Skeletal Muscles
... heart muscle begins a quivering motion due to a disunity in contractile cell function. Fibrillation can affect the atrium (atrial fibrillation) or the ventricle (ventricular fibrillation); ventricular fibrillation is imminently life-threatening. •Atrial fibrillation is the quivering, chaotic motion ...
... heart muscle begins a quivering motion due to a disunity in contractile cell function. Fibrillation can affect the atrium (atrial fibrillation) or the ventricle (ventricular fibrillation); ventricular fibrillation is imminently life-threatening. •Atrial fibrillation is the quivering, chaotic motion ...
B2B - Cardiac Surgery Dr. Khanh Lam
... • An 19 year old male is received a single stab wound to the chest outside a night club. He is brought to the ER, conscious and complaining of pain and shortness of breath. On examination, you observe a 3cm wound just left of his sternum in the 5th interspace. His BP is 85/60, P100, RR18, 95% on 2L/ ...
... • An 19 year old male is received a single stab wound to the chest outside a night club. He is brought to the ER, conscious and complaining of pain and shortness of breath. On examination, you observe a 3cm wound just left of his sternum in the 5th interspace. His BP is 85/60, P100, RR18, 95% on 2L/ ...
Heart Failure Fact Sheet - Barth Syndrome Foundation
... • Atrium is the chamber of the heart that collects blood returning from the rest of the body. In all vertebrates but fish, there are two atria, left and right. The right atrium collects deoxygenated blood from the body and passes it to the right ventricle. The left atrium collects oxygenated blood f ...
... • Atrium is the chamber of the heart that collects blood returning from the rest of the body. In all vertebrates but fish, there are two atria, left and right. The right atrium collects deoxygenated blood from the body and passes it to the right ventricle. The left atrium collects oxygenated blood f ...
Practical Approach to SVT - Department of Medicine UBC
... Should we leave PAF alone? Insights from CARAF ...
... Should we leave PAF alone? Insights from CARAF ...
lesson8_fa03
... Local vasospasm of the small arteries • secondary to systemic diseases • Scleroderma, pulmonary hypertension, malignancy ...
... Local vasospasm of the small arteries • secondary to systemic diseases • Scleroderma, pulmonary hypertension, malignancy ...
Query-Heart-failure
... hypertrophic, restrictive, arrhythmogenic right ventricular, and unclassified (Cleveland Clinic: Current Clinical Medicine, 2nd ed., William D. Carey, 2010) Common etiologies of cardiomyopathy include: Alcohol-induced, drug toxicity, hypertension, diabetes, amyloidosis, ischemia, inherited, viral, t ...
... hypertrophic, restrictive, arrhythmogenic right ventricular, and unclassified (Cleveland Clinic: Current Clinical Medicine, 2nd ed., William D. Carey, 2010) Common etiologies of cardiomyopathy include: Alcohol-induced, drug toxicity, hypertension, diabetes, amyloidosis, ischemia, inherited, viral, t ...
Relating noninvasive cardiac output and total peripheral resistance
... sharper decrease in TPR than noted in those activities. Afterwards CO falls quickly and TPR rises close to the initial ...
... sharper decrease in TPR than noted in those activities. Afterwards CO falls quickly and TPR rises close to the initial ...
Cardiac Assessment Outline
... – Change in level of consciousness • Assessment Questions for Cardiac Pain – P: position/location (where? And provocation (what makes it worse?)) – Q: quality (describe the pain) – R: radiate? Relief? (does the pain radiate anywhere, and if so, where? What gives you relief) – S: severity (pain scale ...
... – Change in level of consciousness • Assessment Questions for Cardiac Pain – P: position/location (where? And provocation (what makes it worse?)) – Q: quality (describe the pain) – R: radiate? Relief? (does the pain radiate anywhere, and if so, where? What gives you relief) – S: severity (pain scale ...
3-27-17
... of blood through the heart. Compare the pulmonary & system circuits & explain the operation of the heart valves. Compare & contrast the structure & function of all the vessels in the cardiovascular syst. Procedure: Lab: Id heart structures w/models & explain blood flow. Evaluation: Independent pract ...
... of blood through the heart. Compare the pulmonary & system circuits & explain the operation of the heart valves. Compare & contrast the structure & function of all the vessels in the cardiovascular syst. Procedure: Lab: Id heart structures w/models & explain blood flow. Evaluation: Independent pract ...
Heart Rate The interval between two successive R waves
... The interval between two successive R waves corresponds to the duration of one cardiac cycle. This allows the heart rate to be calculated from moment to moment. 60 s/R-R interval (s) = beats/min (e. g., 60/0.8 = 75) At rest the heart beats about 70 times per minute (normal sinus rhythm). Arise in fr ...
