24 Hour Urine Preservative List
79 items.
| Test Directory 24 Hour Urine Preservative List 79 items. |
| Test name | Billing code | Test code (flexilab) | Collection Procedure | Specimen Processing | Alternate Specimens |
| 17 HYDROXYCORTICOSTEROIDS, URINE 24HR [ARUP] | 17OHQ | 17OHQ | Refrigerate during collection. | Aliquot 12 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container and freeze. Record total volume. | Random samples (but they are reported as mg/L with no reference ranges), samples refrigerated with preservatives. Sample pH must be 5-7. Mix well, add 1 gram boric acid/100 mL urine, adjust pH (with boric acid) to 5-7 and freeze. |
| 17-KETOSTEROIDS, URINE (FRACTIONATED) | 17-KETO FRAC | 17FRUQ | Add 25 mL of 50% acetic acid to a 24-hour dark plastic urine container. Collect a 24-hour urine specimen. Use 15 mL 50% acetic acid for children less than 5 years old. Refrigerate during collection. | Aliquot 50 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Adjust pH to 2-4. Store and transport refrigerated. Record total volume. | |
| 17-KETOSTEROIDS, URINE (FRACTIONATED) | 17KFUQ | 17KFUQ | Add 25 mL of 50% acetic acid to a 24-hour dark plastic urine container. Collect a 24-hour urine specimen. Use 15 mL 50% acetic acid for children less than 5 years old. Refrigerate during collection. | Aliquot 50 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Adjust pH to 2-4. Store and transport refrigerated. Record total volume. | |
| 17-KETOSTEROIDS, URINE 24HR [ARUP] | KETO | 17KSUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 4 mL of a well-mixed 24-hour urine collection into a leakproof plastic container. Record total volume and collection interval on transport tube and request form. | 24 hour urine preserved with 6N HCl to a pH of 2-4. A pH of LT 2 will decrease analyte stability. |
| 3-METHOXY-4-HYDROXYPHENYLGLYCOL (MHPG), URINE | MHPGUQ | MHPGUQ | Collect a 24-hour urine specimen in a 24-hour urine container (preferable polyethylene), no preservative. Refrigerate during collection. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof plastic container. Record collection time and total volume. Store and transport refrigerated. | |
| 5-HIAA, URINE 24HR | 5-HIAA | HIAAUQ | Collect a 24-hour urine specimen. Refrigerate during collection. | Aliquot 25 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Upon receipt, adjust pH to 1-4 with 6N HCl. Record collection time and total volume. | 24-hour urine collected with 10 grams of boric acid or 25 mL of 50% acetic acid and then pH to 1-4 with 6N HCl. |
| ALDOSTERONE, URINE 24HR [ARUP] | ALDOSTERONE-U | ALDUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. Add 1 gram boric acid per 100 mL urine. | Aliquot 4 mL of a well-mixed 24 hour urine collection into a leakproof plastic container and freeze. Record total volume. | Preserved urine; adjust the pH of the sample to 2-4 with 6M HCL or 50% acetic acid. |
| ALUMINUM, URINE 24HR [ARUP] | ALU-U | ALUUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container or a random urine collection. Refrigerate during collection. | Aliquot 8 mL of a well-mixed 24-hour urine collection or random urine collection into a leakproof plastic urine container. Store and transport refrigerated. ARUP studies indicate that refrigeration of urine alone, during & after collection preserves specimens adequately if tested within 14 days of collection. Record total volume and collection time. Submit specimen in two ARUP Trace Element-Free Transport Tubes (43116). | |
| AMINO ACIDS, URINE (QUANTITATIVE) | AAU.QUANT | AAURQ | Collect a 24-hour or random urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour or random urine collection into a leakproof plastic urine container. Record total volume. Store and transport frozen. | |
| AMINOLEVULINIC ACID,URINE 24HR [ARUP] | ALA-U | ALAUQ | Collect a 24-hour or random urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 4 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Protect from light during collection, storage and transport. | |
| AMYLASE, URINE (QUANTITATIVE) | AMYUQ | AMYUQ | Collect a 24-hour in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour collection into a leakproof plastic urine container. Record total volume and collection period. Store and transport refrigerated. | Specimens that have been frozen. |
| ANDROSTERONE, URINE 24HR [MAYO] | ANDR-U | ANDRUQ | Add 25 mL of 50% acetic acid to a 24-hour dark plastic urine container. Use 15 mL 50% acetic acid for children less than 5 years old. Collect a 24-hour urine specimen. Refrigerate during collection. | Aliquot 50 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Adjust pH to 2-4. Record total volume. | |
