Thursday, September 6, 2012

Chapter 14 Objectives


14.1 Introduction
A. Know the characteristics of blood
B. Blood cells
     1. Where are they formed?
     2. Distinguish among the formed elements of blood.
C. What is the adult volume of blood?
14.2: Blood Cells
A. Where blood cells originate?
       B. Review Figure 14.4
     Name the characteristics of Red Blood Cells
            A. What is the Red Blood Cell Count?
       B. What does it reflect?
     Red Blood Cell Production and Its Control
A. Explain negative feedback mechanism
 Dietary Factors Affecting Red Blood Cell Production
      A. Know the importance of Vitamin B12, Iron and folic acid.
     Destruction of Red Blood Cells
            Review Table 14.3
     Types of White Blood Cells           
      A. Describe white blood cells.
 1. Name and describe the five types of white blood cells (and the two categories).Table 14.5.    
     White Blood Cell Counts
      A. What is the normal count of white blood cells?
       B. What is Leukopenia? What it indicates?
       C. What is Leukocytosis and what it indicates?
             Review 14.2 Clinical Application
     Blood Platelets
      A. Describe platelets.
        B. What’s the normal count of platelets?
       C. What is their function
14.3: Blood Plasma
      A. Define and describe blood plasma.
 Plasma Proteins
            A. Name the three main types of plasma proteins and their function.
     Gases and Nutrients
      A. What are the most important blood gases?
             B. Name plasma nutrients.
     Nonprotein Nitrogenous Substances
      A. Define nonprotein nitrogenous substances and give examples.
     Plasma Electrolytes
       A. Define plasma electrolytes and give examples.
14.4: Hemostasis
      A. Define hemostasis.
       B. What are some actions that limit or prevent blood loss? What triggers each mechanism? Differentiate between extrinsic and intrinsic mechanism.
          Fate of Blood Clots
A. What is the difference between a thrombus and embolus.
          Prevention of Coagulation
A. Explain the mechanism of action of prostacyclin, fibrin threads and heparin in inhibition of blood clots.
14.5: Blood Groups and Transfusions
     Antigens and Antibodies
      A. Terms to become familiar with:
1. Agglutination – clumping of red blood cells in response to a reaction between an antibody and an antigen
 2. Antigens – a chemical that stimulates cells to produce antibodies
 3. Antibodies – a protein that reacts against a specific antigen.
     ABO Blood Group
A.   ABO blood group is based on:
B.    Know the preferred and permissible blood types for transfusion and the importance of this.
     Rh Blood Group
      A. What does Rh positive and Rh negative means?
      B. Explain the problems associates with this factor in pregnant women. 

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