A correctional nurse is caring for a client who was recently injured in the facility. The client is complaining of pain but is not due to receive any more pain medication for a while. Which of the following interventions could the nurse include to achieve the goal of pain relief?

Choice A Reason:
Increased exposure increases the risk of developing the disease. This statement describes a dose-response relationship, which is another important criterion for establishing causation. It indicates that as the level of exposure to a potential cause increases, the risk of developing the disease also increases. However, this does not specifically address the temporal sequence required to establish causation.

Choice B Reason:
The exposure must come before the disease develops. This is the correct definition of a temporal relationship in epidemiological studies. For causation to be established, it is essential that the exposure to the potential cause occurs before the onset of the disease. This temporal sequence is crucial because it helps to rule out reverse causation, where the disease might influence the exposure rather than the other way around.

Choice C Reason:
When the exposure is decreased or eliminated, the risk of disease declines or is eliminated. This statement describes the concept of reversibility, which is another criterion for causation. It suggests that reducing or removing the exposure should lead to a decrease in the incidence of the disease. While important, it does not specifically define the temporal relationship.

Choice D Reason:
A relationship is biologically plausible, and it makes sense. This statement refers to biological plausibility, which means that the observed association between exposure and disease is consistent with existing biological or medical knowledge. While biological plausibility supports causation, it does not define the temporal sequence necessary to establish a causal relationship.

Choice A: Make a Report to Child Protective Services (CPS)
This is the correct action for the nurse to take. Nurses are mandated reporters, meaning they are legally required to report any suspected cases of child abuse or neglect to the appropriate authorities. Child Protective Services (CPS) is the agency responsible for investigating reports of child abuse and ensuring the safety and well-being of children. Reporting to CPS ensures that the case is handled by professionals trained to investigate and intervene in such situations.

Choice B: Call the Police and Report the Suspected Abuse
While calling the police may seem like a logical step, it is not the primary action a nurse should take in this situation. The police may become involved later in the process, especially if there is an immediate threat to the child's safety. However, the initial report should be made to CPS, as they are the designated agency for handling child abuse cases.

Choice C: Call the Child's Guardian to Have the Child's Pediatrician Confirm the Suspected Abuse
This action is not appropriate because it could potentially place the child in further danger. If the guardian is the abuser, notifying them could lead to retaliation against the child or attempts to cover up the abuse. Additionally, it is not the role of the pediatrician to confirm abuse; this is the responsibility of CPS and law enforcement.

Choice D: Alert the School Principal of the Situation
While it is important to keep school officials informed, the nurse's primary responsibility is to report the suspected abuse to CPS. The school principal can be informed after the report has been made, but the immediate priority is to ensure the child's safety by contacting the appropriate authorities.