Cat Veterinary

Have Cat Questions? Ask a Cat Vet Online.

Ask a Cat Veterinarian,
Get an Answer ASAP!

I have a cat that 18 years old the last couple of years she…

Customer Question
I have a cat that...
I have a cat that 18 years old the last couple of years she has been diagnosed with hyperthyroidism and has been on methimazole at 2.5 mg once a day we changed her frequency of the medication and I've been giving her 1.25 mg every 12 hours so it's still the same dose last month her T4 levels was at 3.2 since I change the frequency of the dosage I got her test yesterday and her T4 levels came back at .05 which means she's now in hypothyroidism plus she has renal kidney disease and her BUN and creatinine levels are skyrocketing what I need to know is several things how did her levels drop so significantly for her T4 should I continue not giving her medication according to what my vet said? And is her BUN and creatinine levels so high because of the fact that now her kidney disease is showing more since she's in hypothyroidism I'm very confused sad upset and I don't know what to do a lot of people that I belong to in the hypothyroidism group and kidney disease group on Facebook are telling me that to stop giving her medication and summer saying give her her medication my doctor put her on some subcutaneous fluids 50 ml every 2 days please help
Submitted: 7 months ago.Category: Cat Veterinary
Show More
Show Less
Ask Your Own Cat Veterinary Question
Answered in 18 minutes by:
12/30/2017
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Cat Veterinary
Satisfied Customers: 35,500
Experience: University of California at Davis graduate veterinarian with 45 years of experience.
Verified

You're speaking with Dr. Michael Salkin. Welcome to JustAnswer. I'm currently typing up my reply. Please be patient. This may take a few minutes.

Ask Your Own Cat Veterinary Question
Customer reply replied 7 months ago
Ok ty
Customer reply replied 7 months ago
Hello I am still awaiting an answer and I prefer not to use the phone thank you
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

I'm sorry to hear of this with Tiffy Marie. I believe that you're seeing evidence of non-thyroidal illness on her T4. This effect can be profound and the more severe the illness - in her case chronic renal insufficiency - the greater the suppression of total T4 concentrations. In these cases it's important to also perform a fT4 (free T4) which can also be suppressed by non-thyroidal illness but not to the extent of the T4. In that manner, we can determine just how to dose Tiffy Marie at this time. In general, I'll allow these cats to be slightly hyperthyroid as long as they're not hypertensive (has her blood pressure been assessed?) because mild hyperthyroidism is kidney protective. As you've seen, when we overtreat hyperthyroidism the true health of the kidneys is revealed and at 18 years of age there always is some degree of renal insufficiency. Please respond with further questions or concerns if you wish.

Ask Your Own Cat Veterinary Question
Customer reply replied 7 months ago
If I can figure it out is there a way I can send you her lab work that I just got done on her because as I told or said her t4 level last month was 3.2 that's considered hyperthyroidism I got her tested retested last night and her T4 came back at .05 and now she's in hypothyroidism how is this even possible? The vet is telling me to stop giving her medication and her BUN and creatinine levels have skyrocketed I just don't know what to do she has me giving her subcutaneous fluids every 2 days at 50 ml kidney failure
Customer reply replied 7 months ago
Hello I am asking another question are you there
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

You can scan the lab work into your computer and then give me the file link or you can photograph the pages and upload them by using the paperclip icon (if you can see that icon) or by using an external app such as dropbox.com/

Please review my post timestamped 07:35 (my time). I explained how the T4 can act like that.

Ask Your Own Cat Veterinary Question
Customer reply replied 7 months ago
I'm sorry I am not computer literate is there a way I can email the copies to you I'm using my phone right now and the only way I know how to attach a link is why email I can try it on here where it says add
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

I understand. Yes, please contact customer service at ww2.justanswer.com/contact-us or 1-***-***-**** for help in emailing.

Ask Your Own Cat Veterinary Question
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

Thank you. Give me a moment to take a look, please...

