This article is from an earlier edition of the Rat Health Care booklet. Current editions have this information in chart form. Order one today! Check out the info at Rat Books
by Debbie “The Rat Lady” Ducommun
First aid is care given in an emergency. Sometimes, first aid is not enough, and your rat will also require veterinary care. If you must rush your rat to the vet, be sure to call first to let them know you’re coming. That way they’ll be prepared to help as soon as you arrive.
Respiratory Distress
A rat can experience respiratory distress without any warning, whether or not she has had previous respiratory symptoms. The signs of respiratory distress are gasping through the mouth, or dashing about in a panic. Severe labored breathing can also be considered respiratory distress. The rat may or may not have blue extremities. Respiratory distress is extremely unpleasant—one of the most distressing experiences there is—and must be treated immediately.
One of the first things to try is to get the rat to breathe air moistened by a humidifier or a shower running in the bathroom. You can also boil water on the stove, but do not let the rat inhale the steam directly, as that can burn the lungs. Hold the rat at least 3' away from the steam.
If it seems like the rat might have mucus in the throat that is blocking the free passage of air, see choking (below).
If the rat is still having trouble breathing, and the problem is constricted breathing passages (like asthma) a bronchodilator will help. The best treatment is a subcutaneous (subQ) injection of aminophylline, which will expand the breathing passages. In most cases, this will stop the respiratory distress within a matter of minutes. It is also recommended that the rat be given a subQ injection of dexamethasone to reduce inflammation in the lungs. If dexamethasone isn’t available, you can give ibuprofen at 60 mg/lb twice a day.
If aminophylline isn’t available, you can try an asthma inhaler. You can buy one called Primatene Mist at a drug store without a prescription. Put the rat in a small paper bag, inside a large plastic container or under a blanket and put two or three puffs of the medication in with the rat. Try to keep the rat there for several minutes to make sure she inhales the medicine.
If a bronchodialator doesn’t help within 15 minutes, you can try an injection of furosemide, a diuretic that will quickly flush excess fluid out of the lungs.
If none of these treatments work, the rat must be put in oxygen. If the rat doesn’t improve on oxygen it means her lungs are no longer able to work and she should be euthanized. If the rat does improve on oxygen, then you have some time to wait for other medications to work.
Once you get the rat out of respiratory distress, she should be put on both amoxicillin and Baytril. She may need continued treatment twice a day with aminophylline, an anti-inflammatory (either prednisone or an NSAID), furosemide, and perhaps even enalapril and atenolol.
Choking
Because of the arrangement of the rat’s throat, true choking is rare. If your rat appears to be choking the most likely cause is a piece of food or other substance stuck in her throat. This can cause gagging and drooling. A rat who is gagging will open her mouth wide and pull her ears back.
As long as the rat can breathe, don’t do anything accept try to comfort her. Anything you try to do to stop the gagging may make the situation worse. The offending food will eventually pass down in most cases. You might try offering your rat a small piece of bread to see if that will help push the food down, but do not use doughy bread which might make things worse.
If your rat is having real trouble breathing, and not just labored breathing, you can try doing the Heimlich maneuver, by pressing sharply up and in underneath your rat’s ribcage.
Or you can do a procedure called “the fling” which uses centrifugal force. Hold your rat firmly around the neck with one hand, and by the base of the tail with the other to hold her securely. Make sure there are no objects within an arm’s length. Lift the rat overhead and bring her down in a rapid arc, so that at the end of the path she’s tail up and head down. This can be repeated 3-4 times, then give the rat a rest, check her breathing, and see if anything is visible in the mouth. This is extremely effective in dislodging objects or mucus in the throat.
If neither of these techniques helps, you can put your mouth over the rat’s mouth and try sucking the obstruction out. Be sure you do not cover the rat’s nose. If the rat is still having trouble breathing, try a shot of dexamethasone.
If choking or gagging persists for more than 6 hours, take your rat to the vet. There may be an object lodged in the throat too big to pass down, or there might be a tumor or some other problem. Sometimes respiratory disease can cause gagging and choking due to swelling of the airway and/or too much mucus.
If your rat gags frequently, she may have mega-esophagus, a problem where the nerves to the esophagus are defective. In this case the rat must be put on a liquid diet. Offer free choice of Ensure adult nutritional drink or a similar product. Also give the rat a liquid vitamin B supplement to supply 1 mcg of B12 daily. Be sure keep all paper away from the rat as eating paper can cause a fatal blockage.
