Hematology Report Essay Example for Free

Hematology Report Essay The term comes from a Greek word â€Å"glukus† which means sweet. It is an organic compound, a simple sugar (monosaccharide) with a chemical formula C6H12O6, which occurs widely in most tissues of plants and animals. A major source of energy in the body, glucose is the principal circulating sugar. It is also knows as D-glucose, D-glucopyranose, grape sugar, corn sugar, dextrose, and cerelose. Glucose, whether in free or combined form, is the most common of the sugars and the most abundant organic compound in nature. Grapes, figs, and other sweet fruits and honey had been found to have considerably high concentration content. It is also found, although in lesser concentrations, in animal body fluids such as in the blood and lymph. Urine of diabetic patients usually contains 3-5 %. Absorbed into the bloodstream through the small intestine, it is carried through the portal vein to the liver wherein it is stored as glycogen. The rest reenters to the circulatory system. Glycogen is also stored in the muscle tissue (See â€Å"Glucose†) †¢ Catalyst for: a major contributor in metabolism. †¢ Disorders/Diseases: 1. High Levels: diabetes mellitus ? It is characterized by high levels of blood sugar (glucose), caused from defects in insulin secretion or action, or even both. In normal conditions, blood glucose levels are highly controlled by insulin, a hormone produced by the pancreas. Insulin helps lower the glucose level in the blood. In diabetic patients, the absence or insufficient production of insulin causes hyperglycemia. Although diabetes can be controlled, it is a chronic medical condition, which lasts a lifetime (See â€Å"What is diabetes? †) 2. Low Levels: hypoglycemia ? This disorder occurs when glucose levels falls too low resulting in the malfunction of cells. Symptoms develop such as cool skin, nervousness, headache, confusion, convulsion or even coma. Control of its level and metabolism is greatly important. 2. ) Urea Nitrogen (BUN) †¢ Definition: Urea is formed in the liver. It is a nitrogen-containing substance, which is normally cleared into the urine from the blood by the kidney. This was the first organic chemical compound that was synthesized. Friedrich Wohler, a German chemist, who accidentally made urea while in the process of attempting to make ammonium cyanate from silver cyanide and ammonium chloride (See â€Å"Definition of Urea†). It is a small organic molecule composed of carbon, nitrogen, oxygen and hydrogen and is formed from ammonia in the kidney and liver (See â€Å"What is Urea†). †¢ BUN: stands for Blood Urea Nitrogen This is a test that is used to measure the levels of urea in the blood. When diseases occur in the kidney, which comprises its function will frequently lead to increased level in the blood. The BUN level in the blood can also rise among patients who are dehydrated. Urea nitrogen is a waste product of protein metabolism in the blood. This is a test that measures how much urea nitrogen remains in the blood that can be used as a test of renal function. Nevertheless, there are many factors aside from renal disease that can cause BUN alterations, including protein breakdown, hydration status and liver failure. Reference values of BUN: Adult: 7-20 mg/100 ml (men may have slightly higher values than women) Newborn: values slightly lower than adult ranges Elderly: value slightly increase due to lack of renal concentration Pregnancy: values decrease about 25% *Values differ slightly from laboratory to laboratory for all tests †¢ Catalyst for: the breakdown of protein during tissue metabolism †¢ Disorders/Diseases: Diseases or malfunction concerning the kidney often lead to increased blood levels of urea. 1. High Levels: azotemia ? Possible causes: o Dehydration o Impaired renal function o Stress o Shock o Congestive heart failure as a result of poor renal perfusion o Excessive protein intake o Hemorrhage into the gastrointestinal tract 2. Low Levels: A low BUN may have little significance but can cause liver problems. A decreased BUN may be caused by over hydration. A person with â€Å"syndrome of inappropriate anti-diuretic secretion (SIADH), an anti-diuretic hormone responsible for stimulating the kidney to conserve water causes high level of water retention in the bloodstream rather than excreted into the urine. SIADH can raise the BUN level, while important substances decrease because of the significant increase of fluid in the bloodstream. A decrease BUN level may be seen in: malnutrition, liver failure, over hydration, impaired nutrient absorption, anabolic steroid use (See â€Å"Blood Urea Nitrogen BUN†). Urea itself is non-toxic. 