Ask Your Own Cat Veterinary Question
Customer reply replied 7 months ago
If you need additional information and you can't read this let me know but I'm basically asking you to focus on her T4 levels from last month to the other day as well as her BUN and creatinine levels from yesterday's results all the way back from July of 2017 to 2016 please let me know if you need additional information thank you so much
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

Regretfully, those images are too out of focus to read. I can only comment on her T4 dropping precipitously at this time. Once again, here's what I said about this: "I believe that you're seeing evidence of non-thyroidal illness on her T4. This effect can be profound and the more severe the illness - in her case chronic renal insufficiency - the greater the suppression of total T4 concentrations. In these cases it's important to also perform a fT4 (free T4) which can also be suppressed by non-thyroidal illness but not to the extent of the T4. In that manner, we can determine just how to dose Tiffy Marie at this time. In general, I'll allow these cats to be slightly hyperthyroid as long as they're not hypertensive (has her blood pressure been assessed?) because mild hyperthyroidism is kidney protective. As you've seen, when we overtreat hyperthyroidism the true health of the kidneys is revealed and at 18 years of age there always is some degree of renal insufficiency."

Ask Your Own Cat Veterinary Question
Customer reply replied 7 months ago
Okay I am totally confused what is non thyroid issue is this basically saying that she was hyperthyroid for a while and the medication brought her down to low and now she's not thyroidal issues but her kidneys are more extensive in illness and is it appropriate to keep stuff keep her off her meds Keep Her On fluids and just like you said get her free T4 done
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

In her case her kidney insufficiency is the non-thyroid issue and is severe enough to suppress her thyroid gland's ability to produce T4. A free T4 test will give us a more accurate assessment of her thyroid state and tell us how to dose her more accurately. Most important at this time, however, is her kidney heath which I can't assess without seeing her test results referable to her kidneys. If her kidneys are functioning very poorly, she would need to be diuresed - at least 72 hours of IV fluids - and I would discontinue the methimazole until I re-evaluated her kidneys following her diuresis. Please continue our conversation if you wish.

Ask Your Own Cat Veterinary Question
Customer reply replied 7 months ago
Since you're unable to read these Labs what specific tests do you want me to send you her numbers that were just taking on Friday I know her bun and her creatinine levels went skyrocketing even from last month to as way back in July of 2016 she obviously is in chronic renal failure but they just went skyrocketing as soon as her T4 levels drop down from 3.2 to .05 I can give you the numbers if you like me to
Customer reply replied 7 months ago
Her albumin level is 6.0 and it's considered above normal, her creatinine levels is 3.9 mg above normal, high protein level is 8.2 grams, her bun levels is 76 mg skyrocketing this is as early as Fridays lab test results. Her globulin levels is registers a zero. A T4 level is .05 now back in November it was 3.2. In July of this year her creatinine levels was .902 which is considered normal her albumin levels was that 2.5 her BUN levels back in July was 53 milligrams above normal then I also noticed that her lymphocytes and monocytes Willow are neutrophils was 83.5 back in July. What is confusing me tremendously is back in March of 2017 this must have been sent in lab her T4 level was .8 which is right at normal so how do I know if her levels was at .8 mg back in March which is normal now all of a sudden her levels grow skyrocketing so I'm going to assume and I'm hoping you can clarify this for me that when she was normal range and not in thyroid issues no hypo or hyper that they will continue to medicate her and it was affecting her other health issues
Customer reply replied 7 months ago
Yeah I am looking at her T4 levels back in March of this year her T4 levels was .08 which is considered non hyper or hypo so why would this doctor that I go to Keep Her On medications this sounds like they were trying to kill her I'm sorry because after her .08 levels they went up and up and up continually
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

Thank you, ***** ***** need to see all of her test results. (Her globulin level is 2.2.) If 2.2 is high normal for creatinine on the machine used to test her blood, 3.9 over 2.2 would be 6.1 and that's classified as Stage IV (out of I - IV) chronic kidney disease indicating the need for IV fluid diuresis. I can only suspect that her vet didn't recognize that Tiffy Marie's kidneys were failing and that the dose of methimazole should have been reduced. As I mentioned above, keeping these cats slightly hyperthyroid is kidney-protective.

Ask Your Own Cat Veterinary Question
Customer reply replied 7 months ago
There is no way I can send my lab results to you directly because if it goes customer service how do I know it's getting to you I don't want to publicize my records to everybody
Customer reply replied 7 months ago
All of this just doesn't make sense all of these regular Labs was were in house I wish I asked them to send them out but I don't know if they're going to read them me
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

Customer service will only send the results to me. This is a public forum, however, and so if you want our conversation to remain private I can ask my moderator to make it so after our conversation is over.

