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EKG CERTIFICATION ST
EKG Study guide DCCC
| Question | Answer |
|---|---|
| A U wave usually occurs | When Patient has Low K+ |
| The QRS Complex occurs | When Ventricles contract |
| On the EKG Machine | The Standards checks the voltage that the instrument is using |
| The Hearts has Four Valves made up from | Endocardium |
| The blood leaves the heart | though the pulmonic and aortic valves. Called Semi lunar Valves |
| Where does the blood return to the heart from the body? | It enter the right Atrium |
| Where does the Superior Vena Cava gets it blood from? | From the head , neck and upper extremities |
| What is the inter most layer of the Heart? | Endocardium |
| Congestive Heart Failure (CHF) | A condition when the heart, for what ever reason cannot meet the demands of the body. The body compensates in 3 ways |
| What are the two entrance Valves of the Heart? | Tricusip and Bicuspid Valves |
| What are the Semilunar Valves ? | Pulmonic and Aortic Valves |
| Pericardium | The Fibrous outer fluid layer that covers the heart & separate it from the Chest Cavity |
| P Wave | The contraction of the atrium |
| QRS complex | The contraction of the Ventricles |
| T Wave | The relaxation of the Ventricles |
| U Wave | Not always seen But represents Low Potassium (K+) |
| What is The Right and Left Atria known as? | Receiving Chambers |
| What Valve does the blood go threw from the left atrium to the left ventricle? | The mitral valve |
| The only way to Oxygenenate the blood is through..... | the Alveoli and Capillaries in the lings |
| What separate the right and left side of the heart? | is the Septum |
| What is the speed that the EKG is normally run? | 25 mm/sec |
| What is the ground Color? | green |
| What is the diameter of the Coronary Arties? | 1/8 inch |
| Another name for Bicuspid valve? | Mitral Valve |
| What is the purpose of the Gel on the Electrode? | To Conduct Electricity |
| Where does the Myocardium get nourishment from? | The Coronary Arteries |
| What happen if the blood supplies dies Myocardium? | The blood supply dies |
| What is the thickest layer of the Heart? | Myocardium |
| What is the size of the Heart? | The size of your Fist |
| Blood returns to the heart.... | inferior and superior vena cava |
| From the Inferior Vena Cava brings blood from.. | below the diaphram |
| The Superior Vena Cava gets blood from... | the head and upper extremities |
| What does the Pulmonary Veins function? | Carries High Oxygen blood; comes from the lungs and returns blood back to the left Atrium for circulation to body organs and cells. |
| The term for Rapid Heart Beat? | Tachycardium |
| Coronary Insufficiency ? | The Right and left coronary arteries supply blood to the heart. Flow is considered insufficient if it can not meet the needs of the heart |
| What is the purpose of the conduction system? | is to initiate the heart beat and regulate the cardiac cycle |
| Eptopic | is a adjective to a event or tissue occurring at a place other than normal location. Ectopic heart beats are generated from impulse originating some other place than the SA node |
| Where is the SA node located | Upper Wall of the right Atrium |
| What is the SA node Function | To generate the stimulus to make the heart beat |
| Systole | The heart is contracting |
| When the Patient heart beat slow they can suffer from.... | Syncope |
| The heart is located | In the mediastium |
| what is the function of the heart? | To pump sufficient amounts of blood to all of the cells in the body |
| When does the U wave usually appear? | After the T wave |
| What does Ischemia mean? | is reduced (ish) blood (emia). A condition of inadequate blood flow to a tissue. Ischemia to the heart can cause angina, and if present long enough, infarction. |
| What are the Chest leads called? | Percordial leads |
| The right leg electrodes show no cardiac information.. | and serves as a ground |
| What could a broken cable wire cause.... | a wondering base line |
| Mediastinum | is the space between the lungs in the chest cavity: hold the heart and other respiratory units |
