A nurse is assessing a client's vital signs. The oxygen saturation is 85%. What intervention should the nurse perform first?

Choice A reason: Send the client back to surgery is not the nurse's next action, because it is premature and inappropriate. Sending the client back to surgery requires a medical order and a clear indication of the need for surgical intervention. The nurse cannot make this decision without first assessing the wound and contacting the provider.

Choice B reason: Call the provider immediately is not the nurse's next action, because it is not the most urgent and relevant. Calling the provider immediately is an important action, but it should be done after assessing the wound and gathering the necessary data. The nurse should be able to report the findings of the wound assessment, such as the size, shape, color, amount, and type of drainage, as well as the vital signs, pain level, and mental status of the client.

Choice C reason: Assess the wound for signs of dehiscence is the nurse's next action, because it is the most urgent and relevant. Assessing the wound for signs of dehiscence is a priority action, because it can identify the cause and severity of the problem. Dehiscence is a complication that occurs when the surgical incision splits open or separates, which can cause increased drainage, pain, and infection. Dehiscence can be caused by factors such as infection, poor wound healing, excessive strain, or trauma. Dehiscence can be detected by inspecting the wound for gaps, edges, or protrusions.

Choice D reason: Prepare to culture the wound is not the nurse's next action, because it is not the most urgent and relevant. Preparing to culture the wound is a possible action, but it should be done after assessing the wound and contacting the provider. Culturing the wound is a procedure that involves collecting a sample of the wound drainage and sending it to the laboratory for analysis, which can help identify the type and source of infection. Culturing the wound requires a medical order and a sterile technique.

Choice A reason: Creating a susceptible host is not a way to break the chain of infection, but rather a way to facilitate it. A susceptible host is someone who is vulnerable to infection due to factors such as age, immunocompromised status, or chronic diseases.

Choice B reason: Maintaining the integrity of a portal of entry is a way to break the chain of infection, because it prevents the entry of microorganisms into the body. A portal of entry is any place where microorganisms can enter the body, such as the skin, mucous membranes, or respiratory tract. By reducing skin breakdown, the nurse is protecting the skin from becoming a portal of entry for infection.

Choice C reason: Creating a reservoir to decrease the risk of infection is a contradiction, because a reservoir is a place where microorganisms can multiply and survive, such as a human, animal, or environment. A reservoir increases the risk of infection, not decreases it.

Choice D reason: Sterilizing the area to reduce the reservoir risk is a way to break the chain of infection, but it is not related to reducing skin breakdown. Sterilizing the area means killing or removing all microorganisms from a surface or object, such as a surgical instrument or a wound dressing. This can reduce the reservoir risk, but it does not affect the integrity of the skin as a portal of entry.