EKG practice test

EKG Practice Test Questions And Answers 2023 The fibrous sac covering the heart, which is in contact with the pleura is the : Ans- pericardium The heart ventricle with the thicker myocardium.... Ans- left The pulmonic and aortic valves open during systole or diastole? Ans- systole The large blood vessel that returns unoxygenated blood from the head and neck to the right atrium is called... Ans- superior vena cava The coronary sinus, which opens into the right atrium, allows return from which layer of the heart? Ansmyocardium The saw tooth pattern is indicative of which rhythm? Ans- atrial flutter The mitral valve is located between the... Ans- left atrium and left ventricle This part of the conduction system of the heart is located at the superior portion of the inter ventricular septum and has the ability to function as a pacemaker with an intrinsic firing rate of 40-60 beats per minute. Ans- bundle of his This represent the time it take for electrical impulses to travel from the atria to the AV node, bundle of his, bundle branches and to the purkinje fibers. Ans- QT interval Which is an indication of stress testing? A. angina at rest B. acute myocardial infarction C. severe hypertension D. evaluation of chest pain in a patient with normal baseline EKG. Ans- Evaluation of chest pain in a patient with normal baseline EKG This agency requires basic practices to protest any employee in the working place from different types of hazards. Ans- OSHA This medication is usually given to all patients with angina pectoris, causes vasodilation and protects the tissues from hypoxia. Ans- oxygen what are the functions of the musculoskeletal system? Ans- support and movement Wet floors, heavy lifting can cause falling, sprains and strain, these are all examples of which hazard? Ans- physical What is a noninvasive diagnostic procedure to determine indirectly the presence of severity of coronary artery disease and the heart muscle lack of blood supply? Ans- stress test A stress test is performed by... Ans- exercise and resting This type of testing is done by administering medication that cause increase in HR while hooked to an EKG monitor. Ans- pharmacological stress testing While the 12-lead EKG is recorded usually every _____ seconds during exercise and every _______in the recovery period post exercise. Ans- 90 sec/1min What is the formula to calculate the target HR when performing an EKG test? Ans- 220- person's age When are pharmacological stress test advisable? Ans- for patients with physical limitations or elderly When is a pharmacologic stress test concluded? Ans- when 85% of the THR is acheived The QRS of waves of premature complexes are usually ______ seconds or less Ans- 10 Examples of intentional torts are: Ans- assault, battery, false imprisonment, and invasion of privacy What year was the patients bill of rights created? Ans- 1973 These are instructions given by individuals specifying what actions should be taken for their health in the event that they are no longer capable to make the proper decisions due to an illness or incapacitating condition Ans- advance directives The most appropriate initial w/s for defibrillating ventricular fibrillation in an adult is... Ans- 360 J The most apprpiate treatment of uncomplicated acute myocardial infarction is: Ans- IV NS, MONITOR, 02 the coronary arteries receive oxygenated blood from the Ans- aorta In the prehospital field we administer IV fluid to a cardiac patients in order to: Ans- provide a lifeline The chambers of the heart the are thin walled and pump against low pressure are the: Ans- atria The sinoatrial node is located in the: Ans- right atrium The av node is located in the Ans- atrioventricular septum the intrinsic firing rate of the AV node is _______________ per minute Ans- 40-60 the intrinsic firing rate of the sa node in adult is _______________per minute Ans- 60-100 The PR interval should normally be _______ seconds or smaller Ans- .20 The QRS interval should normally be _____________ seconds or smaller Ans- .12 What are the upper chambers of the heart called? Ans- atria A sinus rhythm with cyclic variation caused by alterations in the respiratory patter is: Ans- sinus dysrhythmia A sudden onset of tachycardia with a stimulus that arises above the AV node refers to a Anssupraventricular dysrhytmia The QRS complex is produced when... Ans- ventricles depolarize and contract Most atrial fibrillation waves are not followed by a QRS complex because the.... Ans- AV junction is unable to conduct all the excitations impulses When the EKG shows no relationship between the P wave and the QRS complex you should suspect... Ans- third degree block signs and symptoms that may be observed in a patient with necrotic heart tissue could be... Ans- - dysrhythmias -congestive heart failure -cardiogenic shock Wenckeback differs from the complete heart block in that CHB has a... Ans- regular R-R interval The T-wave in the EKG strips represents... Ans- rest period The coronary sinus has how many arteries? Ans- 2 PEA or pulseless electrical activity may be manifested by a... Ans- normal EKG and absent pulse The function of the chordae tendinae and papillary muscles is to... Ans- prevents back flow of blood into atrium Lead 2 is most commonly used in prehospital area because... Ans- it illustrates good P-waves The ability of certain cardiac cells to initiate excitation impulses spontaneously is called: Ansautomaticity If a known coronary bypass patient suffers a cardiac arrest, the health care provider should... Ansprovide CPR in the same manner as for any other patient The expected rate of a junctional escape rhythm is _________bpm Ans- 40-60 when interpreting dysrhythmias the most import an key is... Ans- patients clinical appearance In order to obtain a 2-lead EKG strip you should apply _____leads Ans- 3 The uppermost portion of the heart is known as the ________ Ans- base The most common causes of poor EKG tracings are Ans- patient movement and loose leads or electrodes the primary treatment for multifoval PVC's is Ans- cardioversion The innermost lining of the heart is contiguous wuthe the visceral pericardium and is called the... Ansendocardium the right and left atria are separate anatomically by the... Ans- interatrial septum the right atrium receives blood from the myocardium via the.... Ans- great cardiac vein Which are 2 examples of the AV valves? Ans- tricuspid and bicuspid The amount of blood ejected by the heart in one cardiac contraction is known as... Ans- stoke volume The pressure in the ventricle at the end of diastole is referred to as... Ans- afterload the parasympathetic nervous system is mediated by the tenth cranial nerve which runs from the brain stem to the rectum. this nerve is called? Ans- vagus An EKG strip illustrates a regular rhythm, a HW of 70 and QRS complies that are within normal limits. P waves are variable in configuration across the strip. This rhythm is identified as a... Ans- wandering atrial pacemaker a progressing PR interval until such time as that a QRs is dropped is considered to be... Ans- second degree AV block, mobitz type 1 an abnormality in conduction through the ventricles may be identified on the EKG tracing by an... Answide and bizarre QRS comple