A: Effexor (venlafaxine) is an antidepressant in the class of drugs called selective norepinephrine reuptake inhibitors (SNRIs). SNRIs affect chemicals in the brain that may become unbalanced and cause depression. It is used to treat major depressive disorder, anxiety, and panic disorder.: Effexor (venlafaxine) belongs to the group of drugs known as selective serotonin and norepinephrine reuptake inhibitors (SSNRIs). Effexor affects chemicals in the brain called neurotransmitters and is used to treat depression, anxiety, and panic disorder.
An abnormal EKG can mean many things. Sometimes EKG abnormalities are a normal variation of a heartâs rhythm, which does not affect your health. Other times, an abnormal EKG can signal a medical emergency, such as a myocardial infarction (heart attack) or a dangerous arrhythmia. An EKG can determine if the heart is beating too fast or too slow. 2  Heart rhythm abnormalities. 3  A heart typically beats in a steady rhythm. 4  An EKG can reveal if the heart is beating out of rhythm or sequence. 5  Medication side effects.
Electrocardiograph (EKG) artifacts are defined as EKG abnormalities, which are a measurement of cardiac potentials on the body surface and are not related to electrical activity of the heart. As a result of artifacts, normal components of the EKG can be distorted. It is very important to recognize these artifacts, otherwise they can lead to unnecessary testing and therapeutic interventions. In this chapter, we will present the common causes and ways to characterize EKG artifacts.