Study guides, Class notes & Summaries

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...

Without possession of a release form, PHI may be shared with a patient's ______ without violating HIPPA regulations A. Children B. Husband/Wife C. Doctor D. Verbally reported power of a attorney - ANSWER C. Doctor When an ECG is properly grounded it reduces the risk of? A. Electrical shock B. Paper malfunction C. Faulty results D. 60 cycle electrical interference - ANSWER D. 60 cycle electrical interference which ecg waveform represents ventricular repolarization? A. R...

A Nursing home calls a cardiology office requesting that a trantelephonic pacemaker check be conducted on a new admission to the facility. The Tech finds no medicla record indicating that the patient has been followed by the practice. what is the tech's next step - ANSWER Contact the PCP's office to obtain a prescription for the transtelephonic monitoring. When is it appropriate to contact a patients family member - ANSWER Only if the patient has signed a HIPPA form giving permission In ...

CRAT TEST PREP (Anatomy)Correct 100% The heart receives its blood supply through the two main coronary arteries its branches - ANSWER Left Coronary Artery Right Coronary Artery The left coronary artery begins as a main stem called the - ANSWER Left Main Coronary Artery (LMCA) • varies in length • Divides into 2 major branches ~ Left anterior descending artery (LAD) ~ Circumflex Artery (CX) Left anterior descending artery (LAD) - ANSWER Location: Front anterior surface of the...