CRAT Study guides, Class notes & Summaries

Cardiac Cycle - ANSWER mechanical events that occur to pump blood Diastole - ANSWER Ventricles Relax (Repolarize) and refills as Atria contracts Rapid Filling Phase - ANSWER Atria dumping blood to ventricles; pressure causes AV valves to open Diastasis - ANSWER slowing of blood flow; pressure of atria and ventricles equalize Atrial Kick - ANSWER Atria contracts/squeeze blood

The first negative deflection noted in the QRS complex - ANSWER Q wave Atrial fibrillation with a slow ventricular response has an - ANSWER ventricular rate less than 60 BPM Patient education in self-monitoring includes with of the following: - ANSWER - when to disconnect the device - what to do when the device emits an alert sound - what type of symptoms to record during the monitoring period

1. In addition to recording the ECG and preparing the report, an ECG technician must be able to: A. Determine if the tracing is accurate and recognize if interference causes abnormalities during the recording process. B. Evaluate tracing, recognize abnormal heart rhythms, and report abnormalities to the appropriate health care professionals. C. Maintain patient records and evaluate tracings. D. Perform ultrasounds on blood vessels and assist with angioplasty. - ANSWER A. Determine if the t...

1. When the technician is performing a 12 lead EKG, how many electrodes are used to record the 12 views of the heart? A. 8 B. 10 C. 12 D. 24 - ANSWER B.10 2. Segments and waveforms on an ECG would include all but which of the following? A. PR interval B. QRS complex C. TB wave D. QT interval - ANSWER C. TB wave 3. In measuring ventricular regularity if there is no R wave what could be measured instead? A. P wave B. Q wave C. The Q and S wave junction

Normal PRI interval - ANSWER 0.12-0.20 Normal QRS interval - ANSWER 0.11 or less What does the P wave represent? - ANSWER Atrial depolarization What does the QRS complex represent? - ANSWER Atrial repolarization and ventricular depolarization Q wave indicates what? - ANSWER Dead myocardial tissue. Always a negative deflection What is the natural pacemaker of the heart? - ANSWER SA node

A nursing home calls a cardiology office requesting that a transtelephonic pacemaker check be conducted on a new admission to the facility. The technician finds no medical record indicating that the patient has been followed by the practice. What is the technician's next step? - ANSWER Contact the primary care physician's office to obtain a prescription for transtelephonic monitoring What should be done when a patient reports that his or her demographic information is incorrect? - ANSWER Fo...

Transtelephonic Monitoring - ANSWER Transmitted over phone to a LICENSED practitioner to read (magnetic tape), Patients use up to 30 days Digital Monitoring - ANSWER Transmitted over a computer where report is verified by a licensed practitioner Telemedicine monitoring is usually used to evaluate_____________ - ANSWER Artificial Pacemaker Functioning Ambulatory Monitor - ANSWER Most common type is holter monitor (continuous or intermittent-only records when patient has symptoms. Used fo...

Chronotropic - ANSWER heart rate Inotropic - ANSWER force of myocardial contractility Dromotropic - ANSWER conduction velocity through the AV node Systole - ANSWER contraction of chamber, blood is being ejected. Pressure rises during systole. Diastole - ANSWER rest, relaxation of chamber, chamber is allowed to fill. Pressure falls during diastole. Stroke Volume - ANSWER the amount of blood left ventricle pumps in each beat. (mL/beat) Cardiac output- definition - ANSWER The amou...

Pericardium - ANSWER Outer protective double-layered sac surrounding the heart. Epicardium - ANSWER Thin outermost layer of the heart, contains coronary arteries. Myocardium - ANSWER Middle muscular layer of the heart, contains electrical system. Endocardium - ANSWER Inner most layer of the heart, lines chambers and valves. Blood flow through the heart - ANSWER Venules --> Veins --> Superior/Inferior VC --> Rt atria --> Tricuspid Valve --> Rt ventricle --> Pulmonary...

Which of the following has enhanced a patientʻs right to control her own health information, making it necessary to handle ECG tracings confidentially? A. OSHA B. HIPAA C. CDC D. AHA - ANSWER Electrical safety is maintained while performing an ECG by all the following except? A) removing the plug from the electrical by pulling it out by the prong connection. B) ensuring that the bed or examination table is not touching the wall or any electrical equipment. C) Checking the insula...