Litholink 24 hour urine

Purpose of Urine Tests Urine tests, or urinalysis, is a routine test patients undergo as part of a standard preventive exam. A urinalysis is typical during an annual checkup as it helps the doctor screen for, diagnose and monitor varied diseases, such as kidney ailments, urinary tract infections (UTIs), liver disorders and diabetes.

Your doctor doesn’t have to use Litholink. Many doctors are contracted with a specific lab and have no choice in where they order their 24-hour urine collections. Just get the darn thing ordered, no matter where it comes from. Here is what should ideally be tested for in the 24-hour urine collection (found from Litholink). Volume; Calcium ...Mar 4, 2024 · The average patient in the Medicare-Litholink cohort performed 1.65 24-hour urine collections (standard deviation, 1.12). The median time to follow-up between index stone event to patients’ first 24-hour urine collection was 56 [IQR: 32 – 96] days. Twenty five percent of patients performed two, and 14.1% performed three or more. The urinary tract is the body’s drainage system for removing urine, which is composed of wastes and extra fluid. In order for normal urination to occur, all body parts in the urinary tract need to work together in the correct order. ... Hours: 8:30 a.m. to 5 p.m. ET, Monday - Friday Email: [email protected] Phone: + 1-800-860-8747. TTY ...Purpose: We determined the adequacy of a single 24-hour urine sample for evaluating patients for medical renal stone prevention. Materials and methods: A total of 459 patients from a private urology practice specializing in the treatment of urolithiasis and 683 from a university stone research clinic provided 2 and 3, 24-hour urine samples, respectively.Purpose: We determined the adequacy of a single 24-hour urine sample for evaluating patients for medical renal stone prevention. Materials and methods: A total of 459 patients from a private urology practice specializing in the treatment of urolithiasis and 683 from a university stone research clinic provided 2 and 3, 24-hour urine samples, respectively.

Hydroxyindoleacetic acid (5HIAA) If the 24-hour urine test will measure hydroxyindoleacetic acid (5HIAA), it is best to avoid these foods for the 3 days before your 24-hour urine test. Be careful to avoid these foods and any food that contains pieces of these foods such as juice, yogurt, cheese or sauces. Bananas. 24-hour collection. 5. It is preferable to keep urine container either in a refrigerator or in an ice chest. 6. Deliver urine container back to your physician’s office as soon as possible following collection for 24 hours. (The same morning your collection is completed if at all possible.) 7. If a second 24-hour collection has been ordered ... Purpose of Urine Tests Urine tests, or urinalysis, is a routine test patients undergo as part of a standard preventive exam. A urinalysis is typical during an annual checkup as it helps the doctor screen for, diagnose and monitor varied diseases, such as kidney ailments, urinary tract infections (UTIs), liver disorders and diabetes.LITHOLINK 24-HOUR URINE PANEL (KIDNEY STONE) LAB11005 Specimen 24-hour urine Volume Full 24-hour collection required. • Follow instructions provided with the kit. • Preservative required to be added at beginning of collection. • Do not refrigerate/keep at room temperature. • 50 mL aliquot of 24-hour urine collection needed for testing. ...The constituents to be measured in a 24-h urine specimen are defined by the needs of diagnosing disorders and for planning treatment with recurrent stone formers. The volume of the 24-h urine specimen is an important measurement, and counselling stone formers to increase urine volume is a common and effective form of treatment . For …Understand why it is important for people living with cystinuria to monitor their cystine levels with 24-hour urine cystine testing.

