help asap In 2000, a fire at the Philips microchip plant affected phone manufacturers Nokia And Ericsson. The companies reacted in different ways, and ultimately, Ericsson did not do well, quitting the mobile phone business and allowing Nokia to win over the European market. While Ericsson had tied up all of its key components in a single source and planned to wait out the problem with the fire, Nokia worked to snatch up spare chips from other plants and suppliers, as well as re-engineered some of their phones to adapt to different chips from new suppliers. It's not hard to imagine what happened after that. Nokia kept trucking along, while Ericsson suffered from months of lost production and sales, allowing the market to be dominated by Nokia. This incident and fallout is a classic lesson in supply chain risk management

11 When examining a patient's carotid pulse, why should we not palpate both carotids at once? Is it because it might block the blood supply to the brain?

12 How can I differentiate between jugular and arterial pulsation in the neck practically?

13 Can you please help me with this: 'Thrusting due to mitral or aortic regurgitation. Heaving due to aortic stenosis and systemic hypertension. There is often confusion about the terms thrusting and heaving'. Another book I read considers aortic stenosis and hypertension for thrusting and mitral/aortic regurgitation for heaving. Who should I go with? Thank you.

14 Where is the best place on the precordium to auscultate a split-second heart sound?

15 What is the mechanism by which murmurs of mitral valve prolapse (MVP) and hypertrophic cardiomyopathy (HC) are accentuated by standing or the Valsalva manoeuvre?

16 What is the correct procedure for a fluoroscopy and why is this essential for the insertion of cardiac catheter, pacemaker and prosthetic valve?

17 What is the role of amiodarone in the acute management of asystole or pulseless electrical activity (PEA)?

18 1. Is there any contraindication to the use of microwaves or mobile phones in patients with pacemakers? 2. What, if any, appliances should be avoided in a patient with a pacemaker?

19 1. What is tachy-brady arrhythmia in the sick sinus syndrome? 2. How can it be managed?

20 Practically, how can we differentiate between a second-degree atrioventricular (AV) block Mobitz I and Mobitz II? What is the meaning of first-degree block? What is the difference between heart asystole, heart arrest and third-degree AV block?