Microscope Handling and Components
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Questions and Answers

What is the purpose of the stage in a microscope?

  • To support and hold glass microscope slides with specimens for examination (correct)
  • To house the objective lenses
  • To control the intensity of light for visualization
  • To adjust the magnification of the specimen
  • How can the desired objective lens be selected in a microscope?

  • By rotating the turret on the revolving nosepiece (correct)
  • By adjusting the condenser lens
  • By changing the eyepiece lens
  • By moving the coarse adjustment knob
  • Which type of leukocyte is characterized by a large spherical nucleus and smooth cytoplasm?

  • Lymphocytes (correct)
  • Neutrophils
  • White blood cells
  • Polymorphonuclear leukocytes
  • What is the function of the iris diaphragm in a microscope?

    <p>To regulate light intensity onto the specimen</p> Signup and view all the answers

    Which part of the microscope is responsible for fine adjustment focusing?

    <p>Smaller knob near the coarse adjustment knob</p> Signup and view all the answers

    In a binocular microscope, how many eyepieces are typically present?

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

    What may the presence of red or brown urine indicate?

    <p>Hematuria or hemoglobinuria</p> Signup and view all the answers

    Which factor may result in cloudiness in urine?

    <p>Suspended materials like mucus or bacteria</p> Signup and view all the answers

    What does proteinuria in urine potentially indicate?

    <p>Urinary tract infection</p> Signup and view all the answers

    Which condition may result in glycosuria (glucose in urine)?

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

    What do elevated urobilinogen levels in urine suggest?

    <p>Liver or hemolytic disorders</p> Signup and view all the answers

    What does the presence of white blood cells in urine indicate?

    <p>Urinary tract infection</p> Signup and view all the answers

    If nitrite is detected in the urine, what is the likely implication?

    <p>Urinary tract infection</p> Signup and view all the answers

    What is a possible biological reason for a false negative result in the protein test?

    <p>Dilute urine sample</p> Signup and view all the answers

    In a patient with diabetes mellitus, what abnormality may be found in the urinalysis?

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

    What could lead to a false positive result in the blood test?

    <p>Menstrual blood interference</p> Signup and view all the answers

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