URINALYSIS AND BODY FLUIDS CERTIFICATION QUESTIONS AND ANSWERS RATED 100% CORRECT!!
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URINALYSIS AND BODY FLUIDS
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URINALYSIS AND BODY FLUIDS
URINALYSIS AND BODY FLUIDS
CERTIFICATION QUESTIONS AND
ANSWERS RATED 100% CORRECT!!
What substance is normally found in urine that is principally
responsible for its yellow coloration? Correct Answer Urochrome
In certain malignant disorders, what substance is found in the
urine that turns...
URINALYSIS AND BODY FLUIDS CERTIFICATION QUESTIONS AND ANSWERS RATED 100% CORRECT!! What substance is normally found in urine that is principally responsible for its yellow coloration? Correct Answer Urochrome In certain malignant disorders, what substance is found in the urine that turns the urine dark brown or black on exposure of the urine to air? Correct Answer Melanin What is the expected pH range of a freshly voided urine specimen? Correct Answer 4.5 to 8.0 Urine specimens should be analyzed as soon as possible after collection. If urine specimens are allowed to stand at room temperature for an excessive amount of time, the urine pH will become alkaline because of bacterial decomposition of...? Correct Answer Urea What term is defined as a urine volume: 1. In excess of 2000mL/24hr period? 2. Less than 500mL/24hr period? 3. Completely suppressed? 4. Increased level of dissolved solute? Correct Answer 1. Polyuria 2. Oliguria 3. Anuria 4. Hypersthenuria The reagent test strips used for the detection of protein in urine are MOST REACTIVE to...? Correct Answer Albumin A urine specimen that is being shaken and suspected of having an increased concentration of WHAT if it exhibits: 1. Yellow foam? 2. White foam? Correct Answer Normal urine does not form foam on being shaken 1. Yellow foam: increased bilibrubin 2. White foam: increased urine protein How should controls be run to ensure precision and accuracy of the reagent strips used for the chemical analysis of the urine? Correct Answer Pos and Neg controls should be run on daily basis The colorimetric reagent strip test for protein is able to detect as little as 5 -20mg/dL of protein. What may cause false -positive urine protein reading if pH...? Correct Answer pH is greater than 8.0 "Isosthenuria" is a term applied to a series of urine specimens from the same patient that exhibit a...? What causes this condition? Correct Answer Fixed Specific Gravity of approximately 1.010 Severe renal damage in which both of diluting and concentrating ability of the kidney have been severely affected What is the major ORGANIC and INORGANIC substances found in urine? Correct Answer Organic: Urea Inorganic: Na What is "ketone bodies?" Correct Answer A buildup of intermediary product is resulted (such as Aceto -acetic acid, Beta -
hydroxybutyric acid, and Acetone) when body is unable to completely degrade the fat +seen in inadequate carbohydrade intake (or starvation), inadequate carbohydrate metabolism, and diabetes mellitus The principle of the colorimetric reagent strip test for Hgb is based on the peroxidase activity of Hgb in catalyzing the oxidation of a dye with peroxide to form a colored compound. This method may yield false -positive results for the presence of Hgb when the urine specimen contains...? Correct Answer Myoglobin +just like Hgb, this globin has peroxidase activity A reagent test strip impregnated with a diazonium salt such as diazotized 2,4 -dichloroaniline may be used to determine which analyte? Correct Answer Bilirubin +The MAJORITY of bilirubin bounds to albumin to form unconjugated bilirubin. This is not soluble product and cannot be excreted in urine +The remainder (MINORITY) of bilirubin has been processed in liver, and conjugated. This is water soluble and excreted in urine *seen in Hepatic and Obstructive biliary tract diseases What affects "specific gravity" of urine? Correct Answer ONLY dissolved solute +glucose +etc With infections of the urinary system, WBCs are frequently seen in the urine sediment. What type of white blood cells is seen the MOST frequently in urine sediment? Correct Answer Neutrophil +has to be examined ASAP because leukocytes tend to lyse easily
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