A patient admitted in ICU. Blood transfusion is going on. Suddenly, an adverse reaction occurred. What is the first action of the nurse?

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E6 Nursing Fundamentals Potter Perry 12e Part 5 pp. 76-78, 77-79
E6 Nursing Fundamentals Taylor p. 830-832
Practise the full JIPMER Nursing Officer - 2020
Attempt every question from this paper in a timed mock, then review the full solution for each one.