Ask Your Own Cat Veterinary Question
Customer reply replied 7 months ago
Okay I'm going to you said email link you sent to me send them over to you and just go from there
Cat Veterinarian: Dr. Michael Salkin, Veterinarian replied 7 months ago

Sounds good. I'll watch for it. It can take 24 hours for customer service to do this. If you don't hear from me within 24 hours please return to this conversation and let me know.

Ask Your Own Cat Veterinary Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a cat veterinarianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Dr. Michael Salkin Your Own Question
Dr. Michael Salkin
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Cat Veterinary
Satisfied Customers: 35,500
35,500 Satisfied Customers
Experience: University of California at Davis graduate veterinarian with 45 years of experience.

Dr. Michael Salkin is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

It was so professional, so personally concerned (as we were) and you answered all of our questions. George and I are so happy that I found "JustAnswer" on my Google search -- you are now in my "Favorites" list! And, yes we do love our kitty - she makes our life complete!

Bev & GeorgeBoca Raton, FL

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Dr. Gary

Dr. Gary

Cat Veterinarian

3,959 satisfied customers

DVM, Emergency Veterinarian, BS (Physiology)

Dr. Andy

Dr. Andy

Medical Director

4,835 satisfied customers

UC Davis graduate, Interests: Dermatology, Internal Medicine, Pain Management

Dr. Bruce

Dr. Bruce

Veterinarian

4,656 satisfied customers

15 years of experience as a small animal veterinarian

Dr. Scott

Dr. Scott

Veterinarian

3,998 satisfied customers

15 years of small animal, equine and pocket pet experience in medicine and surgery.

Rebecca

Rebecca

Cat Veterinarian

3,944 satisfied customers

More than 30 years of companion animal practice.

Dr. Drew

Dr. Drew

Cat Veterinarian

3,076 satisfied customers

Small Animal Medicine and Surgery

Dr. Deb

Dr. Deb

Cat Veterinarian

2,960 satisfied customers

I have been a practicing veterinarian for over 30 years.

