5c2f7c6e_VERSE_REACTIONS_TO_TRANSFUSION__3
[0] Severe shaking chills [1] (rigors) can be controlled by the sedative effect of Benadryl or Demerol (25-50 mg given intramuscularly or intravenously [3] 
Note: Demerol may cause acute respiratory arrest. An opiate antagonist (Narcan) should be immediately available.
Chapter 7: ADVERSE REACTIONS TO TRANSFUSION
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