A client who had a knee replacement surgery and received a prescription for enoxaparin 30 mg subcutaneously every 12 hours for 10 days. The medication is available in 30 mg per 0.3 mL pre-filled syringes. How many mL should the practical nurse (PN) administer each day? (Enter numerical value only.)

A. Keep the client's television on with the volume low: This is incorrect because it does not address the client's safety or agitation. The television might also be a source of confusion or stimulation for the client.

B. Insert an indwelling urinary catheter to minimize interaction with the client: This is incorrect because it is an invasive and unnecessary procedure that increases the risk of infection and trauma. It also violates the client's dignity and autonomy.

C. Consult the provider regarding administering a mild sedative on a schedule: This is incorrect because it is not the first action to take. The nurse should first assess the client's condition and identify possible causes of disorientation and combativeness, such as pain, infection, medication side effects, or delirium. Sedatives should be used as a last resort and only with informed consent.

D. Move the client to a room near the nurses' station: This is correct because it allows for close observation and supervision of the client, which can prevent injury and promote safety. It also facilitates frequent interaction and reassurance from the staff, which can reduce anxiety and agitation.

A. Instructing a staff member to maintain a log of emergency care provided is not the first action that the nurse should take. This is an important task, but it can be done later, after ensuring the safety of the staff and children and providing immediate care to those who need it.

B. Applying cervical spine collars to children who have suspected neck trauma is not the first action that the nurse should take. This is a priority intervention, but it can only be done after surveying the scene for potential hazards and making sure that it is safe to approach and touch the children.

C. Notifying guardians of the emergency and injuries to their children is not the first action that the nurse should take. This is a necessary step, but it can be delegated to another staff member or done after providing initial care to the children.

D. Surveying the scene for potential hazards to staff and children is the correct answer. This is the first action that the nurse should take, according to the principles of emergency care. The nurse needs to assess the situation and ensure that there are no dangers such as fire, electricity, gas, or falling debris that could harm anyone at the scene. The nurse also needs to determine how many children are injured, how severe their injuries are, and what resources are available to help them.