LTM™ FAQs

If you do not find the answer to your question in the information shown below, please contact us.

Laboratory Testing Management®

Why should I use LTM™? How do I get started?
LTM™ has been designed to be easy-to-use, so it will help you to streamline your sample submission and result reporting and tracking processes. To get you started, we created some How to Videos; continue to check back as we will be building the video portfolio. Also, visit the catalog and begin searching; you will be prompted to apply for an account once you begin to create an order.

What is my LTM™ username?
Your username is the email address associated with your account. Your password is chosen by you when you activate your account.

I am not a native English speaker. Is LTM™ available in other languages?
LTM™ is available in multiple languages: German, English, French, Italian, Japanese, Mandarin and Spanish. On any screen in LTM™, you can instantly change the language by clicking “Language” in the upper right corner and selecting of your choice from the dropdown box.

Does LTM™ work with all web browsers?
LTM™ is optimized for multiple web browsers, including Safari, Firefox, Chrome and Internet Explorer (version 8 or higher). If you are using the LTM™ Lab function to manage your in-house laboratory testing, we suggest that you use Chrome or Internet Explorer (version 8 or higher).

What is the definition for each "Order Status" shown on the Orders page?

  • Draft (grey): Order is partially created but not yet scheduled.

  • Inactivated (black): Order was inactivated after it was in Draft form, Requested or Scheduled. Once an order is Received, it can only be inactivated by contacting the testing laboratory.

  • Requested (bright blue): The testing laboratory must accept requests for live animal submissions prior to receipt of the animal. Once an order is created for a live animal submission, it appears on a list for review and confirmation by the testing laboratory; during this period, the order appears as the Requested status. Once the laboratory has confirmed that the order can be accept on the chosen day, the status will change to Scheduled and you will receive email notification. If the laboratory cannot accept the live animals on that day, a mutually agreed upon date will be determined.

  • Scheduled (light blue): Order has been created and scheduled arrival date is in the future. For live animal submissions, the order has been created and the scheduled arrival date was requested and accepted by the testing laboratory.

  • Late (orange): Order was created and the scheduled arrival date is in the past (i.e., samples have not been received by the testing laboratory and the scheduled date has passed).

  • Arrived & Received, Arrived, Received (light green): Order has arrived or has been received by the testing laboratory.

  • Overdue (purple): The order has been received by the testing laboratory but results have not been approved within the standard results turnaround time.

  • Approved (dark green): Testing associated with the order was completed and results have been approved.






Whole Animal Submission

Why do live animal submissions to the Health Monitoring laboratory need to be scheduled? Why can’t I just send them whenever I want?
At Charles River, animal welfare is our top priority. We require advance scheduling because it allows us to be prepared and process animals the same day they are received. Plus, if your animals have not arrived when we expect them, we will contact you to ensure the shipment was sent and help to investigate any shipping delay. If you are experiencing an emergency (e.g., sickness, moribundity, etc.) in your animal colonies, please contact us at once, as all diagnostic cases take priority and are scheduled immediately.

What do I need to do to prepare for a shipment?
To help you submit animals or samples for testing, we developed the printable Animal Safety Checklist.

Why does a printout of my order need to be included in the shipping box?
A hardcopy submission form included in the shipping box allows us to confirm that the samples are from you, and we check for discrepancies between the number of animals and the species noted on the form, and the animals received.






Sample Submission

Can I send samples any day of the week?
Samples can be received by Charles River on any day of the week. They will be stored at the appropriate temperature (based on your labeling on the outside of the shipping box). At the start of the following business day, the laboratory will begin processing your samples.

How do I know what sample(s) to submit for a particular test and how to send them?
In the LTM™ catalog, simply search for the test, click on the name and select the Sample Submission tab on the pop-up box. Here, you will find instructions for collection, sample storage and shipping.

How should I label my sample tubes?
Be sure to label your samples on the vials themselves, rather than the caps—on rare occasions, caps can separate from vials in transit. Your unique sample information can be printed, directly from LTM™, onto standard labels found at your favorite office supply store.

How should I organize my samples for serology or PCR?
Ideally, up to 20 samples should be in a group (either in cryo boxes with tube separators or zip-top bags). This organization allows you to quickly double-check that the number of tubes matches the order form. Further, it allows for expedited pre-processing upon receipt. Complete the online sample shipping materials request form to receive materials.

Why does a printout of my order need to be included in the shipping box?
A hardcopy submission form included in the shipping box allows us to confirm that the samples are from you, and we check for discrepancies between the number/type of samples noted on the form and the actual samples received in the box.

I use your serology reagents and would like to confirm my results. How do I do this?
By purchasing our serology reagents, we provide free confirmatory testing using MFIA® serology for inconclusive serology results. Create an order using LTM™ and submit the sample(s) with a copy of your results findings; this will allow us to confirm the findings and better troubleshoot the specific serology assay.

I am submitting a serum sample for clinical chemistry but I have less than the required 300µL. What should I do?
If you have less than the required sample volume, we may not be able to run all of the assays in the clinical chemistry panel. When you create your order, prioritize the assays by typing instructions for the testing laboratory—we will first run the assays at the top of your list and work our way down.






Cost Estimates and Customized Testing

Can you help me to develop a health surveillance program for my research animal colonies?
Yes, our veterinary and scientific staff members will work with you to learn about your facility and your needs in order to design a customized program. To learn more, complete the online request a quote form.

Do you offer any tests that are not listed in your catalog? Do you make custom assays?
We often have assays in the research and development phase that are not yet commercially available. Also, we have an extensive portfolio of off-the-shelf clinical chemistries and biomarker immunoassays, many of which may not be listed in our catalog. Lastly, we develop assays customized to your needs in multiple areas (i.e., infectious agents, biomarkers, genetic testing). To learn more, complete the online request a quote form or contact us via telephone or email.

I would like to outsource some biomarker testing to youwhat information do you need from me?
We develop custom assays and qualify off-the-shelf kits. Also, we can tech transfer your assays to our testing laboratory and perform the appropriate bridging studies. Using our online request a quote form or via telephone or email, please provide a list of the assay(s) you need, the species, matrix, number of samples, your timeline and the number of submissions.