Lethargy
Lethargy in rats is a serious symptom that needs immediate attention. Give your rat a full exam to look for other signs, especially dehydration and lumps in the abdomen. Even if your rat is not dehydrated, he might have low blood sugar or an electrolyte imbalance. Try to get him to drink some juice, a sports drink, or sugar water with a pinch of salt. If your rat is dehydrated, try to get him to drink 1-2 ounces. If he refuses to drink, warmed saline solution for injections must be given under the skin.
One rare cause of lethargy is pesticide poisoning. This will also cause the pupils to be constricted so they do not expand in the dark. If your home has recently been sprayed with pesticides you’ll need to rush your rat to the vet for an injection of atropine.
If the sugary drink does not cause your rat to improve within 30 minutes, it is very important that your rat be treated with amoxicillin ASAP. One of the main causes of lethargy in rats is a secondary bacterial infection. Mycoplasma is the primary bacterial infection in most rats but does not usually cause symptoms of lethargy. In my experience (of over 23 years) the best treatment for secondary infections in rats is amoxicillin. Baytril, which most vets prescribe for rats, is not as effective for most cases of secondary infection in rats, and doxycycline, which can be quite effective in treating mycoplasma, is absolutely not effective for secondary infections. I know of many many cases of rats who seemed to be dying who recovered within just a day or two of treatment with amoxicillin, while I also know of many cases of rats who died within 12-24 hours of exhibiting lethargy that went untreated. For this reason, I recommend that all rat owners have amoxicillin capsules on hand. For more information on using amoxicillin see www.ratfanclub.org/resp.html.
Poison Hotline
If you suspect poisoning in your rat (or other pet), here are the phone numbers for the National Animal Poison Control Center at the College of Veterinary Medicine at the University of Illinois at Urbana-Champaign.
1-900-680-0000 You will be charged $45 per case.
1-800-548-2423 You must have a credit card to use this number and you’ll be charged $45 per case. Both of these numbers are active 24 hours a day. Be ready to provide:
1. your name, address and phone number;
2. the species, breed, age, sex, weight and number of animals involved;
3. the poison, and if known, details such as amount of poison ingested, time since exposure, etc.
4. the problems your animal is experiencing.
Here is the phone number for the ASPCA Poison Control Center: 888-4ANI-HELP. You will be charged $45.
Wounds & Bleeding
The body skin of rats contains few pain receptors, and minor wounds usually bleed little and heal quickly. Rats heal so quickly wounds less than 1 ½" long do not need to be stitched. You really don’t need to do any treatment. The rat will lick it clean, and would lick off any medication anyway. If the wound seems to be painful for the rat you can apply a little Bactine. (This is also helpful for treating scratches rats sometime inflict on humans!) A rat with an open wound must be kept in a spotless cage with only rags or shredded paper because litter may contaminate the wound.
These two pictures show how fast a skin wound can heal in a rat. The first picture was taken shortly after Vinnie was wounded by another rat. The bite went completely through the skin, and the underlying muscle was visible. It was about an inch long. By the next day you can see that the wound is already partially healed and the muscle is no longer visible.

Wounds to Extremities
The feet, ears, tail and mouth all have a considerable blood supply, and injuries to these areas can cause profuse bleeding. The first step to stop the bleeding is to apply direct pressure for two minutes. If the bleeding continues, put some flour in a small container and press the bleeding area into the flour, or press some flour onto the wound. The flour will help the blood to clot. Cornstarch can also be used, as well as a commercial product to stop bleeding. Another thing to try is holding ice against the injury. The cold will reduce the blood flow.
If the injury is a severed toe or tail tip, you may have to apply a tourniquet. Tie string as close to the end of the extremity as possible. Tighten the tourniquet until the bleeding slows to an ooze. Do not tighten the tourniquet too much, or you could cause additional damage. Remove the tourniquet after 20 minutes to see if the bleeding has stopped, or can now be stopped using the other methods. If not, replace the tourniquet and take your rat to the vet.
If a toenail is bleeding, the best way to stop it is to use styptic powder or a silver nitrate stick. Flour or cornstarch can also be used like styptic powder. Press some into the end of the nail.
After a wound to a toe, it’s common for the toe to swell quite a bit and turn red. It’s not usually necessary to treat this condition and after a week or two, the toe will heal. If you like, you can give the rat an anti-inflammatory such as ibuprofen to help bring down the swelling.
