Patient on post operative day 3 started becoming agitated, irritable and had Shortness of breath. DX?

1 Patient on post operative day 3 started becoming agitated, irritable and had Shortness of breath. DX?

Myocardial infarction

Pulmonary embolism

Pneumonia

Pneumothorax

2 Which of the following is the initial diagnostic test that should be used in a hemodynamically stable male patient who has a high clinical probability of pulmonary embolism?

D-dimer assay

Bilateral lower extremity venous duplex

CT pulmonary angiography

Ventilation perfusion scan

3 The most appropriate therapy for pulmonary embolism in a patient who suffered three broken ribs, a fractured pelvis requiring operative intervention, and a subdural hematoma in a motor vehicle accident is which of the following:

Unfractionated heparin

Low-molecular-weight heparin

Inferior vena cava filter

Dabigatran

For last one plz give explanation thanks !

Monisha Manu
Sundas Asghar
Sumit Sehrawat
Linda Dutta
DrDevinaa Goel Singla
Bekkier Daniel