Monday, February 3, 2020

4071. Reyna. A vet can mis-diagnose mite infestation when skin scrapings are negative

http://guinealynx.info/mites.html






Signs

These species specific microscopic mites cause unbearable itchiness for the animal and can result in thinning and/or patchy loss of hair, scurfing of the skin (may resemble dandruff) and eventually, open sores as a result of extreme scratching and biting which aggravates the hair loss. Scratching an area of skin infested by mites by hand may produce such pain and irritation in your guinea pigs that it looks like it's having a fit. A guinea pig suffering from mites may become less friendly and be reluctant to interact with its owner.
While skin scrapings may confirm mites, scrapings are frequently omitted because they are so unreliable (see MISDIAGNOSIS below). Often a vet will administer ivermectin in the presence only of itching and hair loss, treating for other conditions such as fungal infections in the absence of improvement. It is important to note that your guinea pig may be suffering from more than one condition.

MISDIAGNOSIS

Occasionally a vet will completely misdiagnose a mite infestation.
Ciaytee's vet ruled out mites when they could not be found in a scraping. He treated for fungus and yeast infections, sent off cultures, did a skin biopsy, and felt he was exploring every possibility. Her pet had to go under anesthesia twice -- once for a chem panel and once for the biopsy. All this time her guinea pig (who had lost 1/3 to 1/2 of his hair) was in great pain, with sores, and rather than improve, continued to get worse over several weeks. She finally suggested treating with ivermectin in case it was mites. The turn around was almost immediate. Check Guinea Lynx forums for a detailed account of her experiences.
Do everything you can to get proper treatment if mites are suspected. Mange mites can kill.

Treatment

Mite infestations are generally treated with ivermectin by injection, orally, or topically (usually placed on the skin behind the ears because the fur is so thick). Two or more doses spaced 7 to 10 days apart are required. Ivermectin appears to be safe used on pregnant guinea pigs but is best not used on guinea pigs under 12 ounces (approx. 340 grams). This drug must be administered in the correct dose to avoid serious adverse reactions and possible death. A good exotics veterinarian should be familiar with the drug and know what doses are considered safe for guinea pigs. Seeing a competent vet will assure that this medication's use is indicated and that it is appropriately administered. A vet may also provide topical treatment for open sores and infection caused by scratching and for crusty skin and other complications related to the infestation. Diazepam can help control itching. Steroids may also bring relief to a guinea pig in such pain it is seizuring but must be used with caution. Cut the nails back to minimize further damage from scratching.
Ivermectin is administered by a formula specifying the dosage in milligrams per kilo of weight for the individual species. Therefore it is essential to know the weight of the animal to be treated, and the dosage in mg /kilo for that animal. Your vet should be able to find medical references to determine the correct dosage.
When mites are properly diagnosed, all your guinea pigs will need treatment and their living quarters must be thoroughly cleaned. Avoid future infestations by quarantining and treating new animals if suspected of being carriers and practicing good husbandry. Some breeders will routinely treat new guinea pigs in quarantine (since they can carry mites while showing no signs) rather than risk reintroducing mange mites to a whole herd of guinea pigs.
Alternate treatment: Some pet owners have had good luck with Revolution (Selamectin). A single dose applied topically kills both mange mites and lice. Read more about Revolution in the section on Antiparasitics.

Avoid flea and tick powders, sprays, shampoos, foams, gels and wipes -- many contain pesticides that are dangerous for guinea pigs. Read the ingredients. Some of these products have caused death. If your pet has mites, USE IVERMECTIN. When used according to directions and dosed carefully, it is a much more effective and safe product. 

4070. A guinea pig or a rabbit as pet?

Kay Dudman
Kay Dudman, Caring for guinea pigs for over twenty years

4069. REYNA. A 9-month-old guinea pig stops eating and whines in pain - gastric distension - X rays


A 9-month-old g p has swollen abdomen. Gastric distension. 






The guinea pig passed away the next day owing to
chronic infections and ileus (gas in the intestines). 




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COMPARISON TO THE OUTCOME IN THE FOLLOWING CASE
4-year-old g p with severe gastric distension






bloody urine initially - the vet gave baytril and pain killers for the past 10 days. Urine
changed to brownish colour. The g p stops eating. Why?


















Saturday, February 1, 2020

4068. A good dental care enables the dog to live a healthy life.



"Remember, You neutered my dog when he was very young," the man with his head shaved bad said. "Now, I have come for his annual vaccination".

"Has your dog any dental scaling?" I asked.
"No", the clean-shaven happy bald gentleman said.
My assistant tried to open the mouth for me to examine. The dog shook his head and clamp his jaws. "Your dog does not want his mouth opened," I tried to open his mouth, but without success. "There are hard brown tartar on the back teeth. He has some oral pain due to decaying teeth.

"We will do a blood test first," I told the owner who agreed to dental work.


The dog's front teeth looked much cleaner. Most likely, the groomer had provided dental scaling.




"Normally, old dogs can take isoflurane gas anaesthesia safely," I had done many cases. "Provided the heart, liver and lungs are normal."


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VIDEO




Old dog with premolar 4 tartars (show some images of cases)
and carnassial tooth abscesses

blood test showed bacterial infections

gum tumours


4067. Reyna: A rabbit grinds her teeth and has body odour. - likely pyometra. Pt 1/2. .

Jan 30, 2020

The 82-year-old grandpa brought this rabbit for consultation. "The rabbit has lost appetite and grinds her teeth," the teenaged grand-daughter said. "She has a strong body odour."

"I hope the fees will not be a few hundreds," the grandpa told me. His generation has lived through the horrors and deprivations of World War 2 and he wanted the least cost to get his rabbit diagnosed and treated. I noted sticky yellow-white pus on the inflamed private parts. "The rabbit could be suffering from a urinary tract infection or pyometra which is an infection of the womb,"

DIFFERENTIAL DIAGNOSIS:
1. Dental malocclusion. Molar spurs. X-rays of molars.  Drooling - body odour. salvia stains.  No X-ray consent given.
2. Female - pyometra - yellowish-white vaginal discharge seen
3. Female - uterine tumours.
4. Urinary tract infection or urolithiasis. No x-ray consent given. Uine test.
5. Gastrointestinal stasis (Ileus). Rabbit is eating. No X-ray consent given









A urine test was need. 




Older rabbits do develop uterine tumours. This could result in pus leaking out from the uterus to the outside. The rabbit groomed herself and the smell of pus and blood soiled her coat. Hence, the bad body odour.

As the owner wanted the least cost treatment, no ultrasound or X-ray was done to confirm the uterine tumour or bladder and kidney stones.


UPDATE:






Kay Dudman
Kay Dudman, Caring for guinea pigs for over twenty years




4066. Reyna. A Silkie Terrier has a hard firm backside lump - left anal sac abscess. Pt 1/2














Abscess "ripened" after prednisolone injection. Ruptured overnight inside kennel.