Human Blood Components Quiz
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Questions and Answers

What are erythrocytes commonly known as?

  • Red blood cells (correct)
  • Platelets
  • White blood cells
  • Plasma
  • What do leukocytes refer to in the human body?

  • White blood cells (correct)
  • Plasma proteins
  • Blood platelets
  • Red blood cells
  • Which component of blood is primarily responsible for clotting?

  • Plasma
  • Platelets (correct)
  • Leukocytes
  • Erythrocytes
  • Approximately how much blood does an adult human body contain?

    <p>1 gallon</p> Signup and view all the answers

    How long do mature red blood cells live in the bloodstream?

    <p>120 days</p> Signup and view all the answers

    What is the lifespan of mature red blood cells in the bloodstream?

    <p>120 days</p> Signup and view all the answers

    What is the main iron-containing pigment found in red blood cells?

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

    What age group do phlebotomists typically collect blood from in the neonatology department?

    <p>Hours to a few days old</p> Signup and view all the answers

    What type of patients do phlebotomists typically work with in the neonatology department?

    <p>Hours to a few days old</p> Signup and view all the answers

    What term is used to describe white blood cells?

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

    Which department should a primary consultant on the timing for collecting blood for a diagnostic test be from?

    <p>Clinical hematology</p> Signup and view all the answers

    In what part of the body do blood cells begin their formation?

    <p>Bone marrow</p> Signup and view all the answers

    What is the primary purpose of flowcharts in quality improvement methodologies?

    <p>Breaking out components into a diagram to understand a process</p> Signup and view all the answers

    What does quality improvement for specimen collection NOT frequently involve?

    <p>Frequency of hematomas</p> Signup and view all the answers

    What is the purpose of Pareto charts in quality improvement methodologies?

    <p>Making bar charts that show frequency of problems</p> Signup and view all the answers

    A person with low hemoglobin or a decreased number of red blood cells is described as:

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

    What are the components of blood that remain after it clots called?

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

    What is the process of determining if a person will reject a blood transfusion?

    <p>Type and cross-match</p> Signup and view all the answers

    What percentage of the total blood volume do the formed elements of the blood make up?

    <p>45%</p> Signup and view all the answers

    Which device is essential for separating serum from whole blood quickly?

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

    What is indicated by the supine position in a medical context?

    <p>Lying face-up on their back</p> Signup and view all the answers

    What is the typical blood pH range considered normal?

    <p>7.35 to 7.45</p> Signup and view all the answers

    Which anticoagulant is commonly used during blood donations?

    <p>Sodium citrate</p> Signup and view all the answers

    What is the purpose of wearing clean gloves during a venipuncture?

    <p>It is a reassuring, safety-conscious gesture for both the patient and the worker</p> Signup and view all the answers

    Which type of tube is required for measuring blood copper levels?

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

    What should be done to avoid micro-clotting in a blood collection tube?

    <p>Gently invert the tube a minimum of 8 times</p> Signup and view all the answers

    What is the preferred alternative site for venipuncture if arm veins cannot be used?

    <p>Anterior surface of the hand or wrist</p> Signup and view all the answers

    What is the most reliable labeling method to avoid transcription errors?

    <p>Computerized labels using bar codes</p> Signup and view all the answers

    Which assay does not require a chilled specimen?

    <p>Blood gasses</p> Signup and view all the answers

    What is the primary component of interstitial fluid?

    <p>Tissue fluid</p> Signup and view all the answers

    Which condition is commonly treated with therapeutic phlebotomy?

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

    In which patients are fragile veins most commonly found?

    <p>Geriatric patients</p> Signup and view all the answers

    What should be done with the first drop of blood after a finger stick?

    <p>Wipe it off</p> Signup and view all the answers

    What does the term 'occluded' refer to when discussing veins?

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

    Skin puncture blood is primarily derived from which source?

    <p>Blood from capillaries</p> Signup and view all the answers

    Which of the following actions is the last step in any phlebotomy procedure?

    <p>Checking if bleeding has stopped</p> Signup and view all the answers

    How long should alcohol be allowed to dry before performing venipuncture?

    <p>30-60 seconds</p> Signup and view all the answers

    What is the recommended angle for spreading a blood smear?

    <p>45 degrees</p> Signup and view all the answers

    For which test are skin puncture samples typically not used?

    <p>Blood gasses</p> Signup and view all the answers

    What is the most effective method for decontaminating visibly dirty hands after blood collection?

    <p>Washing with soap and water</p> Signup and view all the answers

    When should blood be collected to accurately determine medication levels?

    <p>Just prior to the next dose</p> Signup and view all the answers

    What does glycolytic action refer to?

    <p>Breakdown of glucose</p> Signup and view all the answers

    Which of the following is NOT a use for bar codes in phlebotomy applications?

    <p>Patient arm preference</p> Signup and view all the answers

    In which tube is lithium heparin typically found?

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

    What is the preferred anticoagulant for STAT whole blood collections in clinical chemistry?

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

    Which statement is true regarding the collection of alkaline phosphatase?

    <p>It should NEVER be collected in a gray-topped tube</p> Signup and view all the answers

    Skin puncture techniques are most suitable when:

    <p>Small amounts of blood are required, such as in neonates.</p> Signup and view all the answers

    One of the key functions of blood is to transport:

    <p>Waste products.</p> Signup and view all the answers

    Therapeutic phlebotomy is primarily used to treat:

    <p>Conditions that lead to an excess of red blood cells.</p> Signup and view all the answers

    The term 'occluded' when referring to veins indicates that they are:

    <p>Blocked or obstructed.</p> Signup and view all the answers

    Which finger typically has a detectable pulse?

    <p>Middle finger.</p> Signup and view all the answers

    The final step in any phlebotomy procedure, including skin puncture, is to:

    <p>Ensure the bleeding has stopped and thank the patient.</p> Signup and view all the answers

    What commonly causes blood pooling in veins?

    <p>Applying a tourniquet.</p> Signup and view all the answers

    If a phlebotomist's hands are visibly dirty, the most effective method of cleaning them is:

    <p>Washing with soap and water.</p> Signup and view all the answers

    What is the best angle for inserting the needle into the skin during venipuncture?

    <p>60-75 degrees</p> Signup and view all the answers

    What should the phlebotomist do after the needle is inserted and blood begins to flow?

    <p>Adjust the hub of the needle</p> Signup and view all the answers

    What does the term 'butterfly' refer to in venipuncture terminology?

    <p>Winged infusion set</p> Signup and view all the answers

    Which direction should the bevel be oriented when inserting the needle?

    <p>Bevel side up</p> Signup and view all the answers

    Where is the antecubital area located?

    <p>Slightly below the elbow</p> Signup and view all the answers

    What is the main reason for practicing hand-hygiene techniques?

    <p>Reduces the number of outbreaks of infections</p> Signup and view all the answers

    Why should microbiological culture specimens be transported to the lab quickly?

    <p>To improve the likelihood of detecting pathogens</p> Signup and view all the answers

    Quality control records do NOT include which of the following?

    <p>Expiration dates and stability information</p> Signup and view all the answers

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