Final answer:
The A wave is typically absent on the CVP tracing in a patient with atrial fibrillation.
Step-by-step explanation:
In a patient with atrial fibrillation, the A wave is typically absent on the central venous pressure (CVP) tracing. The A wave represents atrial depolarization and contraction, which is disrupted in atrial fibrillation. Atrial fibrillation is a cardiac arrhythmia characterized by irregular and rapid electrical activity in the atria, resulting in the absence of coordinated atrial contraction and a disorganized electrical pattern prior to the QRS complex.