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Kidney Disease In Dogs
Kidney Diseases In Dogs:
Your dog has two kidneys which filter the blood and remove body wastes which would otherwise build up and "poison" the system.
If the kidneys are damaged, wastes may not be effectively removed,
resulting in illness. There are two main types of kidney disease:
chronic and acute kidney disease.
Chronic Kidney Disease In Dogs:
In chronic kidney disease, there is a slow destruction of the
kidney which may take months or years. This may be caused by low
grade infection (by virus, bacteria or parasite), by poisons,
chemicals, or physical damage such as a car accident. In most
cases the cause is not determined.
Signs of disease are not seen until two-thirds of both kidneys are
destroyed, because until then the remaining healthy kidney tissue
manages to cope. Once the two-thirds mark is passed signs of
chronic kidney disease will start - often suddenly.
Signs Of Chronic Kidney Disease:
These signs are not specific for chronic kidney disease, but may include:
Depression.
Vomiting and Diarrhoea.
Mouth Ulcers.
Changes in the amount and nature of urine (usually larger quantities of
dilute urine are passed, crystals in the urine are evident).
Weight Loss.
Treatment Of Chronic Kidney Disease:
Treatment is aimed at reducing further damage and easing the "work
load" on the kidneys. There is no cure and the damage is
permanent, but often treatment can make the dog comfortable and greatly
prolong his life.
Acute Kidney Disease In Dogs:
Acute kidney disease in dogs (actually a group of conditions) differs from the chronic type in two main respects:
1. The sudden onset of signs following damage to the kidneys.
2. If the disease is halted quickly enough the outlook for the patient can be good and recovery complete.
Causes Of Acute Kidney Disease:
There are many, and damage by agents listed below may not always result
in kidney damage. In some diseases (for example, Canine
Hepatitis) the kidney is not the main organ affected.
1. Infection by bacteria, i.e. Leptospirosis.
2. Infection by a virus i.e. Canine Hepatitis.
3. Damage by chemicals such as: antifreeze, lead, carbon, mercury.
4. As a sequel to some venomous snake bites.
5. Shock.
When Should You Call The Vet?
The signs are not specific for acute kidney disease, but may include the following:
1. Vomiting.
2. Appetite Loss.
3. Depression.
4. Pain in the mid-back (lumbar) area.
5. Change in urine output - may be more or less.
6. Change in urine - discolored, or have clots, or cause pain in passing.
7. Dehydration (shown as inelasticity of the skin).
Diagnoses is made by blood and urine tests and in some cases a sample
of the kidney is taken (a renal biopsy) and examined microscopically by
a pathologist.