Author Archives: Doc

Are Heartworms getting worse? A Seminar: Part 4 of 6

Mosquito ConsiderationsIn an October 2008 seminar, Dr. Tom Nelson made much of the increased numbers of tropical storms hitting the Gulf Basin in the past several years since Hurricane Katrina.  His thesis is that more storms equals more rain, equals more flooding, equals more mosquitoes. This was not much accepted as an explanation for the […]

Are Heartworms getting worse? A Seminar: Part 3 of 6

Preventive Medicine Considerations Heartworm preventive products have never been “100% effective”, but they have been pretty close.  It is interesting to note that in the drug approval process, testing is done in a (relatively) small number of Beagles in a laboratory setting, using only 100 microfilariae to infect the subjects.  This is a far cry […]

Are Heartworms getting worse? A Seminar: Part 2 of 6

Heartworm Testing Considerations One explanation proposed for the increase in dogs diagnosed with heartworm is an increased sensitivity (or accuracy, if you will) in the tests that are being used.  In other words, if you have a better test, you'll find more dogs with low numbers of heartworms that you might have missed previously. Thirty […]

Dog with a skin problem = Do a skin scraping cytology exam

The dermatologists harp on this, and for good reason.  When a dog has a skin problem, you frequently see a very non-specific outward appearance.  If he's been scratching it, it just looks like it's been scratched a lot.  You will probably see hair loss, flaking skin, redness, crusts, scabs, maybe some pimples.  This will be […]