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EEG Formula Practice

2

QuestionAnswer
S = 7uV/mm, A (D or W) = 15mm V = 105uV
S = 7uV/mm, V = 20uV D (A or W) = 2.85mm
S = 2uV/mm, A (D or W) = 10uV V = 20uV
S = 3uV/mm, A (D or W) = 25mm V = 75uV
V = 9mm, PS = 30mm/sec (F = 55Hz) D = 300msec
V = 9mm, PS = 30mm/sec (D = 600msecs) F = 3.33Hz (or mm/sec)
PS = 15mm/sec, A (D or W) = 3mm F = 5 uV
PS = 60mm/sec, A (D or W) = 9mm F = 6.7 (7) uV
PS = 30mm/sec, A (D or W) = 15mm D = 2000msecs
PS = 60mm/sec, A (D or W) = 15mm D = 250msec
A (D or W) = 1mm, V = 15uV S = 15uV/mm
S = 15uV/mm, V = 50uV D (A or W)= 3.33mm
S = 300uV/mm, V = 50uV D (A or W) = 1.66mm
D (A or W) = 50mm, V = 100uV S = 2uV/mm
S = 30uV/mm, D (A or W) = 6mm V = 180uV
Polarity: -70, -30 -30, up
Polarity: -60, +20 -80, up
Amplitude: V (+45, +10)___ 35 uV / 5 uV(S)___= 7uV/mm
Adding Negatives: -7 -(-3) -10 (subtracting)
Adding Negatives: -7 + (-3) -10 (adding)
Adding Negatives: -7 - (-3) -4
10/20: 38 (Neo) @20% 7.6
10/20: 38 (Neo) @70% 22.8
10/20: 38 (Neo) @50% 15.2
10/20: 42 @20% 8.4
10/20: 42 @70% 25.2
10/20: 53 @50% 21.2
10/20: 44 @20% 8.8
10/20: 63 @70% 37.8
10/20: 56 @70% 33.6
10/20: 56 @50% 22.4
10/20: 58 @20% 11.6
10/20: 47 @20% 9.4
10/20: 58 @70% 34.8
10/20: 61 @20% 12.2
10/20: 61 @50% 24.4
10/20: 61 @70% 36.6
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: +45, +10 Down, 35 uV, 7 mm
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: -10, -60 Down, 50 uV, 10 mm
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: +10, -60 Down, 70 uV, 14 mm
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: +10, +60 Up, 50 uV, 10 mm
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: -10, +60 Up, 70 uV, 14 mm
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: +60, +60 None, 0 uV, 0 mm
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: +60, +90 Up, 30 uV, 6 mm
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: -15, +10 Up, 5 uV, 1 mm
Polarity, Sensitivity & Amplitude - Sensitivity = 5 uV/mm: +70, +30 Down, 40 uV, 8 mm
What is the voltage of a calibration signal for 7 uV/mm? 50 uV.
What is the deflection of a calibration signal for 7 uV/mm? 7.1 mm.
What happens to the output when you change the calibration sensitivity from 7 uV/mm to 10 uV/mm? Decreases.
If you change sensitivity from 10 uV/mm to 7 uV/mm, what does it do? Increases.
When you decrease the sensitivity to 20 uV/mm, what type of activity may become hard to clearly distinguish? Low amplitude.
A sensitivity of 5 uV/mm will produce a deflection of... 1 mm.
At 5 uV/mm, how how much voltage is required to obtain a 10 mm deflection? 50 uV.
How much voltage does it take for 10 mm of pen deflection at 10 uV/mm? 100 uV.
Calculate the amount of chloral hydrate you should give to a 5 year old weighing 20 lbs. 450 mg.
What is the maximum dosage of chloral hydrate allowable for a 150 lb adult? 3,409 mg.
Ohm's Law: R = E/I
Ohm's Law: I = E/R
Ohm's Law: E = IR
Power / Watts: P = E2/R
Power / Watts: P = I2R
Power / Watts P = EI
FRC - How much of the wave will be seen if the settings are LFF 5 Hz, HFF, 35 Hz sensitivity of 2 Hz? 55 %
FRC - How much of the wave will be seen if the settings are LFF 5 Hz, HFF, 35 Hz sensitivity of .5 Hz? 5 %
FRC - How much of the wave will be seen if the settings are LFF 5 Hz, HFF, 35 Hz sensitivity of 13 Hz? 100 %
FRC - How much of the wave will be seen if the settings are LFF 5 Hz, HFF, 35 Hz sensitivity of 10 Hz? 100 %
FRC - How much of the wave will be seen if the settings are LFF 5 Hz, HFF, 35 Hz sensitivity of 50 Hz? 60 %
FRC - How much of the wave will be seen if the settings are LFF 5 Hz, HFF, 35 Hz sensitivity of 2 Hz? 100 %
1,000,000th of a volt is a... Microvolt.
1,000th of a volt is a... Millivolt.
1,000 volts is a... Kilovolt.
Ohm's Law - 200 uV, 50 uΩ I = 4 uA.
