Urinary Tract Diseases Flashcards
Urinary tract clinical signs
List
Dysuria Hematuria Pyuria Polyuria/polydipsia Oliguria Anuria Inappropriate urination
Dysuria
Difficulty urinating
May be confused with constipation
Straining with small drops of urine
Straining to urinate
Hematuria
Blood in urine
May be microscopic
Flank blood
Pyuria
Pus in urine
Gives off foul smell
Associated with bacterial infection
Polyuria
Polydipsia
Can indicate renal disease(kidney failure, UTI), endocrine disease (hyperthyroidism) Normal response to excessive drinking Certain medications (steroids/diurectics)
What to ask for polyuria and polydipsia
Ask if they are cleaning liter box/if it’s more dirty
Ask if pet needs to go out more?
Accidents in house?
Needs to go during night? (Most pets need to hold bladder over night)
Filling up water more?
Oliguria
Scant urine
Less urine than normal
Litter box cleaner, goes outside less
May see less urine at a time, smaller volumes
Anuria
No urine Emergency Longer goes on, likely bladder rupture Very painful, pets uncomfortable, try to go but can't Cry, vocalize, appear in distress
Inappropriate urination
Cry for help
Incontinence from behavioural/senility/liter box aversion
Common reason for owners to bring to clinic /euthanize
More common with cats
Why can inappropriate urinating be associated with old age
Forget where the liter box is (senile)
Going blind, harder to get downstairs to box
Hard time getting into box (arthritic)
Can’t hold urine in to make it to the box
Why is inappropriate urination associated with behavioural issues
Don’t like liter, box, location
Had bad experience in box (noise, other cats)
Why is inappropriate urination associated with spraying
Done on vertical surfaces
Normal marking for intact male
Incontinence
Common in spayed females
Wet bed, licking vulva excessively, staining of perineum
Can be due to lack of estrogen (hormone incontinence)
Dogs more than cats
When sleeping, relaxed, walking
Urine leaks out.
Age, lose “tone”
Weight loss
Non specific sign
Protein loss in urine
Anorexia
Anorexia
High BUN (blood, urinary, nitrogen) causes appetite suppression
Feel nauseous, may vomit
Can develop sores in mouth (ulcers) that hinder appetite
General malaise, lethargy
Abdominal pain
Non specific sign
Blocked cat or dog will be very painful in abdomen
If unable to urinate, bladder will be very sore
Resents palpation of abdomen, may cry
Kidney infection can cause
Area of pain can localize problem
Anemia
Kidneys produce erythropoietin
Hormone that stimulates bone marrow to produce RBC
If kidney issue, less erythropoietin is produced
Find on CBC
What equals number of RBC in blood
Hematocrit-HTC
Packed cell volume PVC
Ways to collect urine
Free catch
Catheter
Cystocentesis
Free catch
Cheap
No stress on animal
Easily contaminated from environment or urethra (not great if culture needed)
How to do a free catch with dogs
Use cup, bowl, ladle under urine stream while outside
Some dogs more shy, harder to catch
Low to ground dogs harder
How to do free catch with cats
Use empty liter box or none absorbable cat liter
Scavenged free catch
Use syringe to draw up urine from floor, kennel
Catheter
Traumatic to urethra, difficult in female
Determines if blockage present
Used for bladder contrast radiographs
Increases risk of bladder infection
Useful only if small amount of urine present
Extra cost
Only used for male dogs (or anesthetized blocked cats)
Trauma or stress to pets
Placing a female catheter
Urinary opening inside vagina
Very difficult to place catheter
When is a catheter essential
Concern for blockage to flush urinary tract
If injecting contrast material into bladder
How to insert catheter
Clean area Wear gloves Place catheter with lube Remove first section of urine into another container Can do with C&S
Cystocentesis
Clean urine sample directly from bladder, quick
No trauma to urethra but can risk damage to bladder wall
May get contamination from RBC
Best for C&S
5 things we can do with urine
1) visual exam
2) specific gravity
3) chemistry
4) sediment exam (cytology)
5) culture and sensitivity
Visual exam
Notes blood, cloudy, concentration
Look at urine and record appearance
Colour, clear/turbid, any debris, smells
Can see if light (dilute) or dark (concentrated)
Red/brown-blood
Normal-white/yellow
Specific gravity
Determine with refractometer
Gives specific gravity as it relates to water (1.000)
Urine is at higher end if dehydrated (to conserve water)
If concentrated, kidneys doing their job
If not, pet may have had large drink or not able to concentrate urine
Multiple samples to confirm problem
First morning sample best (more concentrated)