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- Maternal and Child Health Nurse Test Part 2
- Maternal and Child Health Nurse Test Part 1
- Dehydration: Types, Causes and Treatment
- Behavior Modification
- Thalassemias
Maternal and Child Health Nurse Test Part 2 Posted: 14 Nov 2010 11:08 PM PST December 2010 Nursing Board Exam Review Questions on Maternal and Child Health Nursing. Mark the letter of your choice then click on the next button. Your score will be posted as soon as the you are done with the quiz. We will be posting more of this soon. If you want a simulated Nursing Board Exam, get a copy of our Nursing Board Exam Reviewer v1.0 and v2 now. Related posts: |
Maternal and Child Health Nurse Test Part 1 Posted: 14 Nov 2010 11:03 PM PST December 2010 Nursing Board Exam Review Questions on Maternal and Child Health Nursing. Mark the letter of your choice then click on the next button. Your score will be posted as soon as the you are done with the quiz. We will be posting more of this soon. If you want a simulated Nursing Board Exam, get a copy of our Nursing Board Exam Reviewer v1.0 and v2 now. Please go to Maternal and Child Health Nurse Test Part 1 to view the quizRelated posts: |
Dehydration: Types, Causes and Treatment Posted: 14 Nov 2010 06:57 PM PST Dehydration is defined as an excessive loss of body fluid. Dehydration occurs when more fluids are lost than taken in and the body doesn’t have enough water and other fluids to carry out its normal functions.
Three types of dehydration based on severity:
In humans, the most commonly seen type of dehydration is isotonic (isonatraemic) dehydration, which equ ates with hypovolemia, but the distinction of isotonic from hypotonic or hypertonic dehydration may be important when treating people who become dehydrated. Causes:
People at Risk:
Symptoms:
Severe dehydration, a medical emergency, can cause:
Diagnostic tests:
Treatment: The only effective treatment for dehydration is to replace lost fluids and lost electrolytes. The best approach to dehydration treatment depends on your age, the severity of your dehydration and its cause.
Nursing Considerations:
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Posted: 14 Nov 2010 06:06 PM PST Behavior Modification Definition Behavior modification is a method of strengthening desired behavior or response through a positive or negative reinforcement of adaptive behavior or the reduction of a maladaptive behavior through extinction, punishment or therapy. For example you are an employee. You worked extra hours just to finish your tasks, arrives at work on time and sometimes you skip lunch just to complete the assigned job. A hard worker – that's what you are! Now after a month of hard work your paycheck is delayed. Weeks and months passed and still the salary is not released. Would you perform the same effort towards your job now that you are still unpaid? You might still go to work with a change behavior or stop working. For working people, receiving a regular and on-time paycheck is a positive reinforcer that motivates the employees to do their job well. If this motivating factor is lacking, expect a less efficient job performance from the employees. Behaviorists believed that a behavior can be change through a system of rewards and punishments. Positive and Negative Reinforcement A positive reinforcement is provided by giving a person attention and positive feedback. For example, a child has successfully made it through the night without wetting the bed. The mother acknowledges the child's behavior in front of the family during breakfast period. A negative reinforcement on the other hand is done by removing a stimulus after a behavior occurred to prevent it from occurring again. For example, a student becomes anxious when he is seated at the back during classes. He or she may ask the professor to be seated in front to prevent such anxiety. Indication
Behavior Modification Techniques ABC approach A – Antecedents Antecedents are the events that occur before a particular behavior is demonstrated. "What comes directly before the behavior?" B – Behaviors The behavior developed as a result of the presence of antecedent. "What does the behavior look like?" C – Consequences These are the events that occur after the behavior. "What comes directly after the behavior?" After the ABC's are assessed, the data gathered is analyzed and identified as inappropriate and appropriate behavior. Inappropriate behaviors are observed, targeted and stopped while the appropriate ones are identified, developed, strengthened and maintained. Some Behavioral Theories and Theorists Theorists such as Ivan Pavlov and Burrhus Frederick Skinner focused on observable behaviors and factors that bring about behavioral changes. Classical Conditioning by Ivan Petrovich Pavlov Ivan Pavlov is a Russian psychologist, physiologist and physician widely known for providing the best example of classical conditioning through experimentation on dogs. Classical conditioning principle states that a behavior can be modified or changed through conditioning of the external stimuli or conditions. Operant conditioning by Burrhus Frederick Skinner B.F. Skinner is an American psychologist who developed the operant conditioning. Operant conditioning states that people learn their behaviors from their past experiences particularly those which as constantly reinforced. Related posts: |
Posted: 14 Nov 2010 06:06 PM PST Thalassemias Definition Thalassemia is a group of inherited disorders which is associated with hemoglobin defects. The disorder results in excessive destruction of red blood cells leading to anemia. Types of Thalassemia There are two main types of Thalassemia based on the chain of hemoglobin it affects. These are the following:
Forms of Thalassemia Both the alpha and beta thalassemia include the following forms:
Incidence Aplha thalassemias occur frequently among Southeast Asians, Middle East Asians, Chinese and Africans. Beta Thalassemias occur frequently to those of Mediterranean origin and lesser to Chinese, other Asians and African Americans. Review of Related Anatomy and Physiology Red blood cells or erythrocytes carry oxygen to the different parts of the body. Different from other cells, RBC's do not contain a nucleus (anucleated). These small cells are circular and flattened with depressed centers on both sides resembling to that of a doughnut when viewed under a microscope. Their size and shape provides a large surface area for carrying oxygen in relation to their volume. The normal RBC count is 4-6 million/mm3. RBC's has the life span of 120 days. Hemoglobin is a form of protein that contains iron which is responsible for transporting oxygen that is carried in blood. Adult hemoglobin contains a beta chain (HBB) while a fetus' hemoglobin has a gamma chain. Hemoglobin is comprised of four protein (amino acid) components. It has two beta-globin and two alpha-globin. The subunit beta-globin is located inside the RBCs. These amino acids carry an iron-bearing molecule called heme. Heme molecules, which are only found in mature RBC's, enables the erythrocytes to pick oxygen from the lungs and transport it throughout the body. Once oxygen attaches to hemoglobin it gives the blood its bright red pigment. The more hemoglobin molecules the RBC contain, a higher amount of oxygen will they be able to carry. If the hemoglobin is defective, the erythrocyte will also malfunction. A red blood cell is just a vessel; the one that performs the oxygen transportation is the hemoglobin. Normal hemoglobin is 13-18 grams/100 ml of blood in males and 12-16 grams in females. Pathophysiology Risk Factors
Causes
Thalassemias are inherited disorders of hemoglobin synthesis that result from a change in globin chain production. Beta-globin normally joins to alpha-globin component of hemoglobin. When beta-protein is lacking, alpha-globin accumulates and causes destructive membrane effects and vice versa. This leads to destruction of red blood cells. Not only that it causes membrane damage and cell destruction but it also suppresses the mitosis in stem cells, thus RBC production falls. The result of impaired hemoglobin synthesis is a microcytic, hypochromic anemia. Related posts: |
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