| ARSENIC, URINE 24HR | ARS-U | ARSUQ | Add 20mL 6N nitric acid to a 24-hour dark plastic urine container at the start of collection. Collect a 24-hour urine specimen. Use only SAGE, GUARD, P-Splitter or HEDWIN jugs. Pretest other jugs. Do not use VOLLRATH jugs. Refrigerate during collection. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof Trace element tube and pH to 2 using 6N nitric acid. Record collection time and total volume. | May add 20 mL 6N HNO3 at end of collection. Adjust pH to 2. This procedure may be done after the specimen has been received at PAML, however, it must be shipped in the original collection container & performed before it is aliquoted. Entire collection should be kept refrigerated and acid added to entire collection within 20 hours. |
| ARSENIC, URINE 24HR REFLEX TO FRACTIONATED [ARUP] | ARSURF | ARSURF | Collect a 24 hour urine in a trace-metal free urine container and refrigerate during collection. | Aliquot 8 mL of a well-mixed 24-hour urine collection into a leakproof trace-metal free urine container. Record total volume and collection time. | Random urine |
| ARYLSULFATASE A, URINE 24HR [ARUP] | ARYSUQ | ARYSUQ | Collect a 24-hour or random urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour or random urine collection into a leakproof plastic urine container. Record total volume and time of collection. | |
| BENCE JONES PROTEIN, URINE 24HR [ARUP] | BJKLQ | BJKLQ | Collect a 24-hour urine specimen in a leakproof plastic urine container. | Submit 2-4 mL aliquots from a well-mixed 24-hour collection. Refrigerate during collection. Submit in two leakproof plastic urine containers. | Random or urine supernate. |
| CALCIUM, URINE 24HR | CAL-U | CAUQ | Add 30 mL 6N HCl to a 24-hour dark plastic urine container. Collect a 24-hour urine specimen. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Adjust pH to between 1.0-2.0 with 6N HCl. Record collection time and total volume. | For timed urine samples, add 1 mL 6N HCL/100 mL urine at end of collection as soon as possible. Adjust pH 1.0-2.0 using HCL and let stand one hour before analysis. |
| CATECHOLAMINES FRACTIONATED, URINE 24HR | CAT.UF | CATUQ | Add 25 mL 6N HCl to a 24-hour dark plastic urine container at the start of the collection. Collect a 24-hour urine specimen. Refrigerate during collection. At the end of the collection adjust the pH to 1-3 with 6N HCL. | Aliquot 30 mL of a well-mixed 24-hour urine collection into a leakproof plastic container. Adjust pH to 1-3 with 6N HCl. Record collection time and total volume. Freeze within 8 hours of collection. | 24-hour urine collected with 25 mL of 50% acetic acid or collected with no preservative, refrigerated during collection and pH adjusted to 1-3 upon receipt and frozen. |
| CHLORIDE, URINE 24HR | CL-U | CLUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 50 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Frozen specimens. |
| CHROMIUM, URINE 24HR [ARUP] | CHROM-U | CHRMUQ | Collect a 24-hour urine specimen or random urine collection. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour urine collection or random urine collection into a leakproof plastic urine container. ARUP studies indicate that refrigeration of urine alone, during and after collection preserves specimens adequately if tested within 14 days of collection. Record total volume and collection time. Submit specimen in two ARUP Trace Element-Free Transport Tubes (43116). | |
| CITRIC ACID, URINE 24HR [ARUP] | CITQU | CITQU | Add 10 mL 6N HCl to a 24-hour dark plastic urine container. Collect a 24-hour urine specimen. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Adjust pH to 2 or less with 6N HCl. Record total volume. | Random urine specimen. |
| COBALT, URINE 24HR [ARUP] | COBAUA | COBAUA | Collect a random or 24-hour urine collection in a leakproof plastic urine container. Refrigerate during collection. | Submit 10 mL aliquot from a well-mixed urine collection inot two trace element-free transport tubes. | |
| COPPER, URINE 24HR [ARUP] | COPPER.UR | COPPUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container or a random urine. Refrigerate during collection. | Aliquot 8 mL of a well-mixed 24-hour urine collection or random urine collection into a leakproof plastic urine container. ARUP studies indicate that refrigeration of urine alone, during and after collection preserves specimens adequately if tested within 14 days of collection.Record total volume and collection time. Submit specimen in two ARUP Trace Element-Free Transport Tubes (43116). | |
| CORTISOL & CORTISONE, FREE URINE (QUANTITATIVE) | CCFUQ | CCFUQ | Collect a 24-hour urine specimen. Refrigerate during collection. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record total volume. Store and transport refrigerated. | |
