Uroflometry Flashcards
1
Q
volume voided
A
ideally above 150-200 below 500
2
Q
three types flow machine
A
weight transducer /load cell - rate of change of weight, volume = weight
spinning disk - flow rate is proportional to current consumption, volume is flow rate integrated over time
capicitance
3
Q
capicitance
A
bimetallic strip
electrical capicitance of a dipstick mounted in the chamber changes as the height of the column of urine in a container of standard size
least expensive
no mechnical parts
4
Q
squares on uroflow
A
each square is volume of 50mls
Paper speed of 0.25 cm/s is the standard, as it allows an accurate and systematic curve construction
5
Q
artefacts on flow
A
cough valsalva strain wagging cruising manual urethral occlusion knocking
