MRCOG Part 1- Biophysics – SBA

1. A 68-year-old woman developed left-sided chest pain a day after she has had total abdominal hysterectomy and bilateral-salpingo-oophorectomy. A 12-lead electrocardiogram is performed. In the case of hypocalcaemia, what electrocardiography (ECG) changes typically occur?

2. The radiofrequency current used in electrosurgerical procedures cause intracellular conversion of electromagnetic energy to mechanical and thereafter thermal energy. Causing different effect with different temperature. Match the effects given below with best temperature causing Carbonisation (black coagulation)

3. A 66-year-old woman developed left-sided chest pain a day after she has had vaginal hysterectomy for prolapse. A 12-lead electrocardiogram is performed and is suggestive of an anterior ST elevation myocardial infarction. Which of the following leads would be most likely to show ST elevation in this patient?

4. What is the frequency of a transabdominal ultrasound scan?

5. The radiofrequency current used in electrosurgerical procedures cause intracellular conversion of electromagnetic energy to mechanical and thereafter thermal energy. Causing different effect with different temperature. Match the effects given below with best temperature causing Cell death within 6 minutes

6. In a electrosurgical generators there are two types of waveforms. The type of waveforms will decide for mode to be cut or coagulation. In the picture given below which is cut and which is coagulationg?

7. Which of the following is the normal axis of the heart?

8. All of the following are true about Ultrasound except?

9. With regard to ultrasound with colour Doppler, how can the red coloured flow pattern be described?

10. What would be the frequency of the electric current used in electrosurgery?