The test result information you provide, if valid, effectively rules out the common causes of such acute symptoms, such as classical pulmonary embolic disease
and coronary artery disease
with acute heart
failure and raises the possibility of uncommon disorders.
One caveat is that in a circumstance such as this, tests that may ultimately provide a diagnosis (for example, heart catheterization, CT scanning of the lungs, echocardiograms) may be normal or marginally abnormal at the outset.