Electrocardiography: Chapter 5 & 6
Complete the following.An ________________ is an adhesive pad that contains conductive gel and is designed to be attached to the patient’s skin.Leads I, II, and III are known as ________________ leads; they require a positive and negative electrode.________ is measured on the horizontal line of the EKG paper.Amplitude or voltage is measured on the ____________ line of the EKG paper.EKG paper is divided into small squares, each of which is ________in height and width and represents a time interval of __________ seconds.Darker lines further divide the EKG paper every fifth square, both vertically and horizontally and represents a time of ______ seconds.A wave of waveform recorded on an EKG strip refers to movement away from the baseline or ___________________ line.Waveforms are represented as a positive deflection which is ________ the isoelectric line.Waveforms are represented as a negative deflection which is ____________the isoelectric line.The _____ wave represents depolarization of both the left and right atria.The _____ ______________ represents the time interval necessary for the impulse to travel from the SA node, through the intermodal pathways in the atria, and downward to the ventricles.The _________ complex represents the conduction of the electrical impulse from the bundle of His throughout the ventricular muscle, or ventricular depolarization.The ______ segment is the interval during which the ventricles are depolarized and ventricular repolarization begins.The _____wave represents ventricular repolarization.The PR interval should normally be _______ seconds or smaller.The QRS complex should normally be _______ seconds or smaller.The QRS complex is produced when the _____________________ depolarize.A graphic record of the electrical activity of the heart is an _________________________.The _____________ lead serves to minimize outside electrical interference.The exact portion of the heart being visualized depends on the placement of the _______________.Read every EKG strip from _____________ to ____________.The 5 step approach to EKG interpretation is known as Ms. Lisa’s “______________”.______________ ___________ is defined as the number of electrical complexes conducted through the myocardium in 60 seconds.Heart ____________ is defined as the sequential beating of the heart as a result of generation of electrical impulses. ______________ is defined as EKG waveforms from sources outside the heart.The point at which the QRS complex meets the ST segment is commonly referred to as the __ __________.The term supraventricular refers to a stimulus arising above the _______________.The sharp, negative deflection that follows the R wave is called the ___ __________.The first negative wave from is the ____ __________.The first positive wave from is the _____ __________. ................
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