Urine Color Causes Quiz
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Questions and Answers

Which urine color is associated with concentrated specimens and is generally normal after exercise?

  • Yellow-Green
  • Port wine
  • Brown/Black
  • Dark yellow (correct)
  • What urine color indicates the presence of bilirubin, characterized by yellow foam when shaken?

  • Pink
  • Yellow-Green (correct)
  • Black
  • Red
  • Which color of urine would fully correspond to a positive test for blood with visible RBCs under a microscope?

  • Dark yellow
  • Pink (correct)
  • Brown/Black
  • Port wine
  • What is the likely color of urine resulting from myoglobin, characterized by clear urine and positive blood results?

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

    Which cause is associated with alkaline urine after standing and produces a brown/black color?

    <p>Homogentisic acid</p> Signup and view all the answers

    Study Notes

    Urine Color and Associated Causes

    • Dark yellow urine can be caused by dehydration or concentrated specimen, which is normal after exercise or in the first morning specimen.
    • Yellow-green urine can be caused by bilirubin, which is indicated by a positive test for bilirubin.
    • Yellow-green urine can also be caused by biliverdin.
    • Port-wine colored urine can indicate the presence of porphyrins, but will have a negative blood test.
    • Brown or black urine can indicate the presence of homogentisic acid, a condition known as alkaptonuria. This urine will become alkaline after standing.
    • Black urine could indicate the presence of melanin.
    • Pink urine can be caused by red blood cells, resulting in cloudy urine and a positive test for blood. Red blood cells will be visible under microscopic examination.
    • Red urine can be caused by hemoglobin or myoglobin. Both will result in clear urine and a positive test for blood. Hemoglobin is associated with intravascular hemolysis, while myoglobin is associated with muscle damage.
    • Red urine can also be caused by the consumption of beets.

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    Description

    Test your knowledge on the various colors of urine and their associated causes. This quiz covers conditions that lead to specific urine colors, including dark yellow, yellow-green, and port-wine colors. Understand the medical implications related to different urine appearances.

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