3). Creatinine †¢ Definition: A creatine anhydride with chemical formula of C4H7N3O, is formed by the metabolism of creatine. Creatine is found in muscle tissue and blood; it is excreted as a metabolic waste in the urine (See â€Å"Creatinine†). A small amount is actively secreted and mainly filtered by the kidney. There is tubular reabsorption of creatinine but compensated by almost the same degree of tubular secretion. Creatinine is a chemical waste molecule, generated from muscle metabolism. About 2% of the body’s creatine is converted to creatinine every day. It is transported through the bloodstream to the kidneys. It is produced at a steady rate. Diet or normal physical activities have little effect on creatinine level. A malfunction of the kidney can decrease its level in the urine while raising its level in the blood (See â€Å"Creatinine and Creatinine Clearance†). †¢ Catalyst for: despite of being a waste, creatinine is vital for diagnostic function It is a reliable indicator of kidney function. †¢ Disorder/Diseases: 1. High Levels: This indicates a possible malfunction or failure of the kidneys. As the kidneys become impaired, creatinine level will rise. A high level suggests the following conditions of the kidney: -damage or swelling of the blood vessels in the kidneys known as glomerulonephritis. Prostate disease, kidney stone or urinary tract obstruction Reduced blood flow to the kidney 2. Low Levels: It is a rare occurrence that low level of creatinine would appear, and are not usually a cause for concern. Low levels of creatinine can be seen with conditions that results in decreased muscle mass (See â€Å"Creatinine: The Test†). Low creatinine is seen in some severe liver diseases as it is also seen in debilitation (See â€Å"Low Protein Diet Information for People with Kidney Diseases†) Normal level for: Adult males: approximately 0. 6 to 1. 2 milligrams (mg) per deciliter (dl) Adult females: 0. 5 to 1. 1 milligrams per deciliter Elderly: may have less creatinine in their blood than the norm Infants: 0. 2 or more depending on their muscle development Person w/ one kidney: 1. 8 or 1. 9 Creatinine levels that reach 2. 0 or more in babies and 10. 0 or more in adults may need to use a dialysis machine in order to remove wastes from the blood (See â€Å"Definition of Creatinine†). References: 1. â€Å"Glucose†. http://www. answers. com/topic/glucose 2. â€Å"What is diabetes? †. http://www. medicinenet. com/diabetes_mellitus/article. htm 3. â€Å"Definition of Urea†. http://www. medterms. com/script/main/art. asp? articlekey=5905 4. â€Å"What is Urea†. http://cahpwww. vet. upenn. edu/mun/mun_info. html 5. â€Å"Blood Urea Nitrogen (BUN). http://www. rnceus. com/renal/renalbun. html 6. â€Å"Creatinine†. American Heritage dictionaries. http://www. answers. com/topic/creatinine 7. â€Å"Creatinine and Creatinine Clearance†. http://www. webmd. com/hw/lab_tests/hw4322. asp 8. â€Å"Creatinine: The Test†. http://www. labtestsonline. org/understanding/analytes/creatinine/test. html 9. â€Å"Low Protein Diet Information for People with Kidney Diseases†. http://www. geocities. com/HotSprings/Spa/3265/lowp. html 10. See â€Å"Definition of Creatinine†. http://www. medterms. com/script/main/art. asp? articlekey=12550 4. ) BUN/Creatinin ratio: †¢ Definition: BUN-to-creatinine ratio= 10:1-201 (over 12 months of age) =Up to 30:1 (infants less than 12 months of age) (See â€Å"Blood Urea Nitrogen†) http://www. bchealthguide. org/kbase/topic/medtest/aa36271/results. htm †¢ Disorder/Diseases: High Level: High ratios occur with acute kidney failure, which could be caused by conditions such as shock or severe dehydration Low Level: Can be associated with a diet low in protein, and severe muscle injury called rhabdomyolysis, pregnancy, cirrhosis, inadequate antidiuretic hormone secretion. (See â€Å"BUN/Creatinine ratio) http://www. thedoctorslounge. net/nephrology/forums/backup/topic-6481. html 5. ) Sodium: †¢ Definition: Sodium is deposited largely in the blood and in the fluid in the space surrounding the cells in our body. It is important in maintaining a normal fluid balance by all cells. †¢ Catalyst for: plays a key role in normal nerve and muscle function. †¢ Disorder/Disease: Healthy kidneys must have a consistent amount of sodium in the body. Excess amount is excreted in the urine. When the amount of sodium intake and loss are not in balance, the amount of water in the blood is affected.

