TABLE 1.

Summary of pressures encountered at catheterization during initial diagnostic workup

	Systolic/end-diastolic	Mean	Upper limit of normal
Right atrium		7	5
Right ventricle	36/12		15–25/0–8
Pulmonary artery	36/13		15–25/8–15
Pulmonary capillary wedge		23	6–12
Left ventricle	79/17		120/8