Hematology Quiz: Granulocytes, MCHC, and Blood Collection Tubes
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Questions and Answers

What is the rarest type of granulocyte?

  • Neutrophils
  • Basophils (Correct) (correct)
  • Eosinophils
  • Monocytes

    • Which condition can cause abnormal MCHC values due to artifacts?

  • Technical Errors
  • Icteric Samples
  • Lipemia
  • Hemolysis (Correct) (correct)

    • Which type of blood collection tube should be used for PT and PTT assays?

  • Purple-topped tube
  • Green-topped tube
  • Blue-topped (3.2% sodium-citrate) tube (Correct) (correct)
  • Red-topped tube

    • Which site is NOT typically biopsied for superficial locations?

    <p>Internal (Correct)</p> Signup and view all the answers

    To diagnose DIC, which laboratory abnormality must NOT be present?

    <p>Increased Platelet count (Correct)</p> Signup and view all the answers

    In vaginal cytology, which type of cell is predominant during Estrus?

    <p>Parabasal cells (epithelial cells with a huge nucleus) (Correct)</p> Signup and view all the answers

    Which of the following is a common cause of variations in lymphocyte numbers?

    <p>Allergies (Correct)</p> Signup and view all the answers

    What is the most common clinical sign associated with thrombocytopenia?

    <p>Subcutaneous ecchymoses - Bruise (Correct)</p> Signup and view all the answers

    In vaginal cytology, which type of cell is predominant during Estrus?

    <p>Parabasal cells (epithelial cells with a huge nucleus) (Correct)</p> Signup and view all the answers

    What happens to erythrocytes as they mature?

    <p>Change in Cell Shape (Correct answer: All of the above)</p> Signup and view all the answers

    What is the role of Vitamin K antagonists in the body?

    <p>Inhibit the synthesis of clotting factors (Correct)</p> Signup and view all the answers

    What does a refractive index measure?

    <p>The ratio of the speed of light in a medium to the speed in a vacuum (Correct)</p> Signup and view all the answers

    What are mature RBC's of mammals like?

    <p><strong>Small, biconcave</strong> (Correct)</p> Signup and view all the answers

    What color does an alive spermatozoa appear when using the eosin/nigrosin stain?

    <p><strong>White - Alive sperm</strong> (Correct)</p> Signup and view all the answers

    Which of the following is the predominant type of cell during Estrus in vaginal cytology?

    <p>Intermediate cells</p> Signup and view all the answers

    When using the eosin/nigrosin stain, how does an alive spermatozoa appear?

    <p>Pink - dead sperm</p> Signup and view all the answers

    Which type of blood collection tube should be used for PT and PTT assays?

    <p>Green-topped tube</p> Signup and view all the answers

    For superficial biopsies, which site is typically NOT biopsied?

    <p>Subcutaneous tissue</p> Signup and view all the answers

    Which of the following is the rarest type of granulocyte?

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

    What could cause abnormal MCHC values due to artifacts?

    <p>Technical Errors</p> Signup and view all the answers

    Which enzyme indicates cholesterol disease?

    <p>ALP - alkaline phosphate</p> Signup and view all the answers

    What type of cell is predominant during Estrus in vaginal cytology?

    <p>Squamous cells</p> Signup and view all the answers

    What happens to erythrocytes as they mature?

    <p>Loss of Nucleus and Organelles</p> Signup and view all the answers

    When using the eosin/nigrosin stain, how does an alive spermatozoa appear?

    <p>White - Alive sperm</p> Signup and view all the answers

    What does a refractive index measure?

    <p>The ratio of the speed of light in a medium to the speed in a vacuum</p> Signup and view all the answers

    Lymphocytes are the smallest white blood cells. Their numbers can vary due to physiological causes or diseases. Which of the following conditions is NOT a common cause of variations in lymphocyte numbers?

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

    Urine should be evaluated within 30 minutes of collection. If this is not possible, how should the sample be stored until analysis?

    <p>Refrigerated for up to 24 hours</p> Signup and view all the answers

    TRUE or FALSE. Coagulation abnormalities can lead to extensive hemorrhaging.

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

    Study Notes

    Blood Cells and Coagulation

    • The rarest type of granulocyte is the basophil.
    • Abnormal MCHC values can be caused by artifacts due to hemolysis, lipemia, or hyperbilirubinemia.
    • For PT and PTT assays, sodium citrate tubes should be used for blood collection.
    • The buccal mucosa is not typically biopsied for superficial locations.

    Coagulation and Hemostasis

    • To diagnose DIC, thrombocytopenia must not be present.
    • Vitamin K antagonists play a role in inhibiting blood coagulation in the body.
    • A refractive index measures the degree of bending of light as it passes through a medium.

    Cytology and Cellular Development

    • During Estrus, superficial cells are predominant in vaginal cytology.
    • As erythrocytes mature, they lose their nucleus and organelles.
    • Mature RBCs of mammals are biconcave discs.

    Sperm Analysis

    • Alive spermatozoa appear pinkish-red when using the eosin/nigrosin stain.

    Lymphocytes and Cholesterol

    • Physiological causes or diseases can cause variations in lymphocyte numbers.
    • Lymphocytes are the smallest white blood cells.
    • The enzyme that indicates cholesterol disease is cholesterol esterase.

    Urine Analysis

    • Urine samples should be evaluated within 30 minutes of collection; if impossible, store at 4°C until analysis.

    Coagulation Abnormalities

    • Coagulation abnormalities can lead to extensive hemorrhaging.

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    Description

    Test your knowledge of hematology with this multiple-choice quiz. Questions cover topics such as the rarest type of granulocyte, abnormal MCHC values, and blood collection tubes for specific assays.

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