• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Fatty acid oxidation inhibition with PPARa activation (FOXIB/PPARa
Fatty acid oxidation inhibition with PPARa activation (FOXIB/PPARa

... 4. CPT I inhibition in patients with heart failure Heart failure is a disease with many causes and one cannot simply extrapolate from animal experiments to heart failure in general. Nonetheless, the study by Lionetti et al. [7] is unique because it demonstrates its effects in a largeanimal model of ...
The Petpace Collar in Action Continuous, Remote Pulse Monitoring
The Petpace Collar in Action Continuous, Remote Pulse Monitoring

... ECG, the electrical signal of the heart, in order to diagnose arrhythmia (abnormal heart pace) and assess its severity. However, these devices have several limitations. They involve wires, known as leads that attach to the body. Therefore, when worn by a dog or a cat they require shaving, attaching ...
Genesis of Displacement of the Human Longitudinal
Genesis of Displacement of the Human Longitudinal

... results, gives an estimate of the expected displacement of the center of gravity as far as this is caused by the events inside the ventricles and the larger arteries. The result is shown as the heavy line in Figure 1, marked D-BCG, instant zero being taken as the instant of opening of the ...
exercise_physiology II for students
exercise_physiology II for students

... 46. The storage of what energy is most associated with premature fatigue during both aerobic and anaerobic exercise. a. amino acids b. glycogen c. ATP d. creatine phosphate 47. A motor neuron and all of the muscle fibers it innervates form a ___________. a. cross bridge b. mitochondria c. motor unit ...
Patient history
Patient history

... (slower production enables adaptive mechanisms of parietal pericardium) are factors important for the development of this condition. Cardiac tamponade occurs when the pressure in pericardial cavity is higher than pressure in right heart and subsequently in other heart partitions. Signs of tamponade ...
Atrial Fibrillation
Atrial Fibrillation

... • Deviation from NSR – The heart rate suddenly speeds up, often triggered by a PAC (not seen here) and the P waves are lost. ...
Unit 3-4 Circulatory System Notes File
Unit 3-4 Circulatory System Notes File

Heart Attacks as a Defense in Negligence Actions
Heart Attacks as a Defense in Negligence Actions

... The reason for this rule of law is based upon medical understanding of the nature of the heart. The heart is often compared with a pump. It pumps blood into the lungs, where the blood is purified and receives oxygen additives. Then the blood is pumped3 into all the other parts of the body, including ...
Heart Rate monitor
Heart Rate monitor

... phases of respiration. Irregular changes in heart rate occur in all people. Heart rate may be increased by exercise, nervous excitement, stress due to mental effort, by adrenaline entering the bloodstream or with increase in temperature caused by fever. The heart rate decreases when asleep and some ...
Current Guidelines and Recommendations for Echocardiography in
Current Guidelines and Recommendations for Echocardiography in

... This  joint  statement  describes  how  the  Focused  Cardiac  Ultrasound  (FOCUS)  is   essential  to  patient  care  in  the  emergency  room  and  complimentary  to  an  extensive   echocardiographic  exam.    The  presentation  of  pati ...
Discoverer of Blood Circulation
Discoverer of Blood Circulation

... the two cavities.”6 Harvey visualises circulation “as a cyclic process of blood regeneration” in which “blood that went out from the heart to the tissues in a hot and vaporous condition returns to it cooled down and condensed.” At the commencement of the passage in chapter 8 he suggests a purpose fo ...
211 Atrial Dysrhythmias notes
211 Atrial Dysrhythmias notes

...  Calculate heart rate, which should be between 60-100.  Measure regularity of R waves (R to R interval) and P waves (P to P interval).  Examine P waves for their preceding each QRS (R wave) and their sameness.  Measure the P-R interval, which should be between 0.12-0.20 seconds.  Measure the du ...
Heart Structure
Heart Structure

...  Epicardium – visceral layer of the serous pericardium ...
faisal2
faisal2

... is a portion of the heart with a more rapid discharge than the sinus node.  Also occurs when transmission from sinus node to A-V node is blocked (A-V block). ...
Artificial Hearts | Clinical Review Criteria
Artificial Hearts | Clinical Review Criteria

