Variability between beats. Medical search. Frequent questions

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Anatomy23

Autonomic Nervous System Cilia Heart Sympathetic Nervous System Vagus Nerve Parasympathetic Nervous System Sinoatrial Node Heart Ventricles Cardiovascular System Sperm Tail Atrioventricular Node Heart Atria Pressoreceptors Brain Myocardium Bundle of His Nasal Mucosa Muscle, Skeletal Turbinates Peroneal Nerve Sympathetic Fibers, Postganglionic Flagella Fingers

Organisms4

Dogs Cats Rabbits Swine

Diseases27

Ventricular Premature Complexes Arrhythmias, Cardiac Atrial Premature Complexes Bradycardia Tachycardia Arrhythmia, Sinus Tachycardia, Ventricular Heart Block Autonomic Nervous System Diseases Atrial Fibrillation Ventricular Fibrillation Hypertension Tachycardia, Sinus Heart Failure Ciliary Motility Disorders Myocardial Ischemia Torsades de Pointes Myocardial Infarction Disease Models, Animal Body Weight Tachycardia, Supraventricular Coronary Disease Death, Sudden, Cardiac Gait Disorders, Neurologic Long QT Syndrome Cardiomyopathy, Dilated Sick Sinus Syndrome

Chemicals and Drugs19

Anti-Arrhythmia Agents Adrenergic beta-Antagonists Propranolol Atropine Atenolol Oxygen Isoproterenol Norepinephrine Metoprolol Epinephrine Propanolamines Phenylephrine Carbon Dioxide Biological Markers Calcium Adrenergic beta-Agonists Cardiotonic Agents Glycopyrrolate Catecholamines

Analytical, Diagnostic and Therapeutic Techniques and Equipment87

Heart Rate Electrocardiography Reproducibility of Results Observer Variation Blood Pressure Electrocardiography, Ambulatory Analysis of Variance Cardiac Pacing, Artificial Reference Values Models, Biological Sensitivity and Specificity Models, Cardiovascular Linear Models Exercise Test Regression Analysis Telemetry Predictive Value of Tests Models, Statistical Pulse Stroke Volume Prospective Studies Cardiac Output Data Interpretation, Statistical Nonlinear Dynamics Models, Theoretical Fourier Analysis Fractals Mucociliary Clearance Sequence Analysis, DNA Monitoring, Physiologic Acoustic Stimulation Gait Pacemaker, Artificial Cross-Over Studies Magnetic Resonance Imaging Risk Factors Stochastic Processes Statistics as Topic Treatment Outcome Sperm Motility Follow-Up Studies Tilt-Table Test Blood Flow Velocity Double-Blind Method Electric Stimulation Models, Genetic Retrospective Studies Area Under Curve Blood Pressure Monitoring, Ambulatory Statistics, Nonparametric Case-Control Studies Image Interpretation, Computer-Assisted Severity of Illness Index Models, Neurological Echocardiography Diagnosis, Computer-Assisted Polymerase Chain Reaction Cluster Analysis Cohort Studies Artifacts Electroencephalography Reflex Imaging, Three-Dimensional Electrophysiologic Techniques, Cardiac Blood Pressure Determination Infusions, Intravenous Reference Standards Disease Models, Animal Body Weight Brain Mapping Valsalva Maneuver Risk Assessment Perfusion Longitudinal Studies Probability Oscillometry Principal Component Analysis Anesthesia Bayes Theorem Prognosis Random Amplified Polymorphic DNA Technique Catheter Ablation Photic Stimulation Electromyography Visual Field Tests Body Temperature Magnetocardiography

Psychiatry and Psychology10

Individuality Reaction Time Psychomotor Performance Auditory Perception Consciousness Time Perception Reflex Task Performance and Analysis Sleep Motor Skills

Phenomena and Processes89

Heart Rate Genetic Variation Blood Pressure Time Factors Baroreflex Hemodynamics Algorithms Sensitivity and Specificity Circadian Rhythm Phenotype Posture Genotype Action Potentials Phylogeny Respiration Species Specificity Supine Position Climate Movement Ventricular Function Polymorphism, Genetic Physical Exertion Pulse Ventricular Function, Left Stroke Volume Cardiac Output Cardiovascular Physiological Phenomena Heart Rate, Fetal Periodicity Biomechanical Phenomena Seasons Oxygen Consumption Reaction Time Ecosystem Aging Fourier Analysis Fractals Mucociliary Clearance Psychomotor Performance Dose-Response Relationship, Drug Gait Adaptation, Physiological Systole Exercise Base Sequence Stochastic Processes Rain Respiratory Mechanics Alleles Sperm Motility Environment Mutation Blood Flow Velocity Atrial Function Temperature Area Under Curve Cardiac Volume Diastole Coronary Circulation El Nino-Southern Oscillation Musculoskeletal Development Amino Acid Sequence Walking Entropy Pregnancy Microsatellite Repeats Ventricular Pressure Polymorphism, Single Nucleotide Reflex Vascular Resistance Regional Blood Flow Evolution, Molecular Refractory Period, Electrophysiological Sleep Body Weight Biological Evolution Haplotypes Sex Characteristics Valsalva Maneuver Weather Energy Metabolism Gene Frequency Swimming Probability Oceans and Seas Selection, Genetic Flight, Animal Body Temperature Blood Volume