If a rat is picked up by the tip of her tail, the skin will often be pulled off. The bare end of the tail will usually dry up and fall off on its own. You can apply Bactine to help with the pain. Observe the tail for any sign of infection, such as pus or a bad smell (this is rare) and if this occurs, consult your veterinarian. Sometimes a rat will chew at the tail. If this happens, try treatment with an analgesic. You can give ibuprofen at a dose of 60 mg/lb twice a day. If that doesn’t help, you’ll have to have your vet perform an amputation.
Ibuprofen interferes
with blood clotting, so if your rat has had bleeding, you do not want to use
ibuprofen that day. For pain you
can use acetaminophen (Tylenol) at 90-140 mg/lb every 4-12 hours. Choose the dose according to the
severity of the pain and possible length of use, with lower doses for repeated
use. Overdoses can damage
the liver.
Bleeding from Nose, Ear or Mouth
For bleeding from the nose, try holding ice to the bridge of the nose. You can also give your rat ice cream or a popsicle to eat, and hopefully the cold will penetrate the nose and help. Wipe the blood from the nostrils to help clear them so your rat can breathe.
Bleeding from inside the mouth can also be difficult to deal with since it’s so hard to see where the blood may be coming from. It’s possible for a rat to accidently bite his tongue, and bleeding can also occur from a mouth tumor or from an injury to or tumor in the throat. Giving your rat ice cream or a popsicle may help stop the bleeding.
For bleeding from an ear, try putting pressure and/or ice against the base of the ear. Infection or cancer are the most common causes of bleeding from inside the ear, but occasionally a rat will accidentally puncture his eardrum while cleaning his ear with his toenails.
If you cannot stop the bleeding after trying all these methods, you will need to take your rat to the vet where he can anesthetized for more effective procedures, such as suturing. There is also a product called Gel Foam which is a protein that becomes very sticky on contact with blood which may be able to stop bleeding from an injury. Your vet can also give a rat an injection of vitamin K to help blood clotting.
Bleeding from inside the nose is most commonly caused by an infection, which can erode away the tissue, opening a blood vessel. The size and number of the vessels determines the amount of bleeding. After you get the bleeding stopped, bleeding from the nose needs to be treated with an antibiotic. I recommend amoxicillin. This is also the treatment I recommend for an ear infection. For information on using amoxicillin see the article on Respiratory and Heart Disease, or email me at ratlady@ratfanclub.org.
Accidents & Injuries
Accidents such as a rat getting stepped on, or falling from a height are pretty common. I’ve witnessed young rats who have experienced loss of consciousness or convulsions after a fall, and then appeared to recover completely within a few minutes. However, one of these babies started having seizures at one year of age, so immediate treatment with an anti-inflammatory such as dexamethasone after such a fall is recommended. I also know of rats who have broken their neck, nose, or leg from a fall, so you should observe your rat carefully after an accident. Being stepped on is especially dangerous since it can cause internal bleeding. If your rat appears lethargic or in pain, you should rush her to your vet. If injuries are apparent, the rat should receive an injection of dexamethasone to reduce swelling and a pain medication, or ibuprofen (see below) for swelling and pain.
Leg Injuries
Another common accident is a rat getting her leg caught in the wire of the cage. (1" X ½" mesh floors should be covered or removed to prevent this.) Treat the rat with ibuprofen at a dose of 60 mg/lb twice a day. You can use children’s liquid (the berry flavor seems to be most popular with rats) or you can grind up a tablet and mix it in a soft tasty food. When using the liquid ibuprofen, I recommend giving the rat a tasty treat afterwards to mask any bitter aftertaste that will cause the rat to refuse future doses.
If swelling persists after 24 hours, or if the swelling gets worse, you will probably need to take your rat to the vet for an injection of dexamethasone (at 1 mg/lb) which should reduce the swelling within 12 hours. Swelling of the foot can be dangerous because it can cut off the circulation of the foot, leading to more swelling, creating a vicious cycle. The vet might want to take an x-ray, but this will likely be a waste of money, even if the leg is broken. Most broken legs in rats can heal on their own, even breaks near the ankle joint that are floppy. You do not need to keep the rat isolated or quiet. Treat the pain and swelling with ibuprofen at a dose of 60 mg/lb twice a day. A compound fracture, where the bone breaks the skin, is much more serious and you must take your rat to a vet as the leg may need to be pinned or amputated, and treatment with an antibiotic (I recommend amoxicillin) is necessary.
If a swollen foot looks like it is puffed up with fluid, you can try soaking it in a warm Epsom salts solution, which will help to draw excess fluid out through the skin. The easiest way to soak a foot is to put the solution in a small baggie to put the rat’s foot in.