Founded Date 1994. Founders Fredric L. Coe. Operating Status Active. Company Type For Profit. Phone Number (312)243-0600. Litholink Corp providing the highest level of customer support for our 24-hour urine testing services. Our national infrastructure allows for a seamless, integrated service that makes it easier for clients to manage their ...Incorrect collection and preservation of 24-hour urine collections are two of the most frequent lapses in urine collections. The 24-hour urine specimen should be submitted in a chemically clean, properly labeled urine container provided by Labcorp. (Patients should not be allowed to submit urine specimens in their own “clean” jars.)Purpose of Review The purpose of this review paper is to describe the 24-h urine collection in terms of its utility, collection process, and common problems with its acquisition. Recent Findings Although 24-h urine collections are standard of care for high-risk stone formers, several nuances in test acquisition including inaccurate urine … with hypercalciuria. This type of drug lowers urine calcium, and prevents stones from forming. Remember that diets high in sodium and protein raise the amount of calcium in your urine. The thiazide is trying to reduce the calcium in your urine. This drug will be much more effective if you are NOT eating a diet that is high in salt and protein. Most doctor's offices do not have the ability to run a 24-hour urine test for kidney stones. Many doctors use a company called "Litholink" for 24-hour urine tests. Litholink's online portal allows doctors to easily order the test, send you a testing kit, and get your results. All you have to do is send in your urine sample! LearnToxins such as lead interfere with heme synthesis and cause porphyrinuria. Increased urine excretion of uroporphyrinogen, uroporphyrin, and coproporphyrin occurs in porphyria cutanea tarda. It is found in (1) middle-aged men who like ethanol, (2) young women on oral contraceptives, and in (3) subjects on dialysis.

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24-Hour Urine Test. A 24-hour urine test checks the health of your kidneys. Your provider gives you a container for you to collect your pee in for 24 hours, then you bring the container to a lab for testing. Providers can use a 24-hour urine test to look for signs of kidney disease, high blood pressure, certain cancers and causes of kidney stones. form or lab order directly to Litholink we will have it on Þ le. Expect your At -Home Kit to arrive 5-7 business days from the date the order was placed. Your At-Home Kit will include everything you need to complete your 24-hour urine collection(s). Detailed instructions, collection supplies, return shipping box, and a Location and Hours of Service; Información en Español; Ask a Librarian; Awareness Months; Patient Education Events; Skin Cancer Resource Center. Skin Cancer Resource Center; ... Collecting a 24-hour Urine Sample (Spanish) File. Collecting-a-24-Hour-Urine-Sample-2021-SP.pdf. SHARE THIS PAGE: Footer first menu. ABOUT US. About … 24-hour urine: Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine, including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). The urine container may be kept at room temperature or refrigerated during collection. Measure and record total urine volume. Genetics Test Information. This test provides a biochemical diagnosis of cystinuria through the measurement of cystine, lysine, ornithine, and arginine. Method Name. Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS) NY State Available. Yes. Reporting Name. Cystinuria Profile, QN, 24 hour. Aliases.

Diet Resources. Depending on the type of kidney stone, a change of diet may be necessary to help reduce the risk of forming additional stones. Here you will find information on the different diet changes often prescribed. For the most recent database providing the content of oxalate in foods, please refer to the following directory/listing ...My question reflected my confusion trying to understand my “LithoLink” 24-hour urine report, which has my pH of 6.491 indicating “increased risk for stone formation”, with a reference range of 5.8-6.2. I thought that the higher the number, the more alkaline, the less stone formation risk, with 7 the point of neutrality–so I thought I ...Shipping Instructions for your Litholink Test. Three Easy Steps. Use the three steps below to schedule your one-time pickup: Step 1. Call FedEx at 1.800.463.3339. You will be askeda few questions. FedEx:“In a few words, please tell me what you’re calling about...”. Your Answer: FedEx Express® return pickup.I know that the Litholink 24 hour urine sample for cystine stones is recommended, but now often should this be done a year. ... to be cystine, and it looks that way, so let’s assume the lab is right. Cystinuria needs treatment. If you cannot get 24 hour urine cystine excretion measured – remarkable given that Germany is a very highly ...Welcome to Litholink. We are proud to offer you the only test that directly measures the saturation of cystine in urine. This test allows your physician to know if there is enough ... 