NHA EKG Exam Practice Test quiz with 100% correct answers

ST segment elevation is associated with myocardial injury during a stress test the patient begins to feel fatigue and the ekg shows v-tach the first thing you should do is notify the physician 00:05 01:33 if the QRS is too tall to fit on the ekg paper, change the gain control to 1/2 if the patient is alert and orientated, but the tech finds all waveforms to be negative, check the left and right arm limb leads decreased potassium levels cause what to be visible on an ekg? u waves the classic presentation of ischemia include ST segment depression and T wave inversion what is the easiest site to obtain a pulse on an infant because of its proximity to the surface of the skin? the brachial artery who should make repairs to the ekg machine? a biomedical tech if a physician orders a telemetry monitor to be worn at home, what statement would show the need for further instruction? "if a lead comes loose, i may reattach it myself" when preforming an ekg on a two-year old patient you should move the limb leads to the torso when preforming a posterior ekg, where should v8 be placed? on the left midscapular line what controls the height of the waveform on an ekg? sensitivity 00:02 01:33 peaked, hypacute, and broad based T waves and convex ST segments are classic findings of? myocardial ischemia what can be used up to two hours prior to a stress test because of its short half-life? tobacco products where should v5 be placed? v5 should be placed on the left anterior axillary line, horizontal to v4 atrial flutter is characterized by? flutter waves between QRS complexes, absence of of p waves, a irregularly regular rhythm, and a ventricular of 60 to 100/mm what is the most common flutter to ventricular response ratio? 2:1 what limb leads form lead III? the left leg and the left arm what do leads v1 and v2 look at the? interventicular rate what forms einthoven's triangle? leads I,II,III where is the red lead placed? on the lower left torso what do leads I, AVL, v5, and v6 observe? The lateral heart a tech if preforming an ekg in a hospital setting, the patient becomes unresponsive, stops breathing, and does not have a pulse. what would the first step? start chest compressions what is the most serious of the av blocks? a third-degree av block to prevent compromising patient privacy, what should the tech do with records? hand deliver them to the physician what is myocardial infraction? and what are some signs that a patient will experience? myocardial infraction is the lack of blood flow causing death to the tissue. the patient will experience heaviness on the chest, and become diaphoretic if a patient has a left leg, below the knee amputation, where should you place the right leg electrode? on the lower right thigh what do pathological Q waves in the tracing indicate? myocardial infraction what is the only difference between accelerated idioventricular rhythm and junctional rhythm is? the presence of a wide QRS in accelerated idioventricular rhythm what should the cet do if the patient if hyperventilating during a stress test? check the patients respiratory rate to confirm hyperventilation when preforming an ekg on a three year old patient, what should the tech tell the patient? tell the patient that the procedure wont hurt when wearing a holter monitor, when should the patient push the event button? when the feel discomfort