LSU, STAT 7005

Excerpt: ... Quiz 6) An investigator of Health Insurance programs wants to compare the mean length of stay in the hospital for two types of programs, fee-for-service insurance (FFS) and health maintenance organizations (HMO). All patients studied were being treated for congestive heart failure . Examination of 154 patients showed that the mean length of stay for HMO patients (n=39) was 4.95 days and the mean for FFS patients (n=115) was 5.32 days. What type of test should be used to compare these means? ...

Nova Southeastern University, COM 101

Excerpt: ... . 188 Please rephrase the second sentence within "Treatment" (second) paragraph to read as: "IVIG or RhoGAMTM may be used in patients with profoundly low plately counts (<10,000 L) or in patients at risk for life-threatening bleeding. Note that RhoGAM may only be used in Rh-positive patients; thus, it is not considered a first-line therapy." Please replace the thoracentesis paragraph ("Thoracocentesis is the most important."; near top of page) with the following: Thoracentesis should be performed for new and unexplained pleural effusions when sufficient fluid is present to allow a safe procedure. It is reasonable to observe pleural effusion(s) when there is overt congestive heart failure (especially if bilateral), viral pleurisy, or recent thoracic or abdominal surgery. However, it is important not to assume that new effusions in a patient with a history of congestive heart failure (CHF) is solely due to the CHF. Have a low threshold for performing diagnostic thoracentesis in any new or unexplained eff ...

Western Washington, BIOL 349

Excerpt: ... ng why it is important, keeping your audience in mind as well as the purpose of your presentation. Step 2: Gather information from any available sources, including lecture notes, textbooks, library research, lab investigations, and your personal experiences. Create connections between the concepts studied in class and the questions in this problem set. Step 3: Organize the information you've gathered to answer all of the questions (e.g. in outline form, a concept map, algorithm, or flow chart). Step 4: Use at least one analogy in your solution to each question/problem. Step 5: Prepare for your presentation (i.e. practice!), and present your solution to the class when called upon. You must satisfy the requirements of the presentation guidelines (posted on the course web site) in order to receive full credit. 1. An estimated 75% of patients who suffer a heart attack (myocardial infarction) will develop congestive heart failure , leading to disability and an increased risk for other pathologies. Two hormones are ...

LSU, STAT 7005

Excerpt: ... Quiz 7) An investigator of Health Insurance programs wants to determine if there is a difference in the type of attending physician for two types of programs, fee-forservice insurance (FFS) and health maintenance organizations (HMO). All patients studied were being treated for congestive heart failure . The results for 154 patients are tabulated below. What type of test should be used to determine if the two types of programs differ in terms of the type of attending physician? Distribution of Subjects by Attending Physician and Insurance Plan. Type of Plan Payor FFS HMO Total - Attending Physician -Cardiology Family_Practice Medicine Other 50 16 43 6 18 5 13 3 68 21 56 9 Total 115 39 154 ...

UNC, BIOS 662

Excerpt: ... ght for each year of age; ARIC: change in carotid artery wall thickness with age; 2. To develop predictions Example: given blood pressure at age 10, what would we expect blood pressure to be at age 15? 3. To examine the association between the changes in 2 or more variables Example: is change in weight associated with change in carotid artery wall thickness? BIOS 162: Lecture 1 4 Study Designs Cohort Studies Definition: Cohort identified at beginning of study and followed to observe occurrence of disease Purposes: 1. Estimate incidence of disease; relate baseline measures to the occurrence of disease Example: Framingham Heart Study BIOS 162: Lecture 1 5 Study Designs Experimental Studies Definition: Interventions are applied by investigator; Usually use randomization Purpose: 1. to compare outcomes between two or more interventions Example: Does enalapril (a drug) reduce mortality in patients with congestive heart failure ? BIOS 162: Lecture 1 6 Study Designs Homework 1 1. Read Chs 1 and ...

Cornell, PHYS 1112

Excerpt: ... Arteriosclerosis and Congestive Heart Failure : Aorta Left Ventricle Arteriosclerosis and Congestive Heart Failure : Arteries expand when heart pumps blood into them, producing a propagating "pulse wave". Arterial expansion Vartery Pheart needed to pump Vblood into artery Work by heart Wheart Pheart Vblood Arteriosclerosis: Arteries become less elastic so Pheart and Wheart must if blood flow is to be maintained. "high blood pressure" Congestive heart failure : Blood volume pumped by heart gradually decreases due to failure of heart muscle Dynamics:Siphon Pressuresameatsurface(atmosphere) Pressuregreateratthisendoftube:drivesflow ...

Georgia Tech, HPS 1040

Excerpt: ... Toward the heart Capillaries Heart Consists of four chambers Upper atria Lower ventricles Heart has two circulatory systems Pulmonary circulation Systematic circulation Major Forms of Cardiovascular Disease CAD (Coronary Artery Disease) Atherosclerosis: build up of plaque on the arteries. A form of arteriosclerosis (hardening of the arteries) Arteries become narrow due to plaque buildup. This process deprives blood and vital oxygen to specific organs, such as the heart, brain, etc. Results in the following: Coronary Heart Disease Stroke Peripheral Arterial Disease Hypertension Stroke Congestive Heart Failure Disease Process Coronary artery disease is the most common form of cardiovascular disease. This process involves the slow gradual buildup of plaque within the arteries. Over many years, plaque reduces the blood supply to the heart tissue. This may result in either the onset of symptoms or a heart attack. In this heart (picture in slides), a blockage has completely cut off the blood supply in the left ...