2 red-topped tubes of liquid urine preservative per 24 hour collection 2 clear-topped (short) tubes of urine preservative crystals per 24 hour collection ...Litholink 24 Hour Urine Litholink 24 Hour Urine « Find Another Test; Test Details. Soft Order Code. LLINK. Laboratory. Sendout. Reference Laboratory. Labcorp .The search terms included were kidney stones, urolithiasis, nephrolithiasis, medical management, prevention, 24-hour urine, Litholink and randomized clinical trial. We reviewed relevant systematic reviews and clinical guidelines for studies relating to the usefulness of the 24-hour urine collection.The 24 hour urine supersaturations we measure in our patients, the numbers patients can see for themselves in their own laboratory reports mean a very lot. They bring to my mind the ancient discipline of celestial navigation which, howsoever crude, guided those early bold sea captains round the Cape and the Horn, and over the whole …Labcorp test details for Litholink 24-Hour Urine, KS. Find a Lab View Test Results Pay one Bill Shop for TestsSpecimen Required: Collect: 24-hour urine. Refrigerate during collection or add 5 mL of diazolidinyl urea (Germall) as preservative at start of collection. Specimen Preparation: From a well-mixed 24-hour collection, transfer 4 mL urine to an ARUP Standard Transport Tube. (Min: 1 mL). Collection duration and urine volume must be provided for ...Purpose of Urine Tests Urine tests, or urinalysis, is a routine test patients undergo as part of a standard preventive exam. A urinalysis is typical during an annual checkup as it helps the doctor screen for, diagnose and monitor varied diseases, such as kidney ailments, urinary tract infections (UTIs), liver disorders and diabetes.2. For the next 24 hours, urinate in the cup or container and carefully pour the urine into the large bottle. Keep the bottle in the refrigerator or cool it in ice, but do not freeze it. 3. At the end of the 24 hours, urinate one more time. Put the urine into the bottle. 4. Bring the bottle of urine to the lab the day

24-Hour Urine Test. A 24-hour urine test checks the health of your kidneys. Your provider gives you a container for you to collect your pee in for 24 hours, then you bring the container to a lab for testing. Providers can use a 24-hour urine test to look for signs of kidney disease, high blood pressure, certain cancers and causes of kidney stones.

the urine. Our b)dies alum'S have some varying degree of oxalate. About 405Wo of oxalate is from out<de sources (fmds and can be much higher on a high oxalate diet. See the ofthis a high of by milligram of is ma tay 3. S that less SO mg of per seNing limited to 4 day. SO mg of s e Ning strictly limited. ff do a content, make drink a About Litholink. Labcorp acquired Litholink in 2006 as a leading provider of testing that provides targeted treatment information, helping physicians better manage and prevent chronic diseases, including kidney stones and chronic kidney disease. In 2023 Litholink publicly rebranded as Labcorp. Litholink offers 24-hour urine testing for kidney ... Welcome to Litholink. Litholink is a laboratory that specializes in 24-hour urine testing for kidney stone formers. Your provider has requested that you complete a Litholink At-Home kit. Your provider is waiting on these test results in order to start your kidney stone treatment plan. 24-Hour Urinalysis Consult. Increase your knowledge. Decrease your risk. An essential step in stopping your stones. ... Jill is highly skilled at interpreting the 24-hour urine testing panels produced by Litholink and other major service vendors in the US. This makes her especially valuable.”Your doctor doesn’t have to use Litholink. Many doctors are contracted with a specific lab and have no choice in where they order their 24-hour urine collections. Just get the darn thing ordered, no matter where it comes from. Here is what should ideally be tested for in the 24-hour urine collection (found from Litholink). Volume; Calcium ...Litholink does not have a doctor-patient relationship with the individuals for whom tests are ordered, nor does it have access to a complete ... 24 Hour Urine pH SS CaP SS Uric Acid Urine Uric Acid (g/day) 2.61 5.48 305 37 600 1.41 6.322 0.36 0.903 Interpretation Of Laboratory ResultsYou may also visit our website at www.litholink.com and send ... When we eat more than 8 oz of protein a day, urine ... Your 24-hour urine sodium will tell you what ...Litholink Description: Litholink offers 24-hour urine testing for kidney stone prevention. Through sophisticated algorithms, Litholink provides quality test result with patient …3. Open the tube of urine preservative and empty the liquid into the collection container. Also, drop the uncapped bottle and cap inside to ensure the entire preservative is added. 4. Collect all of your urine into the collection container over the next 24 hours, including any urine during the night and that first urine of the following morning.The 24-h urine samples taken from 24 patients receiving a CBTD were provided for testing by Travere Therapeutics (San Diego, CA). ... The Litholink assay offered by the Litholink Corp. ... Mikel CC (2021) Accurate 24-hour urine cystine quantification for patients on cystine-binding thiol drugs (poster). Presented at WsAUA …