| Electrodes are plates for.... | that come between the patient and the current |
| Where do the Augmented aVR leads go? | To the right Arm |
| When the Myocardium is Stimulated ... | It contracts |
| What is the Myocardium made of? | Muscle |
| If a patient has there right arm amputated above the elbow where do you put the leads? | You put the leads on the upper part of the arm. |
| If patient has amputation where do you put the leads? | The important thing is to put the leads the same corresponding location. |
| Pulmonary Artery | is the artery that carries low oxygen blood:leaves the right ventricle and goes to the heart |
| Normal Sinus Rhythm rate is | 60-100 beats per min-> each complex and normal in appearance |
| Bradycardia means | the heart rate is below 60 beats per min |
| Sinus Arrhythmia | can be cause by changes in Breathing |
| Asystole | Is a flat line, associated with dealth |
| Pulmonary Circulation | Circulation that goes to the heart's right atrium to the lungs where it is oxygenated and releases built up carbon dioxide |
| If the heart bear fires ectopically means... | the stimulus to generate the heart beat does not occur in the SA Node |
| Chordae Tendinea Means | Holds heart valve in place |
| What is the faulty action valve closed? | heart murmur |
| When a patient feel heart pain | due to an inadequate blood flow t the heart |
| What is a MI | Myocardial infarct and occurs when the mycardial tissue suffer death to the area because of insufficient blood flow |
| What is the difference between Agonal and Assystole on an EKG | Asystole is flat line, while Agonal is less than 20 beats per min |
| How do you calculate the heart rate? on a ekg strip | Counting the complete complexes in 3, or 6 sec and multiply by 20 or 10 |
| Electrocardiogram | is the recording or tracing of the EKG |
| What is the Cardiac cycle? | is the beginning of the beat until the beginning of the next beat. |
| How many leads are on EKG? | 10 are use 12 Lead EKG tracing |
| What does the T wave | relaxation of the ventricles |
| What is one major cause of Heart failure? | High Blood Pressure |
| QRST Complex represents | one entire cardiac cycle |
| What does the Apex of the heart shape liked? | pointed at the bottom of the heart |
| Where does the Apex lies | On the Diaphragm |
| Where does the Pulmonary veins goes too? | To the Left Atrium |
| What encloses the Heart | Pericardial Sac |
| What is Repolarization | is the relaxation phase" the process of recharging depolarized cells back to their "Ready" (Polarized) state" |
| What is Depolarization | is Contraction Phase |
| Which Chamber is the largest | Left Ventricle |
| Why is the left Ventricle largest chamber? | because it has a job to pump the blood out of the chamber by contracting |
| When the heart chambers empties during what Phase? | Systolic Phase (Contraction) |
| What are the Major cause Atherosclerosis? | Build up of fat deposits on the walls of the Arteries |
| Where does the aVF lead goes? | Left Leg |
| What is Angina ? | Is heart pain from lack of circulation to coronary arteries |
| Why does the heart rate go down to 40-60 beat per Minute? | the impulse is usually generated in the Av Node |
| Diastolic Phase | The Bottom number in the Blood Pressure |
| What does each small square represents? | .04 per second |
| Tricuspid Valve | Located between the right atrium and left Ventricle. As the name it has three cusps |
| Mitral Valve | Located between the left atrium and the left ventricle. It has two cusps |
| The Conduction System of the Heart | 1. Sinoatrail (SA)node 2. Artrioventricular (AV) Node 3. Atrioventricula (AV) 4.Right&Left Bundle Branches 5. Purkinje fiber |
| Endocardium | inner layer of the heart |
| Myocardium | Muscular layer of the heart |
| Epicardium | is the outer layer of the Heart |
| Pericardium | is the outer sac surrounding the heart from the rest of the chest cavity |
| Electrocardiograph | is the instrument used for recording the heart activity |
| P wave | Atrial contraction |
| Another name for Leads aVF, aVL, aVR | Augmented |