URGENT

The secondary sector involves manufacturing and processing, i.e. the conversion of raw materials and components into goods. In this case, Vingroup has commercial interests in manufacturing. For example, one of its divisions, VinFast, manufactures cars and motorcycles. Vingroup hopes to encourage the development of the industrial and manufacturing sector in Vietnam, contributing to the industrialisation and modernisation of the country. In 2018, Vingroup started to make mobile phones. The phones are being manufactured at a large factory in Haiphong. The tertiary sector is related to the provision of services. In this case, Vingroup also has a range of commercial interests in the services. For example, VinPro is the group's retail operation dealing with the sale of electronics, smartphones, tablets, laptops and home appliances. Vingroup also has commercial interests in shopping malls, offices, apartments, and commercial centres, as well as urban areas. It also operates hotels, resorts, restaurants, golf courses, suites and villas, theme parks, amusement parks, conservation parks and family entertainment centres. Finally, the group controls a number of hospitals and educational institutions.

22 How often is Aldomet (alpha methyldopa) associated with autoimmune haemolytic anaemia or hepatitis? Is a normal person, with a positive Coombs' test owing to previous treatment with this drug, safe to donate blood?

23 What is the mechanism of priapism in sickle-cell anaemia?

24 Is sickle-cell disease associated with any of the glomerular disorders?

25 What is the acute chest syndrome?

26 Patients with thalassaemia intermedia have recurrent leg ulcers and recurrent infections. What is the mechanism of this?

27 What is the mechanism of iron absorption from iron polymaltose complex and carbonyl iron?

28 Iron overload in patients with thalassaemia major should be checked by measuring the serum ferritin and hepatic iron stores. How are the hepatic iron stores measured? By liver biopsy? And does not the measurement of serum ferritin suffice?

29 In the investigation for paroxysmal nocturnal haemoglobinuria (PNH), are the sucrose haemolysis test and Ham's acid serum test commonly done? What are the principles behind these tests?

30 Why isn't the blood of polycythaemia vera patients, after repeated phlebotomies, used for transfusion purposes? Although it is a premalignant condition, the red cells do not contain a nucleus and thus transfusion of only pure red blood cells (RBCs) would be a great benefit.

31 What investigations are necessary to exclude secondary polycythaemia?8 Haematological disease 68

32 What is the management plan in a patient with secondary polycythaemia presenting with transient ischaemic attacks (TIA)?