Urinalysis QUIZ/Lab Flashcards
A urine sample is best analyzed ____ to minimize artifact changes.
1. immediately (<30 minutes) after it is collected from patient
2. after refrigeration for 2 hours
3. after frozen, then thawed
4. after refrigeration for 5 hours, then brought up to room temperature
immediately (<30 minutes) after it is collected from patient
Which statement regarding chemical reagent strip (ie Dipstick) analysis of urine is true?
1. the test should only be performed on the supernatant of centrifuged urine
2. specific gravity using the strip is as accurate as a refractometer
3. individual tests must be interpreted at specific times after urine is applied
4. the urine should be at 50F, for accurate results
- individual tests must be interpreted at specific times after urine is applied
A cat’s urine specific gravity (SG) is 1.005, this is considered
1. dilute
2. isosthenuric
3. concentrated
- dilute
Which statement regarding casts and crystals in urine sediment is true?
1. they must be classified according to type and numbers and recorded
2. they can be ignored because they never indicate disease
3. crystals in urine will always identify uroliths present
4. the presence of casts or crystals always indicate kidney disease
they must be classified according to type and numbers and recorded
What is the urine specific gravity of this patient?
1. 1.345
2. 1.028
3. 10.28
1.028
The ideal amount of urine to be evaluated for a complete urinalysis is _____.
1. 5 ml
2. 10 drops
3. 10 -12 ml
4. 3 ml
10 -12 ml
T/F: The ingestion of certain drugs may alter the color of the patient’s urine.
True
Which statement is true regarding evaluating urine sediment under the microscope
1. white cells and bacteria are identified and counted under the 100x objective
2. crystals and casts are identified and counted using the 10x objective
3. it is not necessary to estimate quantity of white cells seen
4. red cells can never be seen in urine sediment because they rupture
- crystals and casts are identified and counted using the 10x objective
T/F: A cystocentesis performed correctly is safe and provides a urine sample that can be cultured accurately.
True
T/F: The specific gravity (SG or sp.gr.) of distilled water is 1.000.
True
T/F: If a cat patient is 7% dehydrated and the urine specific gravity is 1.012, the kidneys are concentrating appropriately.
False. USG should be 1.030
T/F: No useful information can be obtained from urine collected off of a clean cage floor.
False
T/F: If sperm is seen in urine sediment, this indicates disease in the patient.
False
T/F: When collecting a voided urine sample, the initial part of the urine stream will provide the most accurate information.
False
T/F: Because it takes kidneys days to respond it injury/illness, there is no reason to evaluate urine samples more often than once per week.
False
Crystal type
Number per field
Struvite & amorphous phosphates
TNTC
Cell type at arrow heads:
At full arrows?
Red cells
White cells
Cell type indicated by short arrows:
Long arrows:
WBCs
Transitional epithelial cells
Cell type at this catheterized sample?
Epithelial squamous
Is this a sediment substance or a contaminant
contaminant
What is the cast type highlighted in yellow?
Wax
Crystal type:
Tyrocine