| CORTISOL CALCULATED FREE, URINE 24HR | COR-U | UFCUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Specimen collected with 1 gm boric acid. |
| CORTISOL FREE, URINE 24HR LC-MS/MS [ARUP] | CUFAR | CUFAR | Collect a 24-hour urine in a 24-hour leak-proof plastic urine container. Refrigerate during collection. | Aliquot 4 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Random urine specimens |
| CORTISOL/CORTISONE FREE, URINE 24HR [ARUP] | CORUFA | CORUFA | Collect a 24-hour urine specimen. Refrigerate during collection. | Aliquot 4 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record total volume and collection time interval. | Random urine specimen |
| CREATINE, URINE 24HR [QUEST] | CREATINE-U | CRTUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 3 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container and freeze. Record total volume. | |
| CREATININE CLEARANCE | CRE CL | CRCL | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Separate serum from cells and place in separate plastic tube. Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Lithium heparin plasma (green top tube) and urines preserved in the boric acid tubes (BD C&S tubes). |
| CREATININE, URINE 24HR | CRE-U | CREUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Frozen specimens and urines preserved in the boric acid tubes (BD C&S tubes). |
| CYSTINE, URINE 24HR [ARUP] | CYUQ | CYUQ | Collect a random urine or 24 hour urine in leakproof plastic urine container. Avoid dilute urine. | Aliquot 8 mL of a random or 24 hour urine collection into a leakproof plastic urine container and freeze immediately.  | |
| DHEA, URINE | DHEAU | DHEAU | Collect a 24-hour urine specimen. Refrigerate during collection. Do not use preservatives. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container and freeze. Store and transport frozen. Record total volume and collection period. | |
| ELECTROPHORESIS, PROTEIN, URINE (REFLEXIVE) | PEPUIF | PEPUIF | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 100 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | |
| GLOMERULAR FILTRATION PROFILE | GFP24 | GFP | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Separate serum from cells and place in separate plastic tube. Aliquot 100 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. Store and transport both specimens refrigerated. | Lithium heparin plasma (green top tube) and 1 mL urine. |
| GLUCOSE, URINE 24HR | GLU-U | GLUUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Frozen specimens. |
| GOLD, URINE | GOLD-U | GOLDUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container with no preservative or metal cap or glued inserts. | Aliquot 7 mL of a well-mixed 24-hour urine collection into a plastic container with no metal cap or glued inserts. Refrigerate within 4 hours of completion of collection. Record total volume and hours of collection. Store and transport refrigerated. | |
| HEAVY METALS, URINE 24HR | HVY-U | HMUQ | Add 20 mL 6N nitric acid to a 24-hour dark plastic urine container at the start of the collection. Collect a 24-hour urine specimen. Use only SAGE, SSA jug from Fisher, GUARD, P-Splitter or HEDWIN jugs. Pretest other jugs. Do not use VOLLRATH jugs. Refrigerate during collection. | Aliquot 50 mL of a well-mixed 24-hour urine collection into a leakproof plastic container. Record collection time and total volume. Adjust pH to 2. | May add 20 mL 6N HNO3 at end of collection. Adjust pH to 2. This procedure may be done after the specimen has been received at PAML, however, it must be shipped in the original collection container & performed before it is aliquoted. Entire collection should be kept refrigerated and acid added to entire collection within 20 hours. |
| HISTAMINE, URINE | HIST-U | HISTUR | Collect a 24-hour or random urine collection in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 4 mL of a well-mixed 24-hour or random urine collection in a leakproof plastic urine container and freeze. Record total volume and collection period. Store and transport frozen. | Samples preserved with HCl if frozen immediately. |
| HOMOCYSTINE, URINE 24HR [ARUP] | HOMO-U | HOMOUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record total volume. | |
| HYDROXYPROLINE, URINE 24HR [ARUP] | HYDROXYPROLINE.T | HPTUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record total volume and collection time. | |
| IMMUNOFIXATION, BLOOD AND URINE 24HR | IEP.SU | IEPSUQ | See component tests. | Record collection time and total volume. See component tests. | |
