Рет қаралды 513
A 67-year-old patient is to undergo coronary artery surgery on cardiopulmonary bypass (CPB).
a) What dose of heparin is used to achieve full anticoagulation for CPB and how is it given? (2 marks)
b) Which laboratory and ‘point-of-care’ tests determine the effectiveness of heparin anticoagulation in CPB patients? Give the advantages and/or disadvantages of each test. (10 marks)
c) What are the causes of inadequate anticoagulation in a patient whom it is believed has already received heparin? (5 marks)
d) Describe the possible adverse reactions to protamine. (3 marks)
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