Ohm's Law - 2 kΩ, 9 kA E = 18 kV
Ohm's Law - 7 mA, 84 mV R = 12 mΩ
An example of a compound: H2O.
What is considered a semiconductor? Gallium, Silicon.
If you have a current of 20 microamperes and a resistance of 30 microhms, what would be your voltage? E = 600 uV.
If you have 150 uV and current is 30 uA, what is the resistance? R = 5 uΩ.
If you have 270 uV and resistance is 90 uΩ , what is the current? I = 3 uA.
14 mm / 30 mm/s = Time Constant .46
S = 5uV/mm, D = 10mm V = 50uV
V = 175uV/mm, D = 25mm S = 7uV/mm
V = 100uV, S = 7uv/mm D = 14.28mm
D = 15mm, S = 15uV/mm V = 225vV/mm
S = 20uV, V = 60uV D = 3mm
D = 1.66mm, S = 30vU/mm V = 50uV
D = 142.8mSec F = 7Hz
F = 12.5Hz D = 80mSec
D = 250mSec F = 4 Hz
F = 15Hz D = 66.6mSec
P.S. 25mm/sec, A 3mm, D = 120msec
P.S. 25mm/sec, A 3mm, F = 8.33Hz
P.S. 25mm/sec, V 20uV, A 4mm, S = 80uV/mm
P.S. 25mm/sec, A = 8mm, D= 320msec
P.S. 25mm/sec, A 8mm, F = 3.125Hz
P.S. 25mm/sec, V 20uV, A 18mm or 18mm, S = 360uV
Pen Deflection %: Damping = 1mm, Deflection = 9mm 11% Damping
Pen Deflection %: Damping = .8mm, Deflection = 8.5mm 9% Damping
Pen Deflection %: Damping = 1.2mm, Deflection = 7.9mm 15% Damping
Pen Deflection %: Damping = 0mm, Deflection = 8.5mm 0% Damping
Pen Deflection %: Damping = .8mm, Deflection = 8mm 10% Damping
Pen Deflection %: Damping = 1mm, Deflection = 8mm 12.5% Damping
Pen Deflection %: Damping = .5mm, Deflection = 8mm 6.25% Damping
Pen Deflection %: Damping = .8mm, Deflection = 5.5mm 14.4% Damping
Pen Deflection %: Damping = .5mm, Deflection = 8mm 6% Damping
Pen Deflection %: Damping = .9mm, Deflection = 8mm 11% Damping
Pen Deflection %: Damping = 1.1mm, Deflection = 8mm 13.75% Damping
Pen Deflection %: Damping = .9mm, Deflection = 8mm 11.25% Damping
Pen Deflection %: Damping = 1.8mm, Deflection = 8.2mm 22% Damping
Settings: P.S. 60 mm/s, Sensitivity 7 uV/mm, HF 70 Hz, LFF 1 Hz. If a wave measures 12 mm peak to peak, what is the voltage? 84 uV.
If the frequency of a wave is 8 Hz, what is the duration? 125 msecs.
If the distance between C3 and CZ in the coronal plane is 6.5 cm, what is the distance between the left pre-auricular crease and T3? 3.25 cm.
What class of drugs are most effective in the tx of SE? Barbituates.
Which type of electrodes are considered invasive? T1 & T2.
Post HV anterior slowing longer than 2 mins... Is abnormal.
The circumference is 56 cm. The center mark in the back of the head will be placed at... 28 cm.
LIO-A1 and FP1-A1 - What will the phase look like looking up? Phase Opposition: Input I (-), Input II (+).
LIO-A1 and FP1-A1 - What will the phase look like looking down? Phase Reversal: Input I (+), Input II (-).
LIO-A1 and FP1-A1 - What will the phase look like looking left? Both channels negative up (-).
LIO-A1 and FP1-A1 - What will the phase look like looking right? Both channels negative down (+).
What is the direction of the pen and the voltage if Grid 1 = 50uV and Grid 2 = 70uV? Up, 120 uV.
The distance between C3 and Cz in the coronal plane is 7.5 cm. What is the distance between the left pre-auricular crease and T3? 3 cm.
Ohm's Law: R = E/I
Ohm's Law: E/R = I
Ohm's Law: E = IR
Power/Watts: (2=squared)/R = P
18 V, 3 Ohms I= 3 Amps
6 Amps, 18 Volts P= 108 Watts
36 Volts, 3 Ohms P= 12 Amps
12 Amps, 36 Volts P= 432 Watts
10/20: 61 @90% 54.9
10/20: 51 @20% 10.2
10/20: 46 @70% 27.6
10/20: 37 @90% 34.2
10/20: 41 @20% 8.2
10/20: 69 @70% 41.4
10/20: 71 @70% 35.0
10/20: 44 @20% 8.8
10/20: 57 @20% 11.4
10/20: 49 @70% 29.4
10/20: 63 @70% 37.8
TC of .32 = LFF of -5
LFF of 1 Hz = TC of .16
Created by: kmburg5840
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