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ekg 50bquestion
| Question | Answer |
|---|---|
| Innervation of the heart arises in the_____ of the Brain. | Medulla |
| _______ is the electrical recovery of the heart. | Repolization |
| The Heart has four chambers divided by the _____ | Septum |
| Lead____ records voltage from the Left___to the Left __________ | 3,arm,leg |
| Blood saturated with carbon dioxide enters the right_____through the ______________ ________and the ______________ | Atrium,superior venacava and the inferior venacava |
| Lead___ records voltage down through the long axis of the heart, from the Right____ to the Left ____ | 2,Arm,leg |
| Newly enriched blood flows back to the heart on the second leg of its trip via the______ to the Left________ | pulmonary vein,atrium |
| Depolarization is another word for __________ of electrical energy. | discharge |
| Lead____ records the voltage through the heart from the right arm to the left arm. | 1 |
| Ventricular depolarization=__________ | the QRS complex |
| The ECG records the ________,not the image of the heart itself. | electrical activity |
| Contraction begins with a tiny electrochemical "explosion" generated by specialized cells in the ____________node(SA NODE) in the right _______ | Sinal atrial,atrium |
| Activity in the ventricular myocardium take place as the impulse travels through the bundle of His, the right and left_____and the __________Network. | Bundle branch, Purkinje |
| The ECG is a recording of the _________ impulses associated with cardiac contraction and relaxation | electrical |
| Transition period between (V)depolarization and repolarizaton is the ______________. | ST Segment |
| Three words describe the activity of the heart: | Depolarizaton,Repolarization,Polarization. |
| Atrial Depolarization= | P Wave |
| Oxygenated blood returns to the heart at the left____ | Atrium |
| The______wave,represent the impulse that causes the atria to ________ | P, contract |
| Lead 1,2,and3, form a triangle called_________ | Einthoven's Triangle |
| The time it takes the impulse to travel from the SA node to the AV node is=__________ | PR Intervals |
| The blood enters the left ________and forced out through the ________to the body carrying oxygen and nutrients to body tissue | Ventricles,Aorta |
| The right leg sensor is called the _____or _______electrode. | Ground or References |
| (V)repolarization=_____ | T-Wave |
| Polarization= | the heart at rest |
| The entire____intervals indicates the amount of time between the begining of venticular recovery | QT |
| Following the U wave,the heart is polarized or at __ | Rest |
| An _____ are images of the heart taken from different angles. | EKG |
| The heart is called the _ | Pump |
| The "angles"produced by the ECG, are recorded by various combinations of Ten sensors:____limb sensors and_____Chest sensors | 4,6 |
| The four______sensors used in recording the cardiac voltage are: | limb,RightArm,LeftArm,RightLeg,Leftleg |
| Time from the begining of the ventricular contraction to completion of ventricular recovery is known as______ | QT Intervals |
| Lead1,Lead 2,Lead 3 are called_______limb leads,or ____leads | Standard limb or bipolar leads |
| The four chambers are divided to form two pumps, each consisting of one ________and a corresponding_______. | Atrium, Ventrical |
| The ECG records two functions, the_____of voltage generated by the heart and _______required for the voltage to travel through the heart | Amount, Time |
| _______simply refers to the heart at rest. | polarization |
| To make an extremely small ECG larger you would set the sensitivity switch to: | 20mm,2 |
| The devices that sense the skin voltage are____ | sensor |
| An ECG is normally recorded at a speed of___ | 25mm. |
| An apprehensive patient is likely to have what kind of artifacts in the recording ______ | Somatic Tremor |
| True or False: Limb sensors have to be placedat specific places on the limbs | False |
| True or False:Chest sensors require precise and proper placement | True |
| V4 should be placed at:_______intercostal space,________line. | Fifth, Midclavicular line |
| Electrolyte paste is used as a________ | Conductor |
| Vertical Axis of the ECG represents________ | Voltage |
| Horizontal Axis of the ECG represents________ | Time |
| Sensors used for Lead 2 are____________and _________. | Right Arm,Left leg |
| Sensors used for Lead1 are____and _________ | Right Arm, LeftArm. |
| Augmented leads are also called: | Unipolar |