... The interval between two successive R waves corresponds to the duration of one cardiac cycle. This allows the heart rate to be calculated from moment to moment. 60 s/R-R interval (s) = beats/min (e. g., 60/0.8 = 75) At rest the heart beats about 70 times per minute (normal sinus rhythm). Arise in fr ...
Heart rhythm 101
... recovering from hip surgery. She has had a fever and a “cold” for the last 2 days. She is ordered to receive Sudafed to relieve nasal congestion. Mrs. X states she is feeling very weak. She sounds short of breath with minimal exertion. As a diligent LPN, you check her pulse and her blood pressur ...
... recovering from hip surgery. She has had a fever and a “cold” for the last 2 days. She is ordered to receive Sudafed to relieve nasal congestion. Mrs. X states she is feeling very weak. She sounds short of breath with minimal exertion. As a diligent LPN, you check her pulse and her blood pressur ...
Heart Failure Presentation - Dorset County Hospital NHS
... Open access ECHOs – if heart failure confirmed this will result in direct referral to the service for assessment/ further investigations and formulation of management plan ...
... Open access ECHOs – if heart failure confirmed this will result in direct referral to the service for assessment/ further investigations and formulation of management plan ...
The QT interval: How long is too long?
... is TdP, look at the beats around it. First the QT interval will be prolonged, usually with a pause in the heartbeat followed by a beat with a bizarre T wave. This is where TdP usually starts. When this happens, the cardiac output drops and the patient doesn’t get enough oxygen to the brain and can f ...
... is TdP, look at the beats around it. First the QT interval will be prolonged, usually with a pause in the heartbeat followed by a beat with a bizarre T wave. This is where TdP usually starts. When this happens, the cardiac output drops and the patient doesn’t get enough oxygen to the brain and can f ...
Heart Failure
... (envelope) at the same time on which both isotonic contraction curves and afterloaded contraction curves end. The definitive length of a muscle at the end of the contraction is proportionally dependent on the afterload, but it is independent on the length of a muscle before the contraction, i.e, on ...
... (envelope) at the same time on which both isotonic contraction curves and afterloaded contraction curves end. The definitive length of a muscle at the end of the contraction is proportionally dependent on the afterload, but it is independent on the length of a muscle before the contraction, i.e, on ...
Snímek 1
... Primary myocardium muscle dysfunction valvular abnormalities hypertension alcohol and drug-induced idiopathic ...
... Primary myocardium muscle dysfunction valvular abnormalities hypertension alcohol and drug-induced idiopathic ...
CHF from HTN
... C. Structural changes in the cardiac valves produce abnormal hemodynamics. D. Afterload becomes so high that the ventricles cannot maintain adequate ...
... C. Structural changes in the cardiac valves produce abnormal hemodynamics. D. Afterload becomes so high that the ventricles cannot maintain adequate ...
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1 Atrial Fibrillation Fact Sheet • In atrial fibrillation (A Fib), the
... In atrial fibrillation (A Fib), the electrical signals that coordinate the muscle of the upper chamber (atria) of the heart become rapid and disorganized; resulting in an irregular heartbeat (arrhythmia), often greater than 300 beats per minute. In atrial flutter (AFL), a single electrical wave ci ...
... In atrial fibrillation (A Fib), the electrical signals that coordinate the muscle of the upper chamber (atria) of the heart become rapid and disorganized; resulting in an irregular heartbeat (arrhythmia), often greater than 300 beats per minute. In atrial flutter (AFL), a single electrical wave ci ...
Massively parallel simulation of cardiac electrical
... body in the form of the electrocardiogram (ECG). The QT interval, the time between the ”QRS” complex and the ”T” wave in the ECG, roughly corresponds to the period of time between the upstroke of the AP and repolarization. Heart rhythm disorders, or arrhythmias, refer to a disruption of the normal e ...
... body in the form of the electrocardiogram (ECG). The QT interval, the time between the ”QRS” complex and the ”T” wave in the ECG, roughly corresponds to the period of time between the upstroke of the AP and repolarization. Heart rhythm disorders, or arrhythmias, refer to a disruption of the normal e ...
Cardiac dysrhythmias in clinically healthy heifers and cows
... farm, all cattle over one year of age were used for ECG recording, irrespective of pregnancy and lactation status, and providing that the animals were healthy with no clinical signs of any organ abnormalities. The ECG was usually recorded in the morning between 9.00 to 12.00 without disturbing the m ...
... farm, all cattle over one year of age were used for ECG recording, irrespective of pregnancy and lactation status, and providing that the animals were healthy with no clinical signs of any organ abnormalities. The ECG was usually recorded in the morning between 9.00 to 12.00 without disturbing the m ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.