Care of Reagent Strips for Testing
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Questions and Answers

What is the clinical significance of proteinuria?

  • Only seen in diabetic nephropathy
  • Degrees include mild, moderate, and heavy (correct)
  • Indicated by 100 mg/dL
  • Primarily caused by intravascular hemolysis

    • What type of proteinuria is associated with true renal disease?

  • Tubular Proteinuria
  • Postrenal Proteinuria
  • Prerenal Proteinuria
  • Renal Proteinuria (correct)

    • Which condition leads to Orthostatic (Postural) Proteinuria?

  • Severe viral infections
  • Toxic agents/heavy metals
  • Strenuous exercise (correct)
  • Diabetic nephropathy

    • What is the principle behind protein detection in urine?

    <p>Protein error of indicator</p> Signup and view all the answers

    In which type of proteinuria is increased albumin an important feature?

    <p>Tubular Proteinuria</p> Signup and view all the answers

    What are proteins added in the urine in postrenal proteinuria mostly composed of?

    <p>Prostatic fluid/spermatozoa</p> Signup and view all the answers

    What is the typical pH range for a first morning urine specimen from a healthy individual?

    <p>5.0 to 6.0</p> Signup and view all the answers

    Which condition can affect the pH of urine?

    <p>All of the above</p> Signup and view all the answers

    What is the principle behind the pH test for urine?

    <p>Double indicator system</p> Signup and view all the answers

    What is the typical color range observed in the urine specific gravity test?

    <p>Blue-green-yellow</p> Signup and view all the answers

    What is the principle behind the specific gravity test for urine?

    <p>pKa change of polyelectrolytes</p> Signup and view all the answers

    What is the major serum protein typically found in normal urine?

    <p>Albumin</p> Signup and view all the answers

    What should be done with refrigerated specimens before reagent strip testing?

    <p>Allow them to warm to room temperature.</p> Signup and view all the answers

    What should be done to ensure accurate results when using reagent strips?

    <p>Compare the reaction colors with a manufacturer's chart.</p> Signup and view all the answers

    How should excess urine be removed before comparing reaction colors with the manufacturer's chart?

    <p>Withdraw the strip against the rim of the container and blot the edge of the strip.</p> Signup and view all the answers

    How can interference with reagent strip testing be minimized?

    <p>Be alert for the presence of interfering substances.</p> Signup and view all the answers

    What is a recommended quality control practice for reagent strips?

    <p>Resolve control results that are out of range by further testing.</p> Signup and view all the answers

    Why is it important to relate chemical findings to physical and microscopic urinalysis results?

    <p>To understand the principles and significance of the test.</p> Signup and view all the answers

    What is the purpose of testing precipitation on centrifuged specimens?

    <p>To remove extraneous contamination</p> Signup and view all the answers

    Which substances result in a false positive in precipitation tests?

    <p>Mucin</p> Signup and view all the answers

    What color represents positive results for albumin in the MICRAL TEST?

    <p>Red</p> Signup and view all the answers

    How long is the IMMUNODIP strip placed in the urine specimen?

    <p>3 minutes</p> Signup and view all the answers

    What does a darker bottom band represent in the IMMUNODIP test?

    <p>Negative result</p> Signup and view all the answers

    What do equal band colors in IMMUNODIP suggest?

    <p>$1.2$ to $1.8$ mg/dL of albumin</p> Signup and view all the answers

    What does the Watson-Schwartz Differentiation Test help differentiate?

    <p>Urobilinogen, porphobilinogen, and Ehrlich-reactive compound</p> Signup and view all the answers

    What color represents a positive result in the Ehrlich's Tube Test for urobilinogen?

    <p>Cherry red</p> Signup and view all the answers

    In the Chloroform Extraction of substances like urobilinogen, what color does urine turn in the top layer of butanol extraction?

    <p>Colorless</p> Signup and view all the answers

    What is the significance of a red color in the Watson-Schwartz Differentiation Test?

    <p>Indicates the presence of urobilinogen</p> Signup and view all the answers

    What reaction principle is used in the UROBILINOGEN test according to the text?

    <p>Ehrlich reaction</p> Signup and view all the answers

    What medical condition can be associated with hyperglycemia according to the text?

    <p>Diabetes mellitus</p> Signup and view all the answers

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