< Previous | Next >

Related Cat Veterinary Questions
I have a 14 year old cat that was diagnosed 2 weeks ago with
Hi....I have a 14 year old cat that was diagnosed 2 weeks ago with hyperthyroidism. She had been eating fairly well but started throwing up yesterday and would not eat last night or this morning. She … read more
DocPaul
DocPaul
Doctoral Degree
718 satisfied customers
I just started my cat on methimazole on Tuesday and she
I just started my cat on methimazole on Tuesday and she started vomiting tonight. I was wondering if I should hold her dose tonight and see how she is in the morning. She only weighs 3.8 pounds and I'… read more
Scott Perry
Scott Perry
Veterinarian
Doctor of Veterinary Medicine
3,205 satisfied customers
I'm running out of options cat (she just turned 16 and
I'm running out of options for my cat (she just turned 16 and is an indoors cat). She was on Methimazole but it made her extremely lethargic and she started vomiting from it. The doctor suggested Hill… read more
Dr Z
Dr Z
Small Animal Veterinarian
Doctoral Degree
3,715 satisfied customers
My 13 year old male cat has hyperthyroid. My vet put m on
My 13 year old male cat has hyperthyroid. My vet put him on 5mg of Methimazole a day. It knocked him on his butt. After reading, I put him on 1/2 of that 2.50/2.50. He was much better dealing with tha… read more
Dr. Michael Salkin
Dr. Michael Salkin
Veterinarian
DVM
35,500 satisfied customers
, We have a female cat called Sundri. She is of Indian
Hi, We have a female cat called Sundri. She is of Indian breed and her age is 3.3 years. We got her routine blood tests done and see that her values are on the higher side. Could you please advise on … read more
Dr. B.
Dr. B.
Veterinary Degree (BVMS)
3,485 satisfied customers
, We have a female cat called Kuku. She is of Indian breed and her age is 2.6 years.
Hi, We have a female cat called Kuku. She is of Indian breed and her age is 2.6 years. We got her routine blood tests done and got to know that her Serum creatinine and BUN values are on the higher si… read more
Dr. Karing
Dr. Karing
Veterinarian
DVM, Magna Cum Laude
426 satisfied customers
Hallo doctor, My 13th year old Siamese cat was diagnosed last
Hallo doctor, My 13th year old Siamese cat was diagnosed last July with hyperthyroidism. I will now tell you the values during that year: 10/7/2013 T4: 16,49, BUN:41,6, Creatinine:0,6 12/11/2013 T4: 5… read more
Dr. Dan
Dr. Dan
Veterinarian and practice owner
Doctoral Degree
5,376 satisfied customers
My 19.5 year old cat started pulling her hair out on her lower
My 19.5 year old cat started pulling her hair out on her lower back while we were away on vacation for 1 week. We had blood work done. The results showed elevated urea 18.5 mmol/L, 204 Creatine umol/L… read more
Dr. Matt
Dr. Matt
Veterinarian
Doctoral Degree
3,555 satisfied customers
my 17 year old male was recently diagnosed hyperthyroid back
my 17 year old male was recently diagnosed hyperthyroid back in february and had some mild elevation in BUN & Creatinine levels. it was very difficult to stablize him with methimazole. he was put on 2… read more
Dr. Michael Salkin
Dr. Michael Salkin
Veterinarian
DVM
35,500 satisfied customers
DearSpecialists, My cat, 12.5 yr old male snowshoe has been
DearSpecialists, My cat, 12.5 yr old male snowshoe has been diagnosed with the beginnings of hyperthyroidism w/ underlying renal failure (T-4, comprehensive blood work). He is eating well,maintaining … read more
Dr. Michael Salkin
Dr. Michael Salkin
Veterinarian
DVM
35,500 satisfied customers
HI Doctor Mike, My cat Nathan has been diagnosed with normal T3, hi T4 of 4.6, hi free T4
HI Doctor Mike, My cat Nathan has been diagnosed with normal T3, hi T4 of 4.6, hi free T4 of 86.2, and high BUN of 51. His other blood tests were normal. He has a history of vomiting, and after trying… read more
Dr. Michael Salkin
Dr. Michael Salkin
Veterinarian
DVM
35,500 satisfied customers
cat: was recently diagnosed as having hyperthyroidism..methimazole
I will pay more for a response in a bonus!!!!!! I really need your help. My cat oscar was recently diagnosed as having Hyperthyroidism and it looks like he may also have CRF. He is currently taking 1.… read more
Dr. Louis Gotthelf
Dr. Louis Gotthelf
Chief Staff Veterinarian
Doctor of Veterinary Medicine
772 satisfied customers
cat: year old female..s K/D dry food..her litter mate..stopped eating
Our cat 13 1/2 year old female cat Lucy has been on methimazole for several years (1/2 5mg pill once a day). The vet also put her on Hill's K/D dry food because her litter mate sadly died of kidney fa… read more
Dr Z
Dr Z
Small Animal Veterinarian
Doctoral Degree
3,715 satisfied customers
cat: vet visit..good level of activity and appetite
Our 17+ year old cat got a hyphema, prompting a vet visit where her BP was 250. Labs were normal and she had a good level of activity and appetite. Norvasc 1.25 mg for three weeks got her pressures do… read more
VetBeth
VetBeth
Veterinary Associate
Doctoral Degree
155 satisfied customers
cat: Kidney disease..make her go into Kidney failure..hyperthyroidism
My 17 year old cat was diagnosed with hypothyroidism 2 years ago. She was diagnosed with Kidney disease 4 years ago. I was afraid to give her Methimzole at the time, because it could make her go into … read more
vetmom4
vetmom4
Veterinarian
Doctoral Degree
976 satisfied customers
My cat, age 16 or 17, was diagnosed with Progressive Chronic
My cat, age 16 or 17, was diagnosed with Progressive Chronic Renal Disease 18 months ago. His blood creatinin levels have consistently shown up in the normal-to-high levels over this period of time. F… read more
Dr Pete
Dr Pete
Bachelor's Degree
1,334 satisfied customers
My cat started taking Methimazole tablet 2.5 mg once daily
My cat started taking Methimazole tablet 2.5 mg once daily three days ago. Today she went into hiding mode and ate very little. She is drinking water and Catsip and continues to have watery stools. Th… read more
Dr. Dan
Dr. Dan
Veterinarian and practice owner
Doctoral Degree
5,376 satisfied customers
My cat has hyperthyroidism and the vet prescribed .5 ml, then
My cat has hyperthyroidism and the vet prescribed .5 ml, then 1.0 mls twice a day. This is not working. She has now prescribed 75 mls of methiazole. I do not know how to judge this on a syringe. Is it… read more
Dr. Scarlett
Dr. Scarlett
Veterinarian
Doctoral Degree
2,225 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x