Break Stalin :: essays research papers

Break Stalin Destalinization: A Wise Political Strategy Although many of his ideas did not bring the expected results, Nikita Khrushchev policies of de-Stalinization were politically wise. He went against many of Stalin’s tyrannical policies and gave the people a much greater sense of freedom. In the process known as “de-Stalinization';, legal procedures were restored, some greater degree of meaningful public controversy was permitted, forced labor camps were closed and the secret police tactics of Stalin’s era were erased. Stalin’s method of personal rule was replaced by group rule and more orderly processes of government, the terror apparatus was largely dismantled, the economy was notably modernized and foreign policy was conducted with much greater diplomatic initiative and flexibility. There was free political discussion, a standard forty-hour work week where people were free to change jobs, better government planning on production, and eased travel re strictions over the “Iron Curtain';. In the process of de-Stalinization the cities that were once named in honor of Stalin were given new names or returned to their old names1. The statues and pictures of Stalin were destroyed and letters were sent to families of those who were killed in battle, which criticized Stalin’s weak leadership during the time of the war. Stalin’s grave was vandalized during this process, and Khrushchev gained approval from the West. These policies were used to erase the past and ease the minds of those who suffered under the dictator2. Khrushchev worked to denounce his former leaders doings and clean up the image of the nation on a worldwide scale. Khrushchev worked hard to be agreeable with the majority of people he ruled. He sought to contrast his own present policies with the extremities of Stalinism, and therefore restore public confidence in the Soviet system.3 Perhaps the most notable example of de-Stalinization was wher e Khrushchev denounced Stalin and criticized the dictator along with those who agreed with his views. These views which murdered so many Russian Citizens. At the 20th All-Union Party Congress (1956) where Khrushchev delivered a “secret'; report on “The Personality Cult and Its Consequences,'; bitterly denouncing the rule, policies, and personality of Stalin.4 The speech was supposedly kept a secret so that the Capitalist media would not receive word of it and gain an edge over the Communists if they knew of the problems occurring within the party. Khrushchev accused Stalin of being responsible for mass murders and deportations, the German invasion during World War II (1939-1945), and the USSR’s

Economic midterm

SST. Charles Hospital, located in an upper-income neighborhood of a large city, recently received a restored mansion as a gift from an appreciative patient. The board of directors decided to remodel the mansion and use It as recuperative quarters for patients willing to pay a premium for luxurious accommodations. The cost to the hospital of using the mansion includes Selected Answer: d. Both b and c Question 2 O out of 0. 5 points Which of the following statements Is false? Selected Answer: c. D If economic profit is positive, accounting profit must also be positive. Question 3Economic profit is the best measure of a firm's performance because the opportunity cost of using ALL resources Is subtracted from total revenue. Question 4 Mallory decides to spend three hours working overtime rather than watching a video with her friends. She earns $8 an hour. Her opportunity cost of working is the enjoyment she would have received had she watched the video. Question 5 Russell spends an hour studying Instead of playing tennis. The opportunity cost to him of studying is Selected Answer: c. The enjoyment and exercise he would have received had he played tennis. OF 22 Economic profit Selected Answer: a. Al never exceed accounting profit. Question 7 Bee is opening her own court-reporting business. She financed the business by withdrawing money from her personal savings account. When she closed the account, the bank representative mentioned that she would have earned $300 in interest next year. If Bee hadn't opened her own business, she would have earned a salary of $25,000. In her first year, Bees revenues were $30,000. Which of the following statements is correct? Selected Answer: c. B Bees total explicit costs are $25,300. Question 8 Suppose that the firm's only variable input is labor.When 50 workers are used, the average product of labor is 50 and the marginal product of labor is 75. The wage rate is $80 and the total cost of the fixed input is $500. What is average var iable cost? Selected Answer: b. $1. 