Disciplines and Occupations5

Nonlinear Dynamics Geography Statistics as Topic Pharmacogenetics Genetics, Population

Anthropology, Education, Sociology and Social Phenomena5

Exercise Walking Diving Population Dynamics Swimming

Technology, Industry, Agriculture1

Quality Control

Humanities1

Information Science16

Signal Processing, Computer-Assisted Algorithms Phylogeny Computer Simulation Molecular Sequence Data Telemetry Image Processing, Computer-Assisted Data Interpretation, Statistical Fourier Analysis Base Sequence Video Recording Image Interpretation, Computer-Assisted Diagnosis, Computer-Assisted Amino Acid Sequence Imaging, Three-Dimensional Feedback

Named Groups1

Infant, Newborn

Health Care40

Reproducibility of Results Observer Variation Analysis of Variance Sensitivity and Specificity Linear Models Climate Regression Analysis Predictive Value of Tests Models, Statistical Prospective Studies Seasons Data Interpretation, Statistical Ecosystem Environmental Monitoring Cross-Over Studies Age Factors Risk Factors Stochastic Processes Rain Statistics as Topic Treatment Outcome Environment Follow-Up Studies Double-Blind Method Retrospective Studies Temperature Area Under Curve Statistics, Nonparametric Case-Control Studies Severity of Illness Index Cluster Analysis Cohort Studies Sex Factors Diving Population Dynamics Weather Risk Assessment Longitudinal Studies Probability Bayes Theorem

Geographicals1

Oceans and Seas

Anatomy Organisms Diseases Chemicals and Drugs Analytical, Diagnostic and Therapeutic Techniques and Equipment Psychiatry and Psychology Phenomena and Processes Disciplines and Occupations Anthropology, Education, Sociology and Social Phenomena Humanities Information Science Named Groups Health Care

Heart Rate Autonomic Nervous System Electrocardiography Reproducibility of Results Genetic Variation Observer Variation Blood Pressure Electrocardiography, Ambulatory Time Factors Cilia Ventricular Premature Complexes Heart Arrhythmias, Cardiac Baroreflex Atrial Premature Complexes Analysis of Variance Signal Processing, Computer-Assisted Dogs Sympathetic Nervous System Cardiac Pacing, Artificial Bradycardia Tachycardia Hemodynamics Reference Values Algorithms Vagus Nerve Models, Biological Sensitivity and Specificity Arrhythmia, Sinus Parasympathetic Nervous System Circadian Rhythm Models, Cardiovascular Individuality Phenotype Posture Genotype Action Potentials Phylogeny Computer Simulation Sinoatrial Node Heart Ventricles Respiration Linear Models Exercise Test Species Specificity Supine Position Molecular Sequence Data Climate Movement Regression Analysis Anti-Arrhythmia Agents Ventricular Function Telemetry Adrenergic beta-Antagonists Predictive Value of Tests Tachycardia, Ventricular Models, Statistical Polymorphism, Genetic Physical Exertion Heart Block Pulse Cardiovascular System Sperm Tail Ventricular Function, Left Image Processing, Computer-Assisted Stroke Volume Prospective Studies Cardiac Output Cardiovascular Physiological Phenomena Heart Rate, Fetal Periodicity Music Biomechanical Phenomena Autonomic Nervous System Diseases Seasons Oxygen Consumption Reaction Time Data Interpretation, Statistical Nonlinear Dynamics Atrial Fibrillation Ecosystem Propranolol Aging Atrioventricular Node Models, Theoretical Fourier Analysis Fractals Mucociliary Clearance Sequence Analysis, DNA Monitoring, Physiologic Atropine Psychomotor Performance Acoustic Stimulation Dose-Response Relationship, Drug Gait Geography Environmental Monitoring Ventricular Fibrillation Pacemaker, Artificial Adaptation, Physiological

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