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My question reflected my confusion trying to understand my “LithoLink” 24-hour urine report, which has my pH of 6.491 indicating “increased risk for stone formation”, with a reference range of 5.8-6.2. I thought that the higher the number, the more alkaline, the less stone formation risk, with 7 the point of neutrality–so I thought I ...Why can some people smell asparagus in urine, while others can't? Learn about DNA research, asparagus and urine in this HowStuffWorks Now article. Advertisement In his novel "Love ...Answers to commonly asked questions about our tests, kits and billing. View kidney stone diet instructions, frequently asked questions, and provider kidney stone prevention return on investment information.Jan 7, 2016 · It is the place where everything combines into one risk number that itself rests on thermodynamics. We calculate is from a set of 24 ion combinations using 24 hour urine data – Litholink is best at this. Calcium oxalate and calcium phosphate SS matter, the latter more than the former. Best, Fred Coe. Reply 24-Hour Urine Collection Rationale. A systematic search was done in PubMed® for original publications involving adult kidney stone disease formers up to 2016. The search terms included were kidney stones, urolithiasis, nephrolithiasis, medical management, prevention, 24-hour urine, Litholink and randomized clinical trial.The largest vendors, Litholink (a branch of LabCorp) and Quest actually infer the 24 hour urine volume and do not use your measurements in most cases.We successfully linked Medicare claims with results from 24-hour urine collections performed by adults that were processed by Litholink. The resulting database is a unique resource for future studies on the clinical effectiveness of stone prevention strategies and urolithiasis more broadly.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Welcome to Litholink. Litholink is a laboratory that specializes in 24-hour urine testing for kidney stone formers. Your provider has requested that you complete a Litholink At-Home kit. Your provider is waiting on these test results in order to start your kidney stone treatment plan. ….

I am trying to “understand my “LithoLink” 24-hour urine report, which has my pH of 6.491 indicating “increased risk for stone formation”, with a reference range of 5.8-6.2. I thought that the higher the number, the more alkaline, the less stone formation risk, with 7 the point of neutrality–so I thought I might need to become more ...The process converts urine into useful products with effectively zero waste. Bricks play a crucial role in the construction industry, add a distinct aesthetic to homes, and now can... May use to monitor kidney stone formation. Panel includes calcium, citric acid, creatinine, oxalate, and uric acid. Preferred test is Supersaturation Profile, Urine (2008771) or Calculi Risk Assessment, Urine (2008708). ||Thoroughly mix entire collection (24-hour) in one container. Transport four separate 4 mL aliquots of urine using Calculi ... Nevertheless, data regarding actual implementation of 24-hour urine collections in clinical practice are conflicting and one of the perceived limitations for its use, in addition ... Urine samples from the Tufts population were analysed by Litholink, whereas those from the Torino group were analysed at the laboratory of Mauriziano Hospital .Welcome to Litholink. We are proud to offer you the only test that directly measures the saturation of cystine in urine. This test allows your physician to know if there is enough ... 2 red-topped tubes of liquid urine preservative per 24 hour collection 2 clear-topped (short) tubes of urine preservative crystals per 24 hour collection ...Participants were asked to provide 24-hour urine collections as well as diet and activity logs at the time of urine collection. Standard stone risk parameters were assessed and compared to litholink reference standards. Results: 34 athletes and 10 non-athletes provided at least one 24-hour urine specimen for evaluation. Athletes had a high ...Collection. Included preservative functions as a volume marker must be added to the main collection container at the beginning of collection and then return a 40 mL aliquot of the 24-hour urine per collection. Full 24-hour collection: Void and discard first urine and continue to collect for 24-hour period from that void time.For hours, walk-ins and appointments. ... Please contact Litholink for ordering