Correct Answer: C

Rationale: The nurse is monitoring vital signs and laboratory values for the patient recovering from a total knee replacement to ensure adequate circulation to the involved extremity. After a total knee replacement surgery, there is a risk of developing complications such as deep vein thrombosis (DVT) or impaired circulation to the surgical site. Monitoring vital signs and laboratory values allows the nurse to assess for any signs of compromised circulation, which could indicate the development of complications requiring immediate intervention. By closely monitoring these parameters, the nurse can ensure that the patient's recovery is progressing smoothly and without any major complications impacting the circulation to the involved extremity.

Correct Answer: A

Rationale: The theory of constructivism holds that knowledge acquisition is the ongoing assimilation and accommodation of new experiences and interpretations. This theory emphasizes that learners actively construct their knowledge and understanding of the world through their experiences and interactions. In constructivism, learning is seen as a process of building upon prior knowledge, rather than passively receiving information. Learners are encouraged to explore, question, and make sense of new information based on their existing beliefs and experiences. Therefore, the constructivist theory aligns with the idea that learning involves the assimilation and accommodation of new experiences and interpretations.

Correct Answer: D

Rationale: An ischemic stroke occurs when the blood supply to a part of the brain is obstructed, typically by a thrombus (a blood clot that forms in a blood vessel and remains attached to its place of origin) or an embolus (a blood clot that travels from a different part of the body and becomes lodged in a blood vessel in the brain). Another cause of ischemic stroke can be stenosis, which is the narrowing of a blood vessel, restricting blood flow to the brain. When the brain does not receive sufficient oxygen and nutrients due to the blockage, brain cells can be damaged or die, leading to a stroke. Ischemic strokes account for the majority of strokes and are essential to manage promptly to minimize brain damage and long-term disability.

Correct Answer: A

Rationale: A. Measuring abdominal girth every 4 to 8 hours is important to monitor for signs of fluid accumulation in the abdominal cavity, indicating potential fluid volume deficit.

Correct Answer: C

Rationale: The nurse is monitoring vital signs and laboratory values for the patient recovering from a total knee replacement to ensure adequate circulation to the involved extremity. After a total knee replacement surgery, there is a risk of developing complications such as deep vein thrombosis (DVT) or impaired circulation to the surgical site. Monitoring vital signs and laboratory values allows the nurse to assess for any signs of compromised circulation, which could indicate the development of complications requiring immediate intervention. By closely monitoring these parameters, the nurse can ensure that the patient's recovery is progressing smoothly and without any major complications impacting the circulation to the involved extremity.