Other - S and S + clin Flashcards
When is t2 preferred as an MRI tool 4
when seeing oedema, specifically tumours, stroke, infection and CSF abnormalities
what is MRI better for than ct
seeing soft tissue structures such as ligaments
what is ct good for 4
Acute bleeding
Bone fractures
Calcifications
Stroke (early changes)
why do we do non contrast ct first
because if bleed, contrast is contraindicated
what is ct
multiple x rays taken from different angles to repriduce 3d structures
what is MRI
magnetic resonance imaging, whereby an electric field is produced and electrons move out of their resting place. when they re-enter they give off energy whcih is interpeeted to determine their position and tehrefore the image they produce
rate on ecg how to find
300 divided by the number of large squares between r waves
whats next in ecg analysis after rate
rhythm is it regular or iregular
regular rate
irreggular rate
regular pattern
irregular pattern
how to determine cardiac axis
look lead 1 and avf
if pp = good
if pn = Lad or NORMAL, look at L2 if L2 negative then LAD
if np = RAD
if nn = extreme axis
whats after cardiac axis commentary
p wave - sinus rhythm
pr intervals regular
whats after p wave morphology
q wave - width and height
whats after q wave morphology
ST elevation, depression or flat
whats after ST morphology
T wave depression or normal
what does AF look like on an ECG
no p wave
irregular irregular rhythm
what is pronator drift an example of
upper motor neuron lesion
lead pipe rigidity
uniform resistance throughout the movement
cogwheeling rigidity
jerky rigidity due to superimposed tremours
