Anticoagulation for acute pulmonary embolus patients

i. Patients already adequately anticoagulated (orally or parenterally).
ii. Patients with contraindication to anticoagulation
iii. Patients deemed inappropriate anticoagulation candidates (e.g. hospice patients, cardiac arrest)
iv. Patients for whom further consultation is necessary prior to the possible initiation of anticoagulation.
v. Patients who are admitted from the ED with ED LOS less than 30 minutes from time of confirmed diagnosis.
vi. Patient refusal.
vii. Patients who do not complete their ED evaluation (Left before completion, Left AMA, etc.