You've been given a green urine specimen with a strong foul odor of ammonia.
1. What could be the cause?
2. What urine results would you expect to be abnormal? - ️️1. Bacterial proliferation
in old specimen
2. Elevated nitrites, decreased bilirubin & urobilinogen, increased pH
What are the...
UA & BF Exam 1
You've been given a green urine specimen with a strong foul odor of ammonia.
1. What could be the cause?
2. What urine results would you expect to be abnormal? - ✔️✔️1. Bacterial proliferation
in old specimen
2. Elevated nitrites, decreased bilirubin & urobilinogen, increased pH
What are the benefits of automated urinalysis - ✔️✔️increased turn around time;
consistency in resulting; decreased specimen handling
Urochrome is a pigment that - ✔️✔️is lipid soluble; is excreted in urine, imparting a
characteristic amber color; may be deposited in subcutaneous fat tissue in renal failure;
darkens on exposure to light
State three types of urine specimens and differences and diagnostic utility of each -
✔️✔️Timed, Random, and First-Morning
Describe the collection techniques and differences between each of the following
speciments - ✔️✔️Random void, clean-catch, catheterized, suprapubic, and pediatric
List the changes possible in unpreserved urine - ✔️✔️(Increased)/(Decreased)
Color darkening/Clarity
Odor/Glucose
pH/Ketones
Nitrite/Biliribin(urobiliongen)
Bacteria/Trichomonads
What is the most common method of preservation - ✔️✔️Refrigeration
What is reflectance photometry - ✔️✔️the detection and quantification of light intensity
that scatters from a surface
What is flowcell digital imaging - ✔️✔️produces digital images of urine particles using
software to identify, categorize, and quantify the particles
What is flow cytometry - ✔️✔️urine particles are quantified and categorized based on
fluorescent staining, light scatter, and impedance characteristics
You've been given a pale yellow specimen with a specific gravity of 1.030.
1. What could be the cause?
, 2. What urine results would you expect to be abnormal? - ✔️✔️1. Large amounts of
high molecular weight substances
2. Elevated glucose or protein
You've been given a dark yellow specimen with yellow foam.
1. What could be the cause?
2. What urine results would you expect to be abnormal? - ✔️✔️1. Bilirubin
2. Elevated Bilirubin
You've been given a cloudy red specimen.
1. What could be the cause?
2. What urine results would you expect to be abnormal? - ✔️✔️1. Hematuria
2. Elevated Occult Blood
It is summer and Mrs. Smith frequently shops at the farmer's market near her home.
She has noted that she began producing a red colored urine, and brings a sample to
her physician.
1. What could be the cause of her red urine?
2. The physician request that she collect a fresh specimen at his office. The urine is
clear and yellow in color with a pH of 5.5. Is this a discrepant result? - ✔️✔️1. She eats
fresh beets which can cause a red color
2. Yes
Reagent strip SG indirectly estimates urine density on the basis of - ✔️✔️charged
solutes
A urine specimen is received in the laboratory with the patient's name, the date, and the
time of collection on the lid of the container. You should - ✔️✔️reject the specimen as
unlabeled
Urine color may be indicative of - ✔️✔️body hydration; urine concentration; pathologic
disease
Clarity in a freshly voided urine from a healthy individual is - ✔️✔️clear, hazy, or slightly
cloudy
What will affect urinalysis results - ✔️✔️preservation method; collection method; time
of collection
What can result in a turbid urine - ✔️✔️RBCs, medication, bacteria
Substances that require elimination from the body by renal excretion include -
✔️✔️urea, creatine, and uric acid
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