Urinalysis: What is your interpretation? - DVM
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Urinalysis: What is your interpretation?


DVM360 MAGAZINE


The best interpretation of the specific-gravity value of this urinalysis is that:

a. The patient's kidneys have lost the ability to concentrate and dilute urine.
b. The patient's kidneys have lost the ability to concentrate urine.
c. The patient's kidneys have lost the ability to dilute urine.
d. No conclusions can be established about the ability of the patient's kidneys to concentrate and dilute urine.
e. The patient has a fixed urine specific gravity, probably as a result of primary renal failure.

CASE 6

Consider the following results obtained by analysis of a voided urine sample from a 9-yr old, male Miniature Poodle:

Color - yellow
Protein - 1+
Turbidity - cloudy
RBC - 5-10/hpf
Specific gravity - 1.037
WBC - 5-10/hpf
pH - 6.0
Casts - many granular/lpf
Glucose - negative
Epithelial cells - moderate/hpf
Acetone - negative
Bacteria - none
Bilirubin - negative
Crystals - few calcium oxalate/hpf
Occult blood - 1+

The most probable interpretation of the results of this urinalysis is that the patient:

a. Has acute primary renal failure.
b. Has chronic primary renal failure.
c. Has acute renal disease.
d. Has chronic renal disease.
e. Is normal.

CASE 7

Consider the following results obtained by analysis of a voided urine sample from a 5-year-old, male Golden Retriever:

Color - yellow
Protein - 1+
Turbidity - cloudy
RBC - 0 - 1/hpf
Specific gravity - 1.045
WBC - 0 - 1/hpf
pH - 7.5
Casts - none
Glucose - negative
Epithelial cells – occasional/hpf
Acetone - negative
Bacteria - none
Bilirubin - negative
Crystals - occasional struvite/lpf
Occult blood - negative

The best interpretation of the significance of the proteinuria is that it is:

a. Clinically insignificant.
b. Indicative of generalized glomerular disease.
c. Indicative of generalized tubular disease.
d. Indicative of damage to the transitional epithelium lining the urinary tract.
e. Indicative of preglomerular proteinuria.

CASE 8

Consider the following results obtained by analysis of a voided urine sample obtained from a 9-year-old spayed female Boxer.

Color – light yellow
Protein - negative
Turbidity - clear
RBC - negative
Specific gravity - 1.003
WBC - negative
pH - 6.5
Casts - none
Glucose - negative
Epithelial cells - none
Acetone - negative
Bacteria - none
Occult blood - negative

The best interpretation of the specific gravity value of this urinalysis is that:

a. There is an insufficient population of viable nephrons to concentrate glomerular filtrate.
b. There is a sufficient population of the viable nephrons to dilute glomerular filtrate.
c. There is a sufficient population of nephrons to concentrate or dilute glomerular filtrate.
d. All of the nephrons of both kidneys are functional.
e. More than two-thirds of the nephrons of both kidneys are nonfunctional.


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Source: DVM360 MAGAZINE,
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