[LO 0219] FEBRUARY 2019 Sub. Code: 1510
B.Sc. CARDIAC TECHNOLOGY
FIRST YEAR
PAPER III MEDICAL ELECTRONICS, BIOPHYSICS AND COMPUTER
USAGE RELEVANT TO CARDIAC TECHNOLOGY BASIC
ELECTROCARDIOGRAPHY
Q.P. Code: 801510
Time: Three Hours Maximum: 100 Marks
Answer all questions
I. Elaborate on: x 10 30)
1. Explain in detail the direct and indirect method of blood pressure monitoring.
2. Discuss on 12 lead ECG system.
3. Explain on the radiation dose reduction strategies for minimizing radiation
exposure in cath lab.
II. Write notes on: x 5 40)
1. Write a note on synchronization in defibrillator.
2. Write a short note on impedance plethysmography.
3. Write note on monophasic and biphasic defibrillator and discuss its advantages.
4. What are the effects of radiation exposure?
5. What are ionic currents and discuss on the phases of cardiac action potential?
6. Augmented limb leads.
7. Working principle of pulse oximeter.
8. Biological effects of radiation
III. Short answers on: (10 x 3 30)
1. What is the frequency used in ultrasound imaging?
2. What is radiation and mention its types?
3. What are the basic principles of radiation safety?
4. Calculate the heart rate if there are four large squares in an R-R interval.
5. Curie temperature.
6. Einthoven triangle.
7. Positioning of defibrillator paddles during defibrillation.
8. What is mean arterial pressure?
9. Transducer.
10. What are unipolar leads?