MLPAO Test Prep ~ ECG questions and answers well illustrated.

MLPAO Test Prep ~ ECG questions and answers well illustrated. 4th intercostal space R sternal border - correct answers.V1 placement V1 - correct answers.4th intercostal space R sternal border 4th intercostal space L sternal border - correct answers.V2 placement V2 - correct answers.4th intercostal space L sternal border Between leads V2 and V4 - correct answers.V3 placement V3 - correct answers.Between leads V2 and V4 5th L intercostal space in midclavicular line - correct answers.V4 placement V4 - correct answers.5th L intercostal space in midclavicular line Horizontally even with V4, but in the anterior axillary line - correct answers.V5 placement V5 - correct answers.Horizontally even with V4, but in the anterior axillary line Horizontally even with V4 and V5 in the midaxillary line - correct answers.V6 placement V6 - correct answers.Horizontally even with V4 and V5 in the midaxillary line I, II, II - correct answers.Which leads are the Limb Leads? Bipolar - correct answers.Limb leads are [UNIPOLAR/BIPOLAR] Chest Leads - correct answers.Precordial leads are also called? V1-6 - correct answers.Which leads are the precordial leads? Unipolar = Precordial leads are [UNIPOLAR/BIPOLAR]? - correct answers. aVR, aVF, aVL - correct answers.Which leads are the augmented limb leads? Unipolar - correct answers.Augmented Limb Leads are [UNIPOLAR/BIPOLAR] Back Leads - correct answers.15 leads includes the regular 12 leads plus what? Unipolar - correct answers.Back leads are [UNIPOLAR/BIPOLAR]? Movement, medical devices, incorrect placement of leads, (electrolyte imbalance, thickening of heart muscle, fluctuation in body temperature) - correct answers.Common sources of artifacts Dirty/loose electrodes or machine cables (moving during analysis) - correct answers.Wandering baseline caused by Wandering baseline - correct answers.Dirty/Loose electrodes or machine cables moving during analysis causes Irregular tracings - correct answers.Muscle tremors cause Muscle tremors - correct answers.Irregular tracings caused by Blanket over patient - correct answers.What can be done to reduce tremors in clients with Parkinson's disease? P wave - correct answers.Which part of the ECG tracing represents atrial depolarization? QRS Complex - correct answers.Which part of the ECG tracing represents ventricular depolarization? R Wave - correct answers.Which part of the ECG tracing represents the initial positive deflection? S Wave - correct answers.Which part of the ECG tracing represents the negative deflection following the R wave? Q Wave (often absent) - correct answers.Which part of the ECG tracing represents the first downward wave of the QRS complex? T Wave - correct answers.Which part of the ECG tracing represents ventricular repolarization? Atrial depolarization - correct answers.P wave represents? Ventricular depolarization - correct answers.QRS Complex represents? Initial positive deflection - correct answers.R wave represents? Negative deflection following the R wave - correct answers.S wave represents? First downward wave of the QRS complex (often absent) - correct answers.Q wave represents? Ventricular repolarization - correct answers.T wave represents? 0.12 - correct answers.P wave reference range: __s 2.5 - correct answers.P wave amplitude reference range: ___ mm 1:1 - correct answers.Normal sinus rhythm displayed to have a ____ P:QRS ratio AV - correct answers.P wave can also be initiated by ____ in certain disease processes I, II, V2-V6 - correct answers.P wave is upright in which leads? V1 - correct answers.P wave is biphasic in which leads? aVR - correct answers.P wave is inverted in which leads? Atrial Flutter (or atrial fibrillation), Heart Block, Junctional Rhythm - correct answers.Abnormalities associated with the P wave? 0.12-0.20 - correct answers.PRI length reference range is: ____s AV node - correct answers.Slow conduction through the ____ ____ causes a prolonged PR interval (Longer than 0.20s) Prolonged PRI - correct answers.Slow conduction through the AV node causes _____ 1st degree heart block - correct answers.Abnormality associated with prolonged PRI Pre-excitation accessory pathway - correct answers.Abnormalities associated with shortened PRI 0.12 - correct answers.QRS complex length reference range: ___s Less, block - correct answers.When the QRS complex is ____ than 0.12s it means there is a ____in the conduction system and its ability to conduct electricity Bundle Branch Block, (PVCs, Ischemia, Electrolyte Imbalance, Hypothermia) - correct answers.Abnormalities associated with the QRS complex 0.04 - correct answers.Q wave normal reference range: ____s MI, (obstructive, septal, hypertrophy) - correct answers.Abnormalities associated with Q wave Hypertrophy of ventricles - correct answers.Abnormalities associated with S wave Isoelectric line - correct answers.ST segment is typically aligned with the ___ ___