USC, PTHL 312

Excerpt: ... nitrogenous waste products accumulate in the serum, a condition known as azotemia (azo- = nitrogen). Azotemia is identified by measuring the amount of nitrogen contained in blood urea; the test used for this measurement is the blood urea nitrogen test or, as it is more commonly called BUN. Uremia The myriad clinical features that accompany renal failure are referred to by the word uremia. They comprise a syndrome produced by cessation of the many excretory, physiologic and endocrine functions of the kidneys. In common usage, the word uremia is more or less synonymous with the phrase end stage renal disease in the same way the word decompensation is synonymous with congestive heart failure . Uremia is accompanied with some or all of the following signs and/or symptoms. Decreased urine output: the production of urine is decreased (oliguria) or stopped altogether (anuria). Proteins and blood appear in the urine: examination of urine from a uremic patient u ...

University of Texas, BIO 325

Excerpt: ... Name_ BIOLOGY 325H QUIZ 4 [5 pts] _ 1. [2 pts] Congestive heart failure leads to condition known as 'pulmonary edema' which makes the process of respiration less efficient. Pulmonary edema refers to a buildup of interstitial fluid between the epithelium of the alveolus and the pulmonary capillaries surrounding it. In Fick's Law of Diffusion, which variable(s) are altered by this buildup and why does that affect respiration? In pulmonary edema there is an increase in the distance O2 must diffuse in order to pass from the air in the alveolus to the blood inside a capillary. This is the variable 'L' in Fick's equation. The rate of diffusion is inversely proportional to distance, so pulmonary edema reduces the rate at which O2 diffuses from air to blood. 2. [2 pts] Briefly describe capillary effusion. NOTE: I am not asking you to explain why it occurs, but simply to describe what it is. Capillary effusion refer ...

JSCC, NUR 201

Excerpt: ... nursing interventions that are appropriate for managing the complications and implements the treatments prescribed by the physician. After the nursing diagnoses and collaborative problems have been identified, they are recorded on the plan of nursing care. Based on the assessment data, collaborative problems or potential complications for pneumonia, for example, may include the following: *Continuing symptoms after initiating of therapy *Atelectasis *Pleural effusion *Shock *Confusion *Respiratory failure *Superinfection For congestive heart failure may include the following: *Cardiogenic shock *Dysrhythmias *Thromboembolism *Pericardial effusion For hypertension may include the following: *Left ventricular hypertrophy *Renal insufficiency or failure *MI *Heart failure *TIAs *CVA *Retinal hemorrhage For hyperthyroidism may include the following: *Thyrotoxicosis or thyroid storm *Hypothyroidism For colorectral cancer may include the following: *Intraperitoneal infection *Bowel perforation *Comp ...

UWO, TEXT 348

Excerpt: ... Dr. Brian Larocque: Ischemic heart disease and congestive heart failure A. Atherosclerosis: leads to ischemic heart disease (angina/MI), congestive heart failure , cerebrovascular disease, peripheral vascular disease. In order to compromise flow through a vessel, at least 50-70% of the vessel lumen needs to be obstructed by atherosclerosis. This decrease in flow leads to ischemia and hypoxia in the tissues. In the heart this leads to angina or MI. B. Ischemic heart disease (IHD) 1. Anatomy: In the heart there are three main arteries: Right coronary artery Left anterior descending artery Circumflex artery Typically, the reduction of blood flow is not a problem at rest. It becomes a problem when there is an increase in demand. This sets the stage for angina or an MI. 2. Signs and symptoms of IHD: chest pain (angina). heavyness in the chest, arm, back, neck angle of jaw, shortness of breath, diaphoresis (sweating). Angina is reversible ischemia of the heart muscle. If full occlusion occurs . the patient will ...

UConn, PHRM 221

Excerpt: ... er occurs in the descending thin limb of Henle's loop. c. Net reabsorption of water occurs in the collecting ducts in the presence of ADH. d. Net bulk flow of interstitial fluid into the vasa recta occurs. A drug is given that blocks all sodium channels and transporters in the luminal membrane all along the tubule but does not act on the Na,K-ATPase pumps in the basolateral membrane. What happens to sodium reabsorption? 10. 11. 12. 13. 14. 15. 2 16. A patient is suffering from primary hyperaldosteronism, i.e., increased secretion of aldosterone, usually caused by an aldosterone producing adrenal tumor. Is plasma renin concentration higher or lower than normal? Control of potassium excretion is achieved mainly by regulating the rate of which of the following? a. Potassium filtration b. Potassium reabsorption c. Potassium secretion A person with congestive heart failure has an elevated plasma aldosterone and is retaining sodium. She has a normal plasma pH. She is started on diuretics ...