A nurse is obtaining a client’s manual blood pressure and is having difficulty auscultating sounds.

Which of the following actions should the nurse take?

Choice A reason:

Administer epinephrine subcutaneously. This is not the necessary action to be taken. Epinephrine is used to treat severe allergic reactions (anaphylaxis). However, in this case, the client is experiencing a febrile non-haemolytic transfusion reaction, not an allergic reaction.

Choice B reason:

Place the blood bag in a biohazard bag before discarding. This is not the necessary action to be taken by the nurse. Proper disposal of biohazardous materials is essential, but in this situation, the nurse's priority is to address the client's condition and not the disposal of the blood bag

Choice C reason:

Documentation of the transfusion reaction is crucial for the client's medical history and for future reference. The nurse should record the client's signs and symptoms, the actions taken, and any other relevant information related to the reaction.

Choice D reason

Infuse 500 ml lactated Ringer's IV. This is not necessary action to be taken by the nurse because there is no indication for infusing lactated Ringer's solution in response to the transfusion reaction described. Treatment for febrile non-haemolytic transfusion reactions generally involves stopping the transfusion, administering antipyretics (like acetaminophen) if necessary, and providing supportive care as needed.

The correct answer is B.

Previous violent behavior. According to the web search results, this is the best predictor of future violence among the given risk factors.

Other risk factors include past history of aggression, poor impulse control, and violence. Comorbidity that leads to acts of violence (psychotic delusions, command hallucinations, violent angry reactions with cognitive disorders).

Choice A is wrong because a history of being in prison is not a direct cause of violence, but rather a possible consequence of it.

Choice C is wrong because male gender is not a sufficient factor to predict violence, as there are many other variables involved. Choice D is wrong because experiencing delusions is not necessarily associated with violence, unless they are of a paranoid or persecutory nature.

Normal ranges for violence risk assessment are not standardized, but some tools that can be used include the Historical Clinical Risk Management-20 (HCR-20), the Violence Risk Appraisal Guide (VRAG), and the Psychopathy Checklist-Revised (PCL-R). These tools use different scales and criteria to evaluate the likelihood of violent behavior in individuals.