Pulmonary embolus Flashcards
1
Q
syndrome that can cause PE
A
antiphospholipid
2
Q
why is there resp alkalosis in PE
A
hyperventilation –> + CO2 output
3
Q
when can an embolic stroke form in PE
A
ventricular septal defect
4
Q
why can PE lead to HF
A
hptn 2ry to clot
5
Q
next step if Well’s score >4 (or if +ve D dimer)
A
CTPA + apixaban
6
Q
next step if Well’s score <4
A
D-dimer
7
Q
when is a V/Q scan used instead of CTPA
A
- renal impairment
- pregnancy
8
Q
fleischner sign on CXR
A
enlarged PA
9
Q
hampton’s sign on CXR
A
peripheral wedge shaped opacity
10
Q
westmark’s sign on CXR
A
regional oligaemia
11
Q
ECG changes in massive PE (think of right heart strain)
A
- right axis deviation
- RBBB
- non-specific ST/T wave changes
12
Q
lead III changes in ECG
A
- deep S wave changes
- pathological Q waves
- inverted T waves
13
Q
initial Tx
A
DOAC
14
Q
when is LMWH used in initial tx
A
- DOAC contraindicated
- antiphospholipid syndrome
15
Q
when should u commence initial tx
A
immediately (dont await results)