I once had a rat who developed pain in his ankles from being on a wire floor without actually getting his legs caught. There was no swelling but he demonstrated pain by holding one foot up or limping on it. When I moved him to a cage without wire floors, the pain went away.
Swelling
Sudden severe swelling, especially on the face, can occur from an injury or from an insect or spider bite. You can treat swelling with ibuprofen (see below). Or you can take your rat to the vet for a shot of dexamethasone. (Swellings can also be abscesses, which can appear fairly suddenly.)
An injury to the flap of the ear can result in a hematoma. This is a pocket of blood that forms under the skin. DO NOT try to lance a hematoma because this can cause profuse bleeding that is difficult to stop. A hematoma of the ear will eventually resolve on its own, although this may disfigure the ear. It this bothers you, you can have your vet repair the hematoma surgically.
Giving Ibuprofen
Ibuprofen is an NSAID, a non-steroidal anti-inflamatory. It is a more effective pain killer and anti-inflammatory than aspirin or acetaminophen. It interferes with blood clotting but only while it is in the system. Chronic use can cause bleeding, ulceration, and perforation of the stomach. It can cause fluid retention and decreased blood flow to the kidneys, so is more risky to use in the elderly, with heart or kidney disease, or with diuretics. The dose is 15-60 mg/lb 2-4 times a day. Lower doses are for analgesia, higher for inflammation.
You can use you can either crush up a tablet or use liquid baby medications if they do not contain sorbitol, an artificial sweetener that rats hate. Sorbitol will be listed under the inactive ingredients. Most rats like berry flavored Motrin. To figure out the dose, look on the bottle to see how many mg/ml. Figure out how many ml to use to give your rat the proper number of mg. It’s a good idea to give the rat a treat afterwards to mask the bad aftertaste that may cause your rat to refuse the medication the second time.
For tablets, you can grind them up into a fine powder on a small plate with a spoon. For capsules, pull the halves of the capsule apart and dump out the powder. Grind it up if necessary. You can then mix the powder in liquid or food.
To mix in food, mix the powder well and divide into little piles, each containing the proper dose. Then you can scrape a pile into the food. Some suggestions include baby food, pudding, mashed avocado, yogurt, brown sugar and carob powder, honey, peanut butter mixed with jelly, moistened graham cracker, non-fat cream cheese, margarine, Nutri-Cal, pasta sauce, and as a last resort, ice cream, frosting, cheesecake, or even butterscotch or chocolate syrup! Use only enough food to mask the taste of the medicine so your rat will eat it all immediately. Adding a bit of salt will help counter the bitter flavor of medicines. If your rat refuses to eat the doctored food voluntarily, those in paste form can be smeared on his mouth, or even on the backs of his ears so he will groom the paste off and eat it.
Heat Stroke
Because rats are so small, and not well adapted to heat, they can succumb to heat stroke quickly. Situations that can cause heat stroke include leaving your rat in the sun or outside in warm weather, too close to a heater, or on a heating pad. The symptoms of heat stroke can include drooling and lethargy or unconsciousness. The tail will be quite warm to the touch. You must quickly cool the rat by submerging her up to her neck in lukewarm water. Also encourage her to drink an electrolyte beverage or water containing some sugar and salt. If she doesn’t recover quickly, rush her to your vet.
Shock & CPR
There are two types of shock we need to be concerned about: electrical shock and physiological shock. Electrical shock can occur when a rat chews through a power cord. Electrocution can cause unconsciousness and can also stop breathing. In this case, you must do mouth-to-nose respiration to start the breathing again.
Place your lips around the rat’s nose and blow into her lungs. You will have to blow fairly hard, enough to make the chest expand, but not too hard. After blowing 2-3 times, check to see if breathing has started. If not, firmly massage the chest for a couple of seconds and then blow in their nose again. Alternate the chest massage with blowing into the lungs. Firmly slapping the body can also stimulate breathing. Do not give up too easily. You may have to work for several minutes to restore the breathing.
Electrocution can also cause burns, especially to the mouth. Burns are not always obvious on animals with fur so if your rat has been electrocuted, a veterinary exam is good precaution.
Physiological shock is a condition where the circulation system shuts down because of blood loss, extreme stress, or other failure of normal body systems, and is an extreme emergency. The symptoms include extreme lethargy, dull eyes, and low body temperature. Keep your rat warm and her head lower than her body while rushing her to the vet for an injection of dexamethasone and possible fluid therapy.
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