The seasoned nurse is instructing the new graduate on information obtained from central venous pressure and pulmonary artery pressure.
Which statement, made by the seasoned nurse, reflects the most pertinent information regarding circulation?

a) "Pulmonary artery pressure and pulmonary capillary pressure is assessed by an inserted catheter."
b) "Central venous pressure reflects the pressure in the right atrium or venae cavae."
c) "The trend in central venous pressure is more helpful than isolated readings."
d) "A pulmonary artery pressure provides information about pressure on the left side of the heart."