Did the vet give him a de-worming product, or check a fecal sample?
Has he had any vaccinations yet?
Did you have him tested for feline leukemia (FeLV) and feline immunodeficiency virus (FIV)?
Thanks,Lynn
Hi,
Your kitty needs to be seen by your vet again. The lethargy and elevated heart rate are definite causes for concern. If your vet did not actually check a fecal sample it would be a good idea to do so, to determine if there are still any parasites or if the wormer was the appropriate one. I would also advise testing for the feline viruses as these will cause a variety of health problems in kittens. Here are links to pages about them:
http://www.vet.cornell.edu/fhc/brochures/felv.html
http://www.vet.cornell.edu/fhc/brochures/fiv.html
Your kitten could also simply have another infection of some sort. Whatever the problem is he needs to see a vet again.
If you have further questions let me know. If this answer is helpful please click accept. Thank you.
Lynn
Veterinary Assistant
worked at a vet clinic for 15 yrs, BA in biology, have had cats most of my life