... study, evaluating the AbioCor device in an additional 25 patients. According to the FDA, the AbioCor artificial heart is indicated for use in patients who have both ventricles failing, have end-stage heart disease, are not transplant candidates, are less than 75 years old, are not treatable by singl ...
Mechanical Properties of the Heart Contractility Cardiac Cycle
Mechanical Properties of the Heart Contractility Cardiac Cycle

... – when Ao pressure increases abruptly, a positive inotropic effect follows within 1-2 minutes - mechanism: increased wall tension stimulates stretch receptors  a rise of [Ca++]i  The ”garden-hose” effect: ...
ATRIAL FIBRILLATION DOUBLED IN
ATRIAL FIBRILLATION DOUBLED IN

... documented for the first time in such large homogenous series of ACPE patients without AMI. As early as 1938, as cited by Gallagher and Camm [9], Brill observed that AF may cause HF without any other heart disease and following AF cease, recovery may be complete and long lasting. AF is a strong inde ...
A Brief History of the Discovery of the Circulation of Blood in the
A Brief History of the Discovery of the Circulation of Blood in the

... in religious jurisprudence and theology. Ibn Nafis wrote an encyclopedia of medicine called alShamil fi -Tebb as well as several other books and commentaries, one of which is on Ibn Sina’s Qanun fi-al-Tebb (the Avicenna’s Canon of Medicine). Most of these writings are sill extant.12 Up to the early ...
Lecture #18 - Suraj @ LUMS
Lecture #18 - Suraj @ LUMS

... Blood enterr the atria under low pressure. As the atria fill with blood pressure rises and eventually forces the tricuspid and bicuspid valves to open. • Stage 2 – Atrial systole, two atria contract at the same time and blood pumped into the ventricles. • Stage 3 – Ventricular systole, 0.2 secs late ...
Stingray Barb Injury: A Cause of Late Coronary Occlusion and
Stingray Barb Injury: A Cause of Late Coronary Occlusion and

... interatrial septum. The differential diagnoses can include bronchogenic cysts, ectopic thyroid (struma cordis), teratomas, and metastatic adenocarcinomas. The mean age at presentation is 38 years (range, birth to 78 years) and women are more frequently affected than men (approximately 3:1). Two thir ...
Chapter 20 The Heart
Chapter 20 The Heart

... equal volume of blood passes through both circuits but work load is different pulmonary circuit is short and low pressure circuit so right ventricle has to pump less systemic circuit is long and requires high pressure thus the left ventricle is much larger (3X) ...
2008 Fellowship Report: Jessica Clark
2008 Fellowship Report: Jessica Clark

... Activity #1: What is a scientist? (15 minutes) Since many children and teachers visualize scientists as middle-aged white males with wild hair, glasses and a lab coat, holding test tubes and working inside a laboratory, this activity was done to break these common stereotypic perceptions. I wanted t ...
Hospital Life Support and Automated External Defibrillation
Hospital Life Support and Automated External Defibrillation

... ATROPINE Used for asystole and pulseless electrical activity with a rate of less than 60 per min Recommend dose for adults is 3 mgs in a single dose Blocks the vagus nerve and increases sinus automaticity No evidence that it is effective in asystole ...
human cardiovascular physiology
human cardiovascular physiology

... The events of this cycle is the cardiac cycle which represents one heartbeat. Beginning with the heart in complete relaxation (diastole), blood pressure in the heart is very low. The atria are the first to contract in unison. They force the blood into the ventricles. Blood pressure begins to rise in ...
Massive Pulmonary Embolization
Massive Pulmonary Embolization

... bpm) and tachypnea (rate⫽34). Cardiac and pulmonary examinations were otherwise normal. Chest radiography was unremarkable except for postsurgical cardiac changes. The ECG demonstrated sinus tachycardia and an SI,QIII,TIII pattern (Figure 1), suggestive of pulmonary embolization. Laboratory examinat ...
< 1 ... 334 335 336 337 338 339 340 341 342 ... 562 >

Myocardial infarction



Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report