A nurse is caring for a client who has a new diagnosis of atrial fibrillation. Despite medication therapy aimed at correcting the dysrhythmia, the patient has consistently remained in atrial fibrillation for several days. Which of the following interventions would the nurse expect to be ordered for this client?

A. The soles of the feet are not typically assessed for cyanosis because they are not a reliable indicator of central cyanosis. Cyanosis is best evaluated in areas where mucous membranes are visible.
B. Similar to the soles of the feet, the palms of the hands are not a reliable indicator of central cyanosis. Cyanosis is not typically visible on the palms unless there are severe systemic circulation issues.
C. The oral mucosa (inside the mouth) is a reliable area to assess for central cyanosis. The nurse can inspect the lips, tongue, and buccal mucosa for a bluish discoloration, which indicates decreased arterial oxygen saturation.
D. The nail beds are also a reliable indicator of central cyanosis. The nurse can assess the color of the nail beds and look for bluish discoloration, which can be more apparent in darker-skinned individuals compared to the lips and oral mucosa.

A. MS is a chronic autoimmune disorder affecting the central nervous system (CNS), specifically the brain and spinal cord. It typically presents with a wide range of neurological symptoms such as blurred vision, sensory disturbances, weakness, and difficulties with coordination and balance. However, MS does not typically present with a sudden onset of ascending numbness and weakness starting in the feet and moving upwards.
B. GBS is an acute autoimmune disorder where the immune system attacks the peripheral nervous system. It often starts with numbness, tingling, and weakness in the feet and legs, which then

progresses symmetrically upwards to involve the upper limbs and potentially affect respiratory muscles. This ascending pattern of weakness is characteristic of GBS, making it the most likely diagnosis in this scenario.
C. Myasthenia gravis is a chronic autoimmune disorder affecting neuromuscular junctions, leading to muscle weakness and fatigue, especially with repetitive use. It typically presents with fluctuating muscle weakness that worsens with activity and improves with rest. The pattern of ascending numbness and weakness seen in the scenario does not align with the typical presentation of myasthenia gravis.
D. Parkinson's disease is a progressive neurological disorder primarily affecting movement. It presents with symptoms such as tremors, bradykinesia (slowness of movement), rigidity, and postural instability. It does not typically cause numbness or a symmetrical ascending pattern of weakness as described in the scenario.