 50-750 mOsm/kg

≥12 months: 150-1,150 mOsm/kg

 

pH, 24 HR, U

4.5-8.0

 

SODIUM, 24 HOUR, URINE

≥18 years: 22-328 mmol/24 h

Reference values have not been established for patients who are younger than 18 years.

 

POTASSIUM. 24 HOUR, URINE

≥18 years: 16-105 mmol/24 h

Reference values have not been established for patients who are younger than 18 years.

 

CALCIUM, 24 HOUR, URINE

Males: <250 mg/24 h

Females: <200 mg/24 h

Reference values have not been established for patients who are younger than 18 years.

 

MAGNESIUM, 24 HOUR URINE

≥18 years: 51-269 mg/24 h

Reference values have not been established for patients who are younger than 18 years.

 

CHLORIDE, 24 HOUR URINE

≥18 years: 34-286 mmol/24 h

Reference values have not been established for patients who are younger than 18 years.

 

PHOSPHORUS, 24 HOUR, URINE

≥18 years: 226-1,797 mg/24 h

Reference values have not been established for patients who are younger than 18 years of.

 

SULFATE, 24 HOUR, URINE

7-47 mmol/24 h

 

CITRATE EXCRETION, 24 HOUR, URINE

0-19 years: Not established

20 years: 150-1,191 mg/24 h

21 years: 157-1,191 mg/24 h

22 years: 164-1,191 mg/24 h

23 years: 171-1,191 mg/24 h

24 years: 178-1,191 mg/24 h

25 years: 186-1,191 mg/24 h

26 years: 193-1,191 mg/24 h

27 years: 200-1,191 mg/24 h

28 years: 207-1,191 mg/24 h

29 years: 214-1,191 mg/24 h

30 years: 221-1,191 mg/24 h

31 years: 228-1,191 mg/24 h

32 years: 235-1,191 mg/24 h

33 years: 242-1,191 mg/24 h

34 years: 250-1,191 mg/24 h

35 years: 257-1,191 mg/24 h

36 years: 264-1,191 mg/24 h

37 years: 271-1,191 mg/24 h

38 years: 278-1,191 mg/24 h

39 years: 285-1,191 mg/24 h

40 years: 292-1,191 mg/24 h

41 years: 299-1,191 mg/24 h

42 years: 306-1,191 mg/24 h

43 years: 314-1,191 mg/24 h

44 years: 321-1,191 mg/24 h

45 years: 328-1,191 mg/24 h

46 years: 335-1,191 mg/24 h

47 years: 342-1,191 mg/24 h

48 years: 349-1,191 mg/24 h

49 years: 356-1,191 mg/24 h

50 years: 363-1,191 mg/24 h

51 years: 370-1,191 mg/24 h

52 years: 378-1,191 mg/24 h

53 years: 385-1,191 mg/24 h

54 years: 392-1,191 mg/24 h

55 years: 399-1,191 mg/24 h

56 years: 406-1,191 mg/24 h

57 years: 413-1,191 mg/24 h

58 years: 420-1,191 mg/24 h

59 years: 427-1,191 mg/24 h

60 years: 434-1,191 mg/24 h

>60 years: Not established

 

OXALATE, 24 HOUR, URINE

0.11-0.46 mmol/24 h

9.7-40.5 mg/24 h

 

URIC ACID, 24 HOUR, URINE

Male: ≥18 years: 200-1,000 mg/24 h

Female: ≥18 years: 250-750 mg/24 h

Reference values have not been established for patients who are younger than 18 years.

 

CREATININE, 24 HOUR, URINE

Male: ≥18 years: 930-2,955 mg/24 h

Female: ≥18 years: 603-1,783 mg/24 h

Reference values have not been established for patients who are younger than 18 years.

 

AMMONIUM, 24 HOUR, URINE

15-56 mmol/24 h

Reference values have not been established for patients who are younger than18 years or older than 77 years.

 

UREA NITROGEN, 24 HOUR, URINE

≥18 years: 7-42 g/24 h

Reference values have not been established for patients who are younger than 18 years.

 

PROTEIN CATABOLIC RATE, 24 HOUR, URINE

56-125 g/24 h

Day(s) Performed

Monday through Sunday

Report Available

2 to 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82340-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

84540-Urea Nitrogen

LOINC Code Information

Test ID Test Order Name Order LOINC Value
SSH24 Supersaturation, 24 HR, Home Kit, U 81232-1

 

Result ID Test Result Name Result LOINC Value
CRU24 Creatinine, 24 HR, U 2162-6
AMU24 Ammonium, 24 HR, U 25308-8
CAU24 Calcium, 24 HR, U 6874-2
CIT24 Citrate Excretion, 24 HR, U 6687-8
CLU24 Chloride, 24 HR, U 2079-2
KU24 Potassium, 24 HR, U 2829-0
MGU24 Magnesium, 24 HR, U 24447-5
NAU24 Sodium, 24 HR, U 2956-1
UOSMT Osmolality, 24 HR, U 2694-8
PCRUT Protein Catabolic Rate, 24 HR, U 93746-6
POU24 Phosphorus, 24 HR, U 2779-7
SUL24 Sulfate, 24 HR, U 26889-6
UNU24 Urea Nitrogen, 24 HR, U 3096-5
UPHT pH, 24 HR, U 27378-9
URC24 Uric Acid, 24 HR, U 3087-4
BSA1 Patient Surface Area 8277-6
OXM24 Oxalate, 24 HR, U (mmol/24 HR) 14862-7
616217 Calcium Oxalate Crystal 81623-1
616218 Brushite Crystal 101825-8
OXG24 Oxalate, 24 HR, U (mg/24 HR) 2701-1
HT6 Height (cm) 3137-7
WT6 Weight (kg) 29463-7
616219 Hydroxyapatite Crystal 81622-3
616220 Uric Acid Crystal 101827-4
SSDUR Collection Duration 13362-9
SSVOL Volume 3167-4
21060 Interpretation 69051-1
CS001 Patient Street Address No LOINC Needed
CS002 Patient City No LOINC Needed
CS003 Patient State No LOINC Needed
CS004 Patient Zip Code No LOINC Needed
CS005 Patient Country No LOINC Needed
CS006 Patient Home Phone No LOINC Needed