Thank you to
@Stacy & Asia @tiffmaxee @Marje and Gracie @Wendy&Neko for stopping by with your wisdom. There's a lot to digest, so let me try to address what I can.
When the vet called with the results, he said everything looked great, but that Jenks had mildly elevated pancreatic enzymes consistent with diabetes. Had I not insisted on a copy of the report, I wouldn't have known about this other stuff. So right now I'm fighting some anger, and some fear because what I'm reading about the creatine kinase and heart involvement makes me very, very nervous.
Elevated Pancreatic Enzymes - The Spec fPL is 3.5x the max reference value. To me that doesn't seem "mild." But as
@Marje and Gracie pointed out, a high Spec fPL does not necessarily equate to pancreatitis. While I understand that there's not one clear diagnosis for this, it's unclear if Jenks exhibits the usual symptoms.
Weighing in favor of a finding of pancreatitis: A recent bout of vomiting and diarrhea, followed by continuing inappetance. Lethargy.
Weighing against a finding of pancreatitis: He had two nights of acute vomiting and diarrhea 10 days ago, but nothing since and nothing similar in the last 5 years. He's not dehydrated. The doctor did not indicate that he felt anything abnormal in the abdomen during the physical exam. Jenks shows no signs of pain or discomfort. Temperature was normal. BG is not elevated, in fact, it's better than ever.
Vet recommendation: He said that even if it was pancreatitis, all he'd do is give fluids in the office and send him home, which seemed unnecessary because Jenks was drinking normally at home and didn't show any signs of dehydration.
Elevated White Cell Count - Innate immune cells up, adaptive immune cells down. According to IDEXX, the common causes for ______ are:
Decreased lymphocytes: Stress, acute systemic inflammation
Increased neutrophils: Inflammatory response (infection, immune related disease, tissue necrosis)
Increased monocytes: Inflammatory response (infection, immune related disease, tissue necrosis)
My thoughts: I'm not sure these are very indicative of anything by themselves, and may be a result of something else that's going on. The least concerning of the out-of-whack values, especially if the stress of the office can be a causative factor.
SDMA - A senior cat with perhaps some early stage kidney dysfunction? Not really a surprise I guess, but I'd like to learn more about what, if anything, we can do to ward it off to the best extent possible.
Creatine Kinase - 10x the max reference value and didn't even warrant a mention by the vet. But this is the one that concerns me the most. It was apparently worth a re-test by IDEXX, who noted "RESULT VERIFIED BY REPEAT ANALYSIS". I'm afraid there's no baseline number to compare to, so this is the only result we have to work with.
If it's heart involvement, what do we do and who do we see???? Is it clinically relevant that he's lost 3 pounds in the last year? What if some of that was from muscle?
According to IDEXX, "Significant elevations in CK are usually the result of skeletal muscle damage." Not sure how he would have that, but ok....
Common causes include (I have used a strike out on ones that can reasonably be ruled out as an issue):
Muscle trauma
Restraint
Difficult venipuncture
Hit by car/other trauma
Prolonged recumbency
Surgical procedures
Muscle biopsy
- Intramuscular injections
My notes: I shoot his insulin with an 8mm needle into a tented flap of skin along his belly just in front of his right rear leg. There shouldn't be any muscle there (right???), and this is the only injection he receives.
Muscle inflammation
- Ischemia (Post-infarct ischemia, Aortic thromboembolism, Disseminated intravascular coagulation [DIC])
Necrosis (Snake/spider envenomation, Heatstroke)
- Infectious (Toxoplasma sp. Neospora sp. Pyogenic bacterial infections Endocarditis Systemic infections (septicemia) Parasitic)
- Inflammatory non-infectious myositis (Immune-mediated polymyositis, Eosinophilic myositis)
My notes: I'm not educated enough on these topics to exclude anything other than venomous bites.
Exertional disorders
Exertional rhabdomyolysis
Seizures
Uncommon Causes include:
- Congenital/inherited degenerative myopathies (Muscular dystrophy, Myotonia, Hyperkalemic periodic paralysis)
Nutritional myopathies (Hypokalemia, Taurine deficiency)
Toxic
Ionophores (e.g. monensin)
Castor bean (ricin)
Gossypol (cotton seed meal)
My notes: He's definitely not poisoned.
Neoplastic
Artifact
- Hemolysis interferes with some CK assays
My notes:
@Marje and Gracie asked me to check the report for any mention of this. There are no additional notations for this test.
Miscellaneous disorders
Urinary obstruction
- Vomiting
Shivering/trembling
Malignant hyperthermia
Hypothermia
My notes: Vomiting is what precipitated this visit, but I can't find any info about how this factor would affect the numbers.