Although these are heartbreaking circumstances, the good news is that this is now unlikely to happen because of the availability of universal forward-and-backward reading scanners. A: As with almost anything, it's not a foolproof system. Although it's very rare, microchips can fail and become unable to be detected by a scanner.
Problems with the scanners are also not common, but can occur. Human error, such as improper scanning technique or incomplete scanning of an animal, can also lead to failure to detect a microchip. Some of the animal-related factors that can make it difficult to detect a microchip include the following: animals that won't stay still or struggle too much while being scanned; the presence of long, matted hair at or near the microchip implantation site; excessive fat deposits in the region of implantation; and a metal collar or a collar with a lot of metal on it.
All of these can interfere with the scanning and detection of the microchip. See our literature review for guidelines on scanning procedures to reduce the chances of missing a microchip.
Q: My pet has two different frequency microchips implanted. Do I need to have one removed? Will they interfere with each other? Which microchip will be detected by the scanner? A: No, you do not need to have one of the microchips removed and no, they will not interfere with each other. The microchip detected by the scanner will depend on the scanner used — if it is a universal forward- and backward-reading scanner, it will probably detect each chip as it is passed over it.
To detect the other chip, the scanner has to be reset and passed over the area where it is located. If it is a scanner that only reads one microchip frequency, it will only detect a microchip of that specific frequency and will not detect or read the other microchip. If you know your pet has more than one microchip implanted, make sure you keep the database information updated for each microchip.
People don't routinely assume there's more than one microchip because it is very uncommon , so they will try to find the owner based on the registry number of the microchip they detect. Can I do that?
A: Sure you can. Both chips will function normally. If your pet is scanned with a scanner that only reads kHz chips, only the kHz chip will be detected.
If your pet is scanned with a universal forward- and backward-reading scanner, it could detect one or both chips separately see the question above this one for more information.
What do I need to do? A: Your pet will need to be implanted with an ISO microchip before it will be allowed into that country. But that's not the only thing you need to know: countries differ widely on their importation rules, including different regulations about required vaccinations and quarantine periods once the animal enters that country.
If you do some research and preparation, your pet's relocation can go smoothly. Contact the country of origin to determine their requirements regarding microchips as well as vaccinations, certificates, etc. Alternatively, you can contact an experienced animal shipper who is well-versed in the processes and regulations affecting animal shipment. A: In general, your pet won't need another microchip to be allowed into that country; however, you should check on the destination country's animal importation regulations as you plan your relocation.
That's not the only thing you need to know: countries differ widely on their importation rules, including different regulations about required vaccinations and quarantine periods once the animal enters that country.
Q: Why isn't it a requirement that all shelters and veterinary clinics use the same microchips and readers? Or, if there are different frequencies of microchips and each requires a separate scanner, why aren't they required to have one of each scanner so microchips are never missed? A: There is no federal or state regulation of microchip standards in the U. Because of market competition, animal shelters and veterinary clinics are able to choose from several microchip manufacturers and scanners.
Microchip scanners are relatively expensive, and it is often cost prohibitive keep one or more of each type of microchip scanner. This problem can be solved by the use of universal microchip scanners, which are readily available. The use of ISO standard microchips would be a good step in developing a consistent microchipping system in the U.
Q: When I have my pet microchipped, is there one central database that registers the information and makes it available to animal shelters and veterinary clinics in case my pet is lost or stolen? A: At this time, there is not a central database in the U. Because the ISO standards for identification codes have not been adopted in the U. Fortunately, microchip scanners display the name of the microchip's manufacturer when the microchip is read.
Therefore, the likelihood that an animal cannot be identified from its microchip number is very low—that is, unless your pet's microchip has not been registered or the information is not accurate.
A number of free microchip databases have been launched over the past few years, but many of these databases are not tied directly to the manufacturers' databases. Any database with which you register your pet's microchip needs to be regularly updated, and the critical database to keep up-to-date is the one maintained by the microchip manufacturer.
Q: What are some of the problems associated with microchips? How common are they? Since the database was started in , over 4 million animals have been microchipped and only adverse reactions have been reported. Of these reactions, migration of the microchip from its original implantation site is the most common problem reported.
Other problems, such as failure of the microchip, hair loss, infection, swelling, and tumor formation, were reported in much lower numbers.
A: There have been reports that mice and rats developed cancer associated with implanted microchips. However, the majority of these mice and rats were being used for cancer studies when the tumors were found, and the rat and mice strains used in the studies are known to be more likely to develop cancer.
Tumors associated with microchips in two dogs and two cats have been reported, but in at least one dog and one cat the tumor could not be directly linked to the microchip itself and may have been caused by something else.
A: We do not recommend that you have your pet's microchip removed, for two reasons. First, based on our review of the studies, the risk that your animal will develop cancer due to its microchip is very, very low, and is far outweighed by the improved likelihood that you will get your animal back if it becomes lost. Second, although implanting a microchip is a very simple and quick procedure, removing one is more involved and may require general anesthesia and surgery.
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Working as an emergency care veterinarian What does a veterinary clinical pathologist do? Microchipping is a quick only takes a few seconds , safe and simple procedure and causes little discomfort.
Some puppies and kittens may flinch or yelp as the chip is implanted, however the pain is minimal and short-lived and most animals will forget about it very quickly. Microchipping is very important for re-uniting lost pets with their owners. Should your pet go missing you are far more likely to be reunited if he or she is microchipped. The benefits of microchipping in terms of identifying a lost animal and reuniting them with their owner far outweigh any minimal, momentary discomfort.
This is the only way to effectively trace the origin of a cat or dog. However, if your pet is not yet microchipped then we recommend that you make an appointment with your vet to have your pet microchipped even in those states where microchipping is not yet compulsory.
Only authorised microchip implanters are permitted to microchip pets. Vets and animal welfare organisations can microchip pets. Some local councils also organise microchipping days.
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