Oh, I dunno, maybe to evaluate and treat the things they do diagnose? To make a reasonable effort to assess patient complaints and provide a plan of care they hope the patient is willing to follow, like, for instance, take anti-hypertensive medications.

By your reasoning, we should find the T.V. weatherman responsible for ruining your garden party. After all, you paid your cable bill.

What would’ve predispose Ritter to having a dissection? Hypertension!! He certainly was not Marfanoid in appearance and certainly didn’t have the Trisomy features and thus the most logical, and incidentally the #1, cause of a dissection is UNCONTROLLED HYPERTENSION. Perhaps undiagnosed hypertension? But more likely methinks the scenario is that Jack Tripper had been noncompliant with antihypertensive medication. He was overweight so I’m sure he has longstanding known high blood pressure. My point is that if you know you have longstanding hypertension and are noncompliant with medication and you die of an aortic dissection, whose flippin’ fault ultimately is that??

Furthermore certain types of aortic dissection are treated nonoperable and treated medically with, guess what, ANTIHYPERTENSIVE MEDICATIONS! What type of dissection did Jack Tripper have? Ascending? Descending? If he has the inoperable type then is there really grounds for a legitimate suit? Sure there was a misdiagnosis but even if it was diagnosed, would the outcome have been different? Maybe he gets to live an extra couple of months but that thing was going to blow anyway.