Hannah Zulueta How Often Should We Actually Be Checking
A stage-based guide to baseline testing vs. crisis intervals
A client asked me something simple that turned out not to have a simple answer. Her dog was newly diagnosed, and one vet on the emergency team said monthly labs, her regular vet said every six months. She wasn’t confused about the disease. She was confused about the calendar.
Stage sets the baseline rhythm for labwork. It doesn’t set the actual schedule. Your vet does, based on this specific dog, this specific trend, and what’s happening clinically right now. Two dogs at the same stage can need different intervals. That’s not inconsistency. That’s the plan working correctly.
What “a full panel” actually means
When I say full panel, I mean a full panel. At my own vet’s office, this is what they call the Senior Panel, and it’s the standard I recommend for any dog with kidney disease at any stage. A basic in-house chemistry strip isn’t enough to build a plan around. I always ask that urine be checked too, and I ask the clinic to collect it themselves rather than relying on a free catch sample from home, because the way it’s collected affects what the results can tell you.
For what each value on that panel actually means, SDMA, creatinine, BUN, phosphorus, potassium, and UPC, I’ve broken each one down in plain words here: Dog Kidney Bloodwork Explained. This page picks up where that one leaves off, on the question of timing rather than meaning.
One thing worth doing every single time, whatever the interval: bring your dog in fasted and well hydrated for the draw. A meal beforehand can nudge creatinine and BUN up for hours, and dehydration concentrates the blood enough to move numbers on its own. Same conditions each time is what makes the trend trustworthy.
Before CKD goes on the chart
A single high number doesn’t earn a CKD diagnosis. The finding has to be confirmed on more than one occasion, in a stable, hydrated dog, with other causes ruled out first. That confirmation step, and what each stage actually means once a diagnosis is made, is covered in full over on IRIS Stages of Kidney Disease in Dogs. What matters here is what that confirmation window means for your calendar: the first abnormal result isn’t the end of the conversation, it’s the start of a short recheck window before anyone commits to a stage.
Baseline frequency by stage
Tap a stage to see the general starting point. Your vet will adjust this to your dog.
Kidneys are damaged but compensating well. Bloodwork may still look close to normal.
This is the stage where most dogs feel completely fine, which is exactly why testing on a schedule matters more than waiting for a symptom to show up.
Mild azotemia is present. Some dogs are still asymptomatic, others show early signs like increased thirst.
If treatment just started or a dose just changed, your vet may want to see a recheck sooner to confirm the plan is actually doing what it’s supposed to.
Moderate azotemia. Extrarenal signs like appetite changes, nausea, or weight loss are common.
This is often where phosphorus, potassium, and blood pressure start needing their own attention alongside the core panel.
Severe azotemia. Quality of life and comfort become the central focus alongside management.
Dogs at this stage are more prone to sudden crises, so the interval tends to tighten even when things look steady.
Baseline tracking vs. crisis intervals
Everything above describes a stable dog on a maintenance rhythm. That rhythm changes the moment something isn’t stable. A new diagnosis, a medication change, a hospitalization, a sudden drop in appetite, all of these shift the schedule from months to days or weeks until things settle back down.
What I told her
Both vets were right. The emergency team was managing a dog who had just been unstable, so they wanted eyes on him weekly at first. Her regular vet was describing where things would land once he settled into a maintenance rhythm at his stage. Neither was wrong. They were describing two different moments in the same disease.
- Ask your vet which rhythm you’re in right now, stabilizing or maintaining, so the interval makes sense.
- Request the full panel, SDMA, creatinine, BUN, USG, and UPC together, along with vet-collected urine.
- Bring me the results once you have them, and I’ll help build the feeding plan around the stage your dog is actually in.
Common questions
How often should a dog with kidney disease get bloodwork?
It depends on stage and stability, not a fixed number for every dog. As a general starting point, Stage 1 and 2 dogs are often checked every three to twelve months, while Stage 3 and 4 dogs are checked every four weeks to three months. Your vet sets the actual interval.
Do labs get run more often right after a kidney diagnosis?
Yes. A fresh diagnosis, a new medication, or any instability usually means closer monitoring at first, days to a few weeks apart, until things settle into a stable pattern your vet can space out.
Can one bad lab result mean my dog has kidney disease?
Not on its own. A single abnormal result is a reason to recheck, not a diagnosis. It has to hold up on more than one occasion in a stable, hydrated dog before it’s treated as real.
Is a basic blood panel enough to monitor kidney disease?
Not by itself. A full panel, plus urine collected at the clinic, gives a much fuller picture than a basic in-house chemistry strip.
Does my vet decide how often to test, or is there a fixed schedule?
Your vet decides. Stage gives a general baseline, but two dogs at the same stage can need different intervals depending on how that specific dog is doing.
Related on the Kidney Hub
- IRIS Stages of Kidney Disease in Dogs, In Plain Words, for what each stage means and what it asks for.
- Dog Kidney Bloodwork Explained, for what SDMA, creatinine, BUN, phosphorus, potassium, and UPC actually measure.
Sources
International Renal Interest Society. IRIS staging system. IRIS Kidney.
International Renal Interest Society. (2023). IRIS staging of CKD, modified 2023.
Grauer, G. F. Treatment guidelines for chronic kidney disease in dogs and cats. Today’s Veterinary Practice.
Hannah Zulueta obtained her Certificate in Canine Nutrition from CASI Institute. She is also studying for her Doctorate in Acupuncture, Traditional Chinese Medicine, and Herbalism from the esteemed Pacific College of Health and Medicine. If you’re as keenly interested in health for yourself, visit her website for human health: Satori Acupuncture and Herbs.
She resides in San Diego with her three dogs, Maggie, Orbit, and Mr. Higgins.
She is available for one on one consultations. She develops evidence-based recipes that meet both NRC and AAFCO nutritional standards while integrating the therapeutic food principles of Traditional Chinese Veterinary Medicine into her formulations.
Additionally, you can find her sharing free content on Instagram.
Hannah Zulueta obtained her Certificate in Canine Nutrition from CASI Institute. She is also studying for her Doctorate in Acupuncture, Traditional Chinese Medicine, and Herbalism from the esteemed Pacific College of Health and Medicine. If you’re as keenly interested in health for yourself, visit her website for human health: Satori Acupuncture and Herbs.
She resides in San Diego with her three dogs, Maggie, Orbit, and Mr. Higgins.
She is available for one on one consultations. She develops evidence-based recipes that meet both NRC and AAFCO nutritional standards while integrating the therapeutic food principles of Traditional Chinese Veterinary Medicine into her formulations.
Additionally, you can find her sharing free content on Instagram.