information on the CKD program. This test number is not a specific laboratory (analyte) test. This number is used to indicate that a Litholink Chronic Kidney …Order a Litholink At-Home 24-hour urine kit online and get your results to create your treatment plan. You need a Litholink Test Request Form or Lab Order from your … Litholink 24 hour urine, Apr 4, 2024 ... Urine samples were analyzed with the system provided by Mission Pharmacal (San Antonio, TX, USA) for the first two cycles and by Litholink ( ..., About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ..., Participants were asked to provide 24-hour urine collections as well as diet and activity logs at the time of urine collection. Standard stone risk parameters were assessed and compared to litholink reference standards. Results: 34 athletes and 10 non-athletes provided at least one 24-hour urine specimen for evaluation. Athletes had a high ..., Founded Date 1994. Founders Fredric L. Coe. Operating Status Active. Company Type For Profit. Phone Number (312)243-0600. Litholink Corp providing the highest level of customer support for our 24-hour urine testing services. Our national infrastructure allows for a seamless, integrated service that makes it easier for clients to manage their ..., A single retrospective study demonstrated that a daily urine volume of 3.1 L may be associated with lower rates of cystine stone recurrence than a daily urine volume of 2.4 L. 9 If 24-hour urine data are available, clinicians may use daily cystine excretion as a guide to modify this recommendation since urine cystine concentrations of >250 to ..., Your doctor doesn’t have to use Litholink. Many doctors are contracted with a specific lab and have no choice in where they order their 24-hour urine collections. Just get the darn thing ordered, no matter where it comes from. Here is what should ideally be tested for in the 24-hour urine collection (found from Litholink). Volume; Calcium ..., The primary outcome was 24-hour urine volume (L), which was measured by 24-hour urine collections analyzed by Litholink as part of standard clinical care. For each participant, we considered all 24-hour urine volumes 12 months before and 12 months after the study period during which participants completed the Barriers to Water Intake study ( …, Oct 13, 2020 · The constituents to be measured in a 24-h urine specimen are defined by the needs of diagnosing disorders and for planning treatment with recurrent stone formers. The volume of the 24-h urine specimen is an important measurement, and counselling stone formers to increase urine volume is a common and effective form of treatment . For analytes ... , Protein is typically something you want to have plenty of, but this is only with regard to your blood. Protein in urine is actually a medical condition known as proteinuria. On its..., Litholink/Labcorp 150 Spring Lake Drive Itasca, IL 60143. Litholink 24-hour testing customer service: 1-800-338-4333. Standard hours of operation: Customer Service Mon-Friday 7am to 7pm CT, So after two years of doing that, I got recruited to work at a laboratory called Litholink, and they did 24 hour urine collections. It was founded by Dr. Fred Coe, who became my mentor. I worked there for many years and while I was working there doctors started sending patients to me through the phone. Patients would get their urine …, Anote la hora en que Ud. ha vaciado su vejiga y éste será el comienzo de las 24 horas. Recolecte la muestra de orina siguiente en un vaso de vidrio limpio y seco. Vierta la muestra en el contenedor marrón grande. Cierre el contenedor con la tapa firmemente y refrigere hasta la próxima recolección. Repita los pasos 3, 4 y 5 las siguientes ..., Litholink 24 Hour UrineTM Patient Results Report GENDER F Stone Risk Factors / Cystine Screening Dietary Factors Normalized Urine Values ABBR. ANALYTE Vol 24 REFERENCE RANGE COMMENTS Urine Volume 0.5 - 4 L/d; Raise vol to at least 2L . SS CaOx Supersaturation CaOx 6 - 10 Raise urine vol and cit, lower ox and ca., 7 mL aliquot of a well-mixed 24-hour urine collected in an acid-washed or metal-free container . Alternative Specimen(s) Tests performed on a specimen submitted in a non-trace element tube or non acid-washed/non metal-free container may not accurately reflect the patient's level. If a non-trace element tube/container is received, it will be ..., Splish-splash is not what you want to hear when you're standing in front of a urinal. A new design is being touted as the answer to the splashless pee. Advertisement Some things in..., Shipping Instructions for your Litholink Test. Three Easy Steps. Use the three steps below to schedule your one-time pickup: Step 1. Call FedEx at 1.800.463.3339. You will be askeda few questions. FedEx:“In a few words, please tell me what you’re calling about...”