Correct Answer: A

Rationale: The client is exhibiting signs and symptoms of respiratory alkalosis. When a person is experiencing respiratory alkalosis, there is an excessive loss of carbon dioxide (CO2) from the body, leading to elevated blood pH. The marked increase in the rate and depth of respirations as well as symptoms of anxiety, restlessness, and irritability are characteristic of respiratory alkalosis. This condition can be caused by hyperventilation, anxiety, or fever, which result in excessive elimination of CO2 from the body, leading to an imbalance in the acid-base status. Treatment for respiratory alkalosis involves addressing the underlying cause, such as providing reassurance to decrease anxiety or managing the breathing pattern to normalize CO2 levels.

Correct Answer: B

Rationale: Maternal anxiety can contribute to a prolonged latent phase during labor. Stress and anxiety can trigger the release of stress hormones such as adrenaline, which can interfere with the production of oxytocin, the hormone responsible for initiating contractions. This can result in irregular and ineffective contractions, leading to a prolonged latent phase. It is important for the nurse to assess the woman's anxiety levels and provide reassurance and support to help facilitate the progression of labor.

Correct Answer: A

Rationale: Administering intravenous fluids as ordered is the most appropriate nursing action for a postpartum client exhibiting signs of severe dehydration. Severe dehydration, as indicated by dry mucous membranes, decreased skin turgor, and oliguria, requires immediate intervention to restore fluid balance effectively. Intravenous fluids deliver fluids directly into the bloodstream, ensuring rapid rehydration and addressing the critical situation promptly. Offering oral rehydration solutions may not be sufficient to address severe dehydration, and providing education on fluid intake can be important for prevention but is not the immediate priority in this scenario. Notifying the healthcare provider is essential, but initiating intravenous fluids promptly is crucial in managing severe dehydration.

Correct Answer: B

Rationale: Avascular necrosis of the femoral head, also known as osteonecrosis, is a common complication associated with hip fractures in elderly patients. It occurs when there is a loss of blood supply to the femoral head following the fracture, leading to bone tissue death. This can result in pain, limitation of motion, and potentially the collapse of the femoral head, causing further complications. Timely diagnosis and appropriate management are crucial in order to prevent further degeneration of the hip joint. Other complications such as compartment syndrome, dislocation of the hip prosthesis, and Volkmann's contracture are not typically associated with hip fractures in elderly patients.

Correct Answer: C

Rationale: If the nurse observes an unusual odor emanating from the surgical site during surgery, it is important to inform the surgeon immediately and assess for signs of infection. Changes in odor can sometimes be an early sign of infection, which requires prompt attention and intervention. By communicating with the surgeon and conducting a thorough assessment, the nurse can help ensure the timely detection and management of any potential complications, such as infection, that may be affecting the patient's surgical outcome. Prompt action in response to unusual observations is crucial to maintaining patient safety and well-being during surgical procedures.