| APPLYING
THE ELG SENSORS
A
fresh set of sealed BIO|ANALOGICS' ELG sensors (4 sensors) is required
to perform an ELG bioimpedance test.
*Note:
Only BIO|ANALOGICS' "Impedance Code A" ELG Sensors
are recommended for their low impedance (< 3 ohms) and high
conductance values. To insure scientific accuracy and good hygiene
practices, new ELG Sensors should be used for each test.
First
Sensor Site
The first sensor should be placed on the back of the
right hand near the wrist. Locate the "Styloid Process" (the bump
near the back of the wrist). Place the center of the first sensor
in the middle of the wrist just across from the Styloid process.
The first red alligator clip will be attached here (A).
Second
Sensor Site
The second sensor should be placed on the back of the
hand, directly behind the knuckle of the index finger. The first
black alligator clip will be attached here (B).
Third
Sensor Site
The third sensor should be placed on top of the ankle,
bisecting a line between the Medial and Lateral Malleoli (the bumps
located on the inside and outside of the ankle. The second red alligator
clip will be attached here (C).
Fourth
Sensor Site
The fourth sensor should be placed directly behind the
joint of the great toe. The second black alligator clip will be
attached here (D).
.
 
PERFORMING
A BIOIMPEDANCE TEST
Once
the patient has been properly connected to the ELG meter, their
bioimpedance may be accurately measured. The patient should be supine
(lying