Pulmonary embolism Flashcards
define a PE
blood clot/ artery blockage in the lungs
what do PEs usually arise from?
DVTs in proximal leg or iliac veins
risk factors for a PE
- female
- pregnancy
- surgery
- malignancy
- oestrogen
- previous DVT
- immobility
- antiphospholipid antibiotics
- SLE
symptoms of a PE
- dyspnoea
- pleuritic chest pain
- haemoptysis
- syncope
- fever
- cyanosis
- tachycardia
- tachypnoea
investigations for PE
- bloods
- ABG
- ECG
- Doppler US
- CT pulmonary angiogram
specific blood investigations
FBC
U&Es
clotting
D-dimers
what may an ABG show in a PE
normal or hypoxic and low PaCO2
what may an ECG show in a PE
- right bundle branch block
- sinus tachycardia
gold standard diagnostic test for PE
CT pulmonary angiogram
which criteria is used for the probability of a PE?
Wells score
if wells score shows a low probability of a PE?
do d dimers
if wells score shows a high probability of a PE
CT pulmonary angiogram
prophylactic management of a PE
- TEDS (compression stockings)
- LMWHs
when should thrombolysis be consider in PE?
critically ill and massive PE
management of all PEs
start on warfarin