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Can you get a blood smear from a dog''s saliva (if ...

Sent to Dog Experts January 18 2008 at 8:37 AM
   

Can you get a blood smear from a dog''s saliva (if there''s blood in it) rather than inserting a needle into a vein?

 

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Age: 8; Male; Breed: Polish Lowland Sheepdog

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January 18 2008 at 9:07 AM (30 minutes and 46 seconds later)
         
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Hello there!

It's not likely that you'll get a proper blood sample from the dog's saliva, as it would be highly diluted and contaminated with food particles and all of the other things floating around inside the mouth. It's likely you've got a lot less blood than you realize due to the dilution. You would likely get skewed results, especially if you were using the sample for glucose testing or something along those lines where instrumentation is involved and a certain amount of blood needs to be present in order for the testing to be accurate.

Some more common tests such as CBC (complete blood count) evaluates the populations of platelets, and red and white blood cells and the hematology instruments take counts, which are then compared to normal levels, so you can see how dilution or contamination would affect this.

Let me know if you have any additional question! And good luck with your Polish Lowland Sheepdog - they're quite uncommon! I grew up with one - a wonderful breed!
***Please ACCEPT if my answer was helpful!****

-Mia Carter
Pet Expert


• A timely visit to your vet is the best way to get a correct diagnosis! • Please "ACCEPT" if my answer was helpful! •
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January 18 2008 at 9:16 AM (8 minutes and 36 seconds later)
         
Mia,
The reason I ask is because my 8 year old Poland Lowland died in November -- my dog was brought into a vet and after seeing bllod from his mouth, eyes red, she said she could not get a blood sample without anesthesia -- 21 hours later, Woody was carried back in, suffered a seizure and died the following night. Diag.: ITP -- thrombocytopenia -- couldn't the first vet have 1. gotten a blood sample other than anesthicizing?
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January 18 2008 at 9:37 AM (21 minutes and 20 seconds later)
         
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Hi there.

Oh, I'm so sorry to hear about your boy! Please accept my condolences.

I think in your case, that if thrombocytopenia or another condition where blood clotting is involved was suspected from the onset, she may have been hesitant to get a blood sample for fear of putting your dog in a situation where the bleeding could not have been controlled.

Forgive me if I'm telling you something you already know, but from what I know of this condition, it can result in the body producing faulty blood cells that impede clotting. ITP, as I'm sure you know, is an immune-system illness that involves insufficient platelets (a component of blood), which contribute to proper blood clotting. Without the clotting function, trying to get a blood sample from a vein or even from a prick could have resulted in uncontrolled bleeding and if the dog was not under anesthesia, this collection process would have likely been made more difficult. It's difficult to know exactly what her reasoning was, as I don't know what was known at the time in terms of the dog's true condition, but I think that in maintaining a conservative stance, your vet opted to collect the sample under anesthesia. As for whether she could have gotten a sufficient sample for testing from the saliva, probably not. It depends on exactly what she was testing for and her method of testing. If she simply needed a sample to make up a smear on a slide for examination under the microscope, she may have obtained some information - it's a more basic, preliminary exam though, looking at the general appearance of the cells. She may have learned some information on the general appearance, but as for their relative percentages, this would have likely been very off kilter due to dilution, so much of the important information would have been skewed or missing.

From what you describe, I think the error may have been in the assessment of the seriousness of the dog's condition. Maybe had everything been known that is known now, he could have received immediate testing at your vet's, or maybe your vet would have sent him to a referral hospital that was open 24 hours if she had realized the situation was as urgent as it ended up to be. But again, hindsight is always 20-20.

Let me know if there's anything else I can do to help you. And again, please accept my condolences - I know how difficult it can be to loose an animal so abruptly, and you're always left wondering and second guessing. But as long as you did what you believed was right, it's all you can ask for.
****Please ACCEPT if my answer was helpful!****

-Mia Carter
Pet Expert

Edited by Mia Carter on January 18 2008 at 9:58 AM



• A timely visit to your vet is the best way to get a correct diagnosis! • Please "ACCEPT" if my answer was helpful! •
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January 18 2008 at 11:11 AM (1 hour and 33 minutes and 29 seconds later)
         
Could you imagine that this WAS a 24-hour Vet hospital emergency center that misdiagnosed! After her "cursory" exam of Woody, she sent us home with 6 - 50 mg. Tramadol and instructed us to give it to him every 8 hours! (Even tho he showed no signs of pain during her exam) What is your opinion that the Tramadol could have increased his chances of a brain bleed (which is what he ultimately died from) Also, I'd like to know that IF he was diagnosed 21 BEFORE HIS SEIZURE and placed on prednisone -- what is your educated opinion -- being that he would have been "caught" before complications occurred?
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