exam 2- basic dysrhythmias Questions & Answers 100% Correct

what do you do if artifacts occur on an ECG? - ANSWERcheck connections in equipment rhythm starts in the SA node, 60-100 BPM, normal conduction pathway - ANSWERnormal sinus rhythm normal P wave length - ANSWER.06-.20 the time of passive of impulse through the atria, causing atrial depolarization (atrial contraction) - ANSWERP wave normal PR interval length - ANSWER.12-.20 time taken for the impulse the spread through the atria, AV node, and bundle of HIS, bundle branches, & purkinje fibers, right up until ventricular contraction. (atrial contraction -> beginning of ventricular contraction) - ANSWERPR interval normal QRS length - ANSWER<.12 time taken for depolarization of both ventricles (systole- ventricular contraction) - ANSWERQRS normal ST segment length - ANSWER.12 time between ventricular depolarization and repolarization; should be isoelectric. (end of systole -> beginning of diastole) - ANSWERST segment normal T wave length - ANSWER.16 ventricular relaxation (diastole) - ANSWERT wave is K or Na higher inside the cell? - ANSWERK is K or Na higher outside the cell? - ANSWERNa what happens with depolarization of a cell? - ANSWERNa influx into cell normal QT