Urinalysis and body fluids Questions and Correct Answers | Latest Update

what are some reasons for specimen rejection? -:- unlabeled containers non-matching labels and requisitions contaminated specimens - feces, tissue contaminated container delayed or improper transport* within what time span of collection must you test urine? -:- 2 hours - affects specime...

A 3-year old girl was brought to the ER with a temperature of 103ºF, lethargy, and cervical rigidity. Three tubes of cloudy CSF were delivered to the Lab, and preliminary test results showed: WBC: 4,500/µL Differential: 88% neutrophilsGlucose: 15 mg/dL 12% lymphocytesProtein: 140 mg/dLGram ...

Which of the following would be most affected by allowing a urine sample to sit at room temperature three hours before analysis? A. Occult blood B. pH C. Specific gravity D. Protein -:- B. pH Which of the following specimens usually eliminates contamination of the urine with entities from...

The average daily output of urine is: a: 200 mL b: 500 mL c: 1200 mL d: 2500 mL -:- c: 1200 mL An unidentified fluid is received in the laboratory with a request to determine whether the fluid is urine or another body fluid. Using routine lab test, what tests would determine that the flui...

Lecithin: sphingomyelin ratio (L:S Ratio)- what is the purpose, and the L:S ratio. -:- Purpose= Assessment of *fetal lung maturity* Method= Thin layer *chromatography*. Comment= L:S ratio *>2.0 signifies maturity* Foam stability index (shake test) -:- Purpose= assessment of *fetal lung ma...

Which urine color is correlated correctly with the pigment-producing substance? -:- Deep yellow urine and yellow foam with bilirubin Which statement best describes the clinical utility of tests for microalbuminuria? -:- Testing may detect early renal involvement in diabetes mellitus The normal...

What substance is normally found in urine that is principally responsible for its yellow coloration? -:- 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? -:- Melanin What is the expected...

After receiving a 24-hour urine for quantitative total protein analysis, the technician must first: -:- Measure the total volume False results in urobilinogen testing may occur if the urine specimen is: -:- Exposed to light A clean-catch urine is submitted to the laboratory for routine urina...

which statement regarding renal function is true? :~~ glomeruli are far more permeable to water and salt than other capillaries which statement regarding normal salt and water handling by the nephron is correct? :~~ the ascending limb of the tubule is highly permeable to salt but not water whi...

All of the following are considered normal functions of the kidney -:- regulating body hydration, elimination of nitrogenous wastes, regulating electrolyte balance The approximate number of nephrons contained in each kidney is: -:- 1,000,000 The order of blood flow through the nephron is: ...

A patient with uncontrolled diabetes mellitus will most likely have -:- pale urine with high specific gravity -High specific gravity is due to the glucose in the urine. People w/diabetes have polyuria, so the volume of urine dilutes the urochrome (color), making it pale. Urine specimen of a b...

what are the main physiological responsibility of CSF? -:- nutrients and nervous tissue remove metabolic wastes produce mechanical barrier to cushion to brain and spinal cord what are the three layers of meninges that line the brain and spinal cord? -:- dura mater arachnoid pia mater ...