. Your Answer: FedEx Express® return pickup., May 17, 2015 · When you do your first collections, the ones your treatment is going to be based on, it is wise to do two: Two 24 hour urine collections. Before you start pulling your hair out, let me tell you why. What you eat and drink during your collection is going to be represented by your test results. If you do your collection on your birthday, you may ... , About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ..., Jan 30, 2024 · Labcorp LithoLink 24Hr urine collection kit. Please refer to Lab Supply at 630-933-2063 for LithoLink collection kits. Minimum Volume: 40 mL aliquot of 24-hour urine. Collection Instructions: Follow the collection instructions included with the kit. Patient preparation: Patients should stop taking Vitamin C (pill form, vitamins and/or ... , Download scientific diagram | Normal values for 24 hour urine collection (Litholink Corporation: Chicago, IL) from publication: "sTONE TREES": Metabolic Evaluation and Medical Treatment of the ..., 24-Hour Urine Test. A 24-hour urine test checks the health of your kidneys. Your provider gives you a container for you to collect your pee in for 24 hours, then you bring the container to a lab for testing. Providers can use a 24-hour urine test to look for signs of kidney disease, high blood pressure, certain cancers and causes of kidney stones., Hydroxyindoleacetic acid (5HIAA) If the 24-hour urine test will measure hydroxyindoleacetic acid (5HIAA), it is best to avoid these foods for the 3 days before your 24-hour urine test. Be careful to avoid these foods and any food that contains pieces of these foods such as juice, yogurt, cheese or sauces. Bananas., Bricks made out of recycled human urine may be in our future. HowStuffWorks takes a look. Advertisement You probably didn't know brick manufacturing was contributing to our climate..., Use only Quest Diagnostics 24-hour Urine Collection Kits specific for renal stone formation diagnosis. Follow instructions in the kit. Test should not be ordered on patients taking lithium, as lithium can affect results. For additional information, please contact the Quest Diagnostics Nichols Institute of Valencia at 800-421-4449. 1) Upon ..., The authors of the new paper set out to test the Litholink assay with the currently recommended 24-hour urine target of >150 mg/l (the point at which the urine is undersaturated and has the ..., Specimen: 24 hour urine. Volume: 50 mL of 24-hour urine. Container: 24 Hour Urine Container, Litholink 24-hour Collection Kit. Collection: Full 24-hour collection: void and discard first urine and continue to collect for 24-hour period from that void time. Storage Instructions: Room temperature with preservative- DO NOT refrigerate., Litholink 24 Hour Urine Collection Kit required for specimen collection. Specimen: 24 hour urine Volume: 50 mL of 24-hour urine Container: 24 Hour Urine Container, Litholink 24-hour Collection Kit Collection: Full 24-hour collection: void and discard first urine and continue to collect for 24-hour period from that void time., A 24-hour urine sample is obtained for analysis of a full stone risk profile while patients maintain their customary activity level, diet, and fluid intake. ... LabCorp, Litholink, Mission, Nichols, and Urocor. Some analyze only 24-hour urine data, while others include serum data and/or patient-reported clinical history and medications in their ..., 356-8593. Specimen (s): Urine. Collection Medium: Urine - 24 hour/timed dark plastic urine container. Minimum: 24 hour urine collection with special preservative; collected by patient at home and submitted to reference laboratory via FedEx from patient's home. Rejection Criteria: Collections must be at least 22 hours but no longer than 26 hours., F303 NIDDK Biorepository Urine Mailing F326 Litholink 24-Hour Urine Mailing F351 Local Lab Serum Results Form Completed by Litholink Lab at B1 F355 Litholink Lab 24-hour Urine Results B2, B3, etc. Visit (Held if needed to achieve target BP, serum potassium & optimize ACE-I/ARB) Form # Form Name F202 Visit/Phone Visit F147 Baseline Pill Count, 356-8593. Specimen (s): Urine. Collection Medium: Urine - 24 hour/timed dark plastic urine container. Minimum: 24 hour urine collection with special preservative; collected by patient at home and submitted to reference laboratory via FedEx from patient's home. Rejection Criteria: Collections must be at least 22 hours but no longer than 26 hours., Jan 7, 2016 · It is the place where everything combines into one risk number that itself rests on thermodynamics. We calculate is from a set of 24 ion combinations using 24 hour urine data – Litholink is best at this. Calcium oxalate and calcium phosphate SS matter, the latter more than the former. Best, Fred Coe. Reply , Your doctor doesn’t have to use Litholink. Many doctors are contracted with a specific lab and have no choice in where they order their 24-hour urine collections. Just get the darn thing ordered, no matter where it comes from. Here is what should ideally be tested for in the 24-hour urine collection (found from Litholink). Volume; Calcium ...