| IMMUNOFIXATION, URINE 24HR | IEP-U | IEPUQ | Collect a 24-hour urine collection in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 100 mL of a well-mixed 24-hour urine collection in a leakproof plastic urine container. Record collection time and total volume. | |
| IODINE, URINE 24HR [MAYO] | IODUQM | IODUQM | Collect in a leakproof plastic urine container with no metal caps or glued inserts. | Aliquot 10 mL of the 24-hour urine collection. This must be refrigerated within 4 hours of completion of the 24 hour collection. | |
| IRON, URINE 24HR [MAYO] | IRN-U | IRONUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container with no preservative or metal caps or glued inserts. | Aliquot 10 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container with no metal caps or glued inserts. Refrigerate within 4 hours of completion of collection. Record total volume and collection period. | |
| LAXATIVE SCREEN, URINE | LAX | LAXUR | Collect a 24-hour or random urine specimen. | Aliquot 20 mL of a 24-hour or random urine specimen. Store and transport frozen. | |
| LEAD, URINE 24HR | LEAD-U | PBUQ | Add 20 mL 6N nitric acid to a 24-hour dark plastic urine container at the start of collection. Collect a 24-hour urine specimen. Use only SAGE, GUARD, P-Splitter or HEDWIN jugs. Pretest other jugs. Do not use VOLLRATH jugs. Refrigerate during collection. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof Trace Element Free Tube. Record collection time and total volume. Adjust pH to 2 with 6N nitric acid. | May add 20mL 6N HNO3 at end of collection. Shake well and let stand for 2 hours shaking every 15 minutes. Adjust pH to 2. |
| MAGNESIUM, FECAL | MGFEC | MGFEC | Collect a 24-hour stool. | Aliquot 5 grams of a well-mixed 24-hour stool in a clean, leakproof plastic container. Store and transport refrigerated. Stool must be liquid. Do not add saline or water to liquefy specimen. | Random stool collection |
| MAGNESIUM, URINE 24HR | MAG-U | MGUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 25 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Adjust pH to 1 with 6N HCl. Record collection time and total volume. | Frozen specimens. |
| MANGANESE, URINE 24HR [ARUP] | MAN-U | MANUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container or random urine collection. Refrigerate during collection. | Aliquot 8 mL of a well-mixed 24-hour urine collection or random urine collection into a leakproof plastic urine container. ARUP studies indicate that refrigeration of urine alone, during and after collection preserves specimens adequately if tested within 14 days of collection. Record total volume and collection time. Submit specimen in two ARUP Trace Element-Free Transport Tubes (43116). | |
| MELANIN, URINE | MELURS | MELURS | Collect a random or 24-hour urine specimen. Refrigerate during collection. Protect from light. | 4.5 mL aliquot of a random or 24-hour urine specimen. Protect from light. CRITICAL FROZEN. Separate samples must be submitted when multiple tests are ordered. Store and transport frozen. | |
| MERCURY, URINE 24HR | MERC-U | HGUQ | Add 20 mL 6N nitric acid to a 24-hour dark plastic urine container at the start of collection. Collect a 24-hour urine specimen. Use only SAGE, GUARD, P-Splitter or HEDWIN jugs. Pretest other jugs. Do not use VOLLRATH jugs. Refrigerate during collection. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof Trace Element Free tubes. Record collection time and total volume. Adjust pH to 2 with 6N nitric acid. | May add 20 mL 6N nitric acid at end of collection. Adjust pH to 2. This procedure may be done after the specimen has been received at PAML, however, it must be shipped in the original collection container & performed before it is aliquoted. Entire collection should be kept refrigerated and acid added to entire collection within 20 hours. |
| MERCURY, URINE 24HR [ARUP] | HGUQT | HGUQT | Collect a 24 hour urine in a trace-metal free, dark plastic urine container. Refrigerate during collection. | Aliquot 8 mLs well mixed, 24 hour urine into trace-metal free, leakproof, plastic urine container. Record collection time and total volume. | Random urine |
| METANEPHRINES FRACTIONATED, URINE 24HR | MET.FRAC | METUQ | Add 25 mL 6N HCl to a 24-hour dark plastic urine container at the start of the collection. Refrigerate during collection. | Aliquot 30 mL of a well-mixed preserved 24-hour urine collection into a leakproof plastic urine container. Adjust pH to 1-3 and freeze. Record collection time and total volume. | 24-hour urine collected with 10 grams of boric acid, or 25 mL of 50% acetic acid and then pH to 1-3 with 6N HCl. Specimens may also be refrigerated during collection without a preservative and then pH adjusted to 1-3 with 6N HCl upon receipt. |
| METANEPHRINES TOTAL, URINE 24HR | MET | METTUQ | Add 25 mL 6N HCl to 24-hour dark plastic urine container. Collect a 24-hour urine specimen. Refrigerate during collection. | Aliquot 30 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Adjust pH to 1-3 with 6N HCl and freeze. Record collection time and total volume. | 24-hour urine collected with 10 grams of boric acid, or 25 mL of 50% acetic acid and then pH to 1-3 with 6N HCl. Specimens may also be refrigerated during collection without a preservative and then pH adjusted to 1-3 with 6N HCl upon receipt. |
| METHYLMALONIC ACID, URINE (QUANTITATIVE) | METMAL.U | MMAUQ | Collect a 24-hour or random urine in a 24-hour dark plastic urine container. Refrigerate during collection. On random urines collect the second voided specimen after overnight fast. | Aliquot 5 mL of a well-mixed 24-hour or random urine collection into a leakproof plastic urine container. Record total volume and collection period. Store and transport frozen. | |
| METHYLMALONIC ACID, URINE 24HR [ARUP] | MAUQ | MAUQ | Collect a 24-hour or random urine in a 24-hour dark plastic urine container. Refrigerated during collection. | Aliquot 4 mL of a well-mixed 24-hour or random urine collection into a leakproof plastic urine container. Record total volume and collection period. | |
| MICROALBUMIN, URINE 24HR | M.ALB | MALBUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container with no preservative. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hours urine collection into a leakproof plastic urine container. Record collection time and total volume. | Urines preserved in the boric acid tubes (BD C&S tubes). |
| MICROALBUMIN-CREATININE RATIO | MALBCR | MCUC | 40 mL aliqout of random, first morning or 24-hour urine collection in a leakproof plastic urine container for random specimens or a 24-hour dark plastic urine container for 24-hour collections. Refrigerate during collection. | Store and transport refrigerated. | Urines preserved in the boric acid tubes (BD C&S tubes). |
| MYOGLOBIN, QUANTITATIVE, URINE | MYOGLOBIN-U | MGNPUR | Collect a 24-hour or random urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 1 mL of a well-mixed 24-hour or random urine collection into a leakproof plastic urine container. Adjust pH to 8-9 immediately after collection by adding 10% Na2CO3. Store and transport refrigerated. | |
| NICKEL, URINE 24HR [ARUP] | NICUQ | NICUQ | Collect a 24-hour or random urine in a 24-hour plastic urine container. Refrigerate during collection. | Aliquot 8 mL of a well-mixed 24-hour or random urine collection into a leakproof plastic urine container. ARUP studies indicate that refrigeration ofurine alone, during and after collection preserves specimens adequately if tested within 14 days of collection.Submit specimen in two ARUP Trace Element-Free Transport Tubes (43116). | |
| ORGANIC ACIDS, URINE | ORAU | ORAU | Collect a 24-hour or random urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour or random urine collection into a leakproof plastic urine container. Record total volume. Store and transport frozen. | |
| ORGANIC ACIDS, URINE | ORGAU | ORGAU | Collect a 24-hour or random urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 10 mL of a well-mixed 24-hour or random urine collection into a leakproof plastic urine container. Record total volume. Store and transport frozen. | |
| OSMOLALITY, URINE 24HR | OSMOLAL-U | OSMUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Do not allow to sit at room temperature. Refrigerate during collection. | Aliquot 1 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | |
| OXALATE, URINE 24HR | OXALATE-UR | OXUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 25 ml of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Adjust pH to 1-2 with 6N HCL within 24 hours of the end of the collection period. Note date and time pH is adjusted. Record total volume and collection period. | |
| PHOSPHORUS, URINE 24HR | PHO-U | PHOSUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine collection. Adjust pH to less than 3 with 6N HCl. Record collection time and total volume. | Frozen specimens. |
| PORPHOBILINOGEN, URINE 24HR | PBG | PBGUQ | Collect 24-hour urine in a dark plastic urine container. Protect from light. Refrigerate during collection. | Aliquot 100 mL of a well-mixed 24 hour urine collection in a leakproof dark plastic urine container. Upon receipt adjust pH to 8-9 with 5% NaOH. Protect from light. Record collection time and total volume. | 24 hour urine preserved with 7.5 grams sodium carbonate at the start of the collection. Adjust pH to 8-9. If pH less than 8, use 5% NaOH. |
| PORPHYRIN AND PORPHOBILINOGEN, URINE 24HR | POR.PBG | PPBGUQ | Collect a 24-hour urine specimen. Collect in brown urine bottle. Protect from light. Refrigerate during collection. | Aliquot 100 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Upon receipt adjust pH to 8-9 with 5% NaOH. Record collection time and total volume. Protect from light. | 24 hour urine preserved with 7.5 grams sodium carbonate at the start of the collection and then adjusted to pH 8-9. If pH is greater than 9 use 6N HCl. If pH is less than 8 use 5% NaOH. |
| PORPHYRINS, URINE 24HR | POR | PORUQ | Collect a 24-hour urine specimen in a brown bottle (specimen must be protected from light). Refrigerate during collection. | Aliquot 100 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container, upon receipt adjust pH to 8-9 with 5% NaOH. Protect from light. Record collection time and total volume. | 24 hour urine preserved with 7.5 grams sodium carbonate at the start of the collection and then adjusted to pH 8-9. If pH is greater than 9, then use 6N HCl. If pH is less than 8, use 5% NaOH. |
| POTASSIUM, URINE 24HR | POT-U | KUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Frozen specimens. |
| PROTEIN ELECTROPHORESIS, URINE 24HR | ELP-U | PELPUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 100 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | |
| PROTEIN, URINE 24HR | PRO-U | PROUQP | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Specimen can be frozen, however, do not allow to thaw and refreeze. |
| SODIUM, URINE 24HR | SOD-U | NAUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 40 mL of a well-mixed 24-hour urine collection in leakproof plastic urine container. Record collection time and total volume. | Frozen specimens. |
| TESTOSTERONE, URINE (QUANTITATIVE) | TES-U | TESUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Frozen aliquot 2 mL of a well-mixed refrigerated 24 hour urine collection into a leakproof plastic urine container. Record total volume. Store and transport frozen. | Refrigerated 24 hour urine preseved with boric acid (1 gram per 100 mL urine) and samples previously preserved with HCl if stored and transported refrigerated. |
| URATE, URINE 24HR | UCA-U | URICUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container containing 10 mL of 5% NaOH. Maintain specimen at room temperature during collection. At the end of collection adjust pH to greater than 7 with 5% NaOH. | Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Refrigerated specimens. |
| UREA CLEARANCE | URCLE | URCLE | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. Collect serum at the same time as urine collection. | Separate serum from cells and place in separate plastic tube. Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. Store and transport both specimens refrigerated. | Frozen urine specimens, EDTA or sodium heparin plasma (lavender or green top tubes). |
| UREA, URINE 24HR | UREA-U | UREAUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Refrigerate during collection. | Aliquot 40 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Record collection time and total volume. | Frozen specimens. |
| VANILLYLMANDELIC ACID & HOMOVANILLIC ACID URINE (QUANTITATIVE) | HVVMUQ | HVVMUQ | Collect a 24-hour urine in a 24-hour dark plastic urine container. Must refrigerate during collection. | Aliquot 5 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Store and transport refrigerated. | Samples that have been adjusted to pH 2-3 with 6M HCl. Also random urine specimens. |
| VMA, URINE 24HR | VMA | VMAUQ | Collect a 24-hour urine specimen. Refrigerate during collection. | Aliquot 50 mL of a well-mixed 24-hour urine collection into a leakproof plastic urine container. Upon receipt adjust pH to 2 with 6N HCl. Record collection time and total volume. | 24 hour urine collection preserved with 25 mL 6N HCl at start of collection, then adjust to pH to 2 with 6N HCl. 50% acetic acid or 10 grams of boric acid may also be used as preservatives. Toddlers: use 5 mL volume for preservative or 2 grams boric acid. Babies: use 2 mL volume of preservative or 1 gram boric acid. |
| ZINC, URINE 24HR [ARUP] | ZNCUQ | ZNCUQ | Collect a 24-hour urine specimen in a 24-hour plastic urine container or a random urine collection. Refrigerate during collection. | Aliquot 8 mL of a well-mixed 24-hour urine collection or random urine collection into a leakproof plastic urine container. ARUP studies indicate that refrigeration of urine alone, during and afer collection preserves specimens adequately if tested within 14 days of collection. Record total volume and collection time. Submit specimen in two ARUP Trace Element-Free Transport Tubes (43116). |