60 Question 9 Suppose that you run a house-painting company and currently have 2 workers painting a total of 4 houses per month. If you hire a third worker, 6 houses can be painted per month. If you hire a fourth worker, 9 houses can be painted, and a fifth and sixth worker will increase the number of houses painted to 13 and 15, respectively. Diminishing returns Selected Answer: set in when the sixth worker is hired.Question 10 When marginal cost is rising, average variable cost Selected Answer: a. D must be rising. Lorry's Lunchmeats is a small street vendor business. If Larry makes 15 pretzels in his first hour of business and incurs a total cost of $16. 50, his average total cost per pretzel is $1. 10. Question 12 At all levels of production higher than the point where the marginal cost curve crosses the average variable cost curve, average variable cost rises. Question 13 Teacher's Helper is a small company that has a subcontract to produce i nstructional materials for disabled children in public school districts.Then the Selected Answer: b. A Question 18 Consumer surplus all of the above Question 19 Suppose a frost destroys much of the Florida orange corp.. At the same time, suppose consumer tastes shift toward orange Juice. What would we expect to happen to the equilibrium price and quantity in the market for orange Juice? Price will increase, quantity is indeterminate (may increase or decrease). Question 20 You lose your Job and, as a result, you buy fewer romance novels. This shows that you consider romance novels to be a(n) Selected Answer: c. A luxury good.Question 21 Consumer surplus is the amount a buyer is willing to pay for a good minus the amount the buyer actually pays for it. Question 22 Which cell in the following table represents an increase in equilibrium quantity and an indeterminate change in equilibrium price? An Increase in Supply An Increase in Demand A A Decrease in Supply Selected Answer: b. D c Qu estion 23 An example off price floor is Selected Answer: a. B rent control. Question 24 Which of these statements best represents the law of demand? When the price of a good decreases, buyers purchase more of the good.Question 25 In the housing market, rent control causes quantity supplied to fall and quantity demanded to rise. Question 26 If the market price of eggs rises at the same time as the market quantity of eggs researches decreases, this could have been caused by a decrease in supply with no change in demand. Question 27 Question 28 Use the following demand and supply functions to answer the following question: Demand: Q = 50 – UP supply SQ = 20 + UP If the price is $10, there is a surplus of 30 units. Question 29 Which of the following will cause an increase in consumer surplus? Technological improvement in the production of the good Question 30 Suppose you are in charge of setting prices at a local sandwich shop. The business needs to increase its total revenue and your Job is on the line. If the demand for sandwiches is elastic, you Selected Answer: d. C should not change the price of sandwiches. Question 31 Merrill's income elasticity of demand for football tickets is 1. 50. All else equal, this means that if her income increases by 20 percent, she will buy 30 percent more football tickets.Question 32 Which of the following could be the cross-price elasticity of demand for two goods that are complements? Question 33 Selected Answer: d. B demand is inelastic and supply is elastic. Question 34 When we move upward and to the left along a linear, downward-sloping demand curve, price elasticity of demand Selected Answer: b. C always becomes smaller. Question 35 When the price of bubble gum is $0. 50, the quantity demanded is 400 packs per day. When the price falls to $0. 40, the quantity demanded increases to 600.Given this information and using the midpoint method, we know that the demand for bubble gum is elastic. Question 36 At age 40, Joe is considering quitting his Job and going back for a college degree. He needs two more years full-time. Tuition is $10,000 per year. He earns $30,000 per year. A college degree would raise his annual income by $10,000 per year. He will retire at age 70. From an investment standpoint, Joe will go back full-time if Selected Answer: a 10,000 x > 40,000 x Question 37 Martha and Sarah have the same preferences and incomes.Just as Martha arrived at the theater to see a play, she discovered that she had lost the $10 ticket she had purchased earlier. Sarah Just arrived at the theater planning to buy a ticket to see the same play when she discovered that she had lost a $10 bill from her wallet. If both Martha and Sarah are rational and both still have enough money to pay for a ticket, which one of the following statements is correct? Martha and Sarah will take the same action (either to pay for another ticket or not to ay) because the ticket lost or $10 lost is a sunk cost and it should not fa ctor into their decisions.Because bagels and cream cheese are often eaten together, they are complements. Suppose we observe that the equilibrium price of cream cheese has risen but the equilibrium quantity of bagels has fallen. Which of the following explanations is consistent with these changes in the bagels and cream cheese markets? Price of milk increased. Question 39 complements. Suppose we observe that both the equilibrium price of cream cheese and the equilibrium quantity of bagels have increased. Which of the following Price of flour decreased.

Common Examples of Uncountable Sets

Not all infinite sets are the same. One way to distinguish between these sets is by asking if the set is countably infinite or not. In this way, we say that infinite sets are either countable or uncountable. We will consider several examples of infinite sets and determine which of these are uncountable.​ Countably Infinite We begin by ruling out several examples of infinite sets. Many of the infinite sets that we would immediately think of are found to be countably infinite. This means that they can be put into a one-to-one correspondence with the natural numbers. The natural numbers, integers, and rational numbers are all countably infinite. Any union or intersection of countably infinite sets is also countable. The Cartesian product of any number of countable sets is countable. Any subset of a countable set is also countable. Uncountable The most common way that uncountable sets are introduced is in considering the interval (0, 1) of real numbers. From this fact, and the one-to-one function f( x ) bx a. it is a straightforward corollary to show that any interval (a, b) of real numbers is uncountably infinite. The entire set of real numbers is also uncountable. One way to show this is to use the one-to-one tangent function f ( x ) tan x. The domain of this function is the interval (-π/2, π/2), an uncountable set, and the range is the set of all real numbers. Other Uncountable Sets The operations of basic set theory can be used to produce more examples of uncountably infinite sets: If A is a subset of B and A is uncountable, then so is B. This provides a more straightforward proof that the entire set of real numbers is uncountable.If A is uncountable and B is any set, then the union A U B is also uncountable.If A is uncountable and B is any set, then the Cartesian product A x B is also uncountable.If A is infinite (even countably infinite) then the power set of A is uncountable. Two other examples, which are related to one another are somewhat surprising. Not every subset of the real numbers is uncountably infinite (indeed, the rational numbers form a countable subset of the reals that is also dense). Certain subsets are uncountably infinite. One of these uncountably infinite subsets involves certain types of decimal expansions. If we choose two numerals and form every possible decimal expansion with only these two digits, then the resulting infinite set is uncountable. Another set is more complicated to construct and is also uncountable. Start with the closed interval [0,1]. Remove the middle third of this set, resulting in [0, 1/3] U [2/3, 1]. Now remove the middle third of each of the remaining pieces of the set. So (1/9, 2/9) and (7/9, 8/9) is removed. We continue in this fashion. The set of points that remain after all of these intervals are removed is not an interval, however, it is uncountably infinite. This set is called the Cantor Set. There are infinitely many uncountable sets, but the above examples are some of the most commonly encountered sets.