ultrasound Flashcards
1
Q
how do ultrasounds work?
A
- transmits high frequency sound waves through tissues
- sound waves are emitted by the transducer
- sudden changes in tissue density or at a tissue interface will cause echos which are detected by the transducer
- the delay and intensity of these echos can be used to construct and image
2
Q
what colour are fluid and air on an ultrasound?
A
black
3
Q
what colour is bone on an ultrasound?
A
bright
4
Q
what colour are muscles and viscera on an ultrasound?
A
mid grey
5
Q
how is orientation used on an ultrasound?
A
- orientation marker indicates which way the probe should be held
- convention is to point the marker on the probe to the right side of the patient
- during cardiac ultrasound it is common to orientate the marker on the probe to the left of the patient
6
Q
what is the POCUS (point of care ultrasound) used for?
A
used to access for pathologies:
- pulmonary oedema
- pleural effusion
- pneumothorax
7
Q
what does BA stand for?
A
base of the auxilla
8
Q
what does LPMA stand for?
A
lateral borer pectoralis major
9
Q
what does LLD stand for?
A
lateral border latissimus dorsi
10
Q
what does 5IS stand for?
A
5th intercostal space
