The nurse is performing the safety checks prior to initiating a packed red blood cell transfusion for a patient whose blood type is A positive. The nurse observes the unit is AB negative. What is the nurse's best first action?

A. Hypoxia is common after surgery due to the effects of anesthesia and the client being in a supine position. A pulse oximetry reading of 88% indicates mild hypoxia. The first step in managing this is to encourage deep breathing or to have the patient use an incentive spirometer to improve ventilation and oxygenation. This is a non-invasive method that can help increase oxygen levels and prevent complications like atelectasis (lung collapse).

B. While opioid overdose can cause respiratory depression, there is no indication that the client is showing signs of opioid toxicity (e.g., unresponsiveness, slow/shallow breathing). The client is sleepy but easily arousable, suggesting that the sleepiness is related to the residual effects of anesthesia rather than opioid overdose. Administering naloxone is not indicated unless there are signs of severe respiratory depression or unresponsiveness, which is not the case here.

C. While postoperative hypothermia can occur, it is unlikely to cause oxygen saturation to drop to 88%. The priority action should be to improve the client's oxygenation first, as that is more immediately critical in this scenario.

D. The client's oxygen saturation of 88% is concerning, but it is manageable with initial interventions such as encouraging deep breathing. Calling a rapid response team would be appropriate if the patient's condition worsens or doesn't improve with initial interventions.

A. While age is a risk factor for colorectal cancer, the risk typically increases after age 50, not at 35. Most colorectal cancers are diagnosed in individuals over the age of 50, so age over 50 is a more significant risk factor.

B. Ulcerative colitis is a chronic inflammatory bowel disease that increases the risk of developing colorectal cancer, especially after long-term inflammation. The risk increases the longer someone has had ulcerative colitis, particularly if the disease affects a large portion of the colon.

C. A high fiber, low fat diet is actually protective against colorectal cancer. Diets rich in fiber and low in fat have been shown to reduce the risk of developing colorectal cancer by promoting bowel regularity and reducing inflammation in the colon.

D. While having a first-degree relative (parent, sibling, or child) with colorectal cancer is a significant risk factor, having a distant relative (e.g., cousin, aunt, uncle) with the disease does not carry the same increased risk. The genetic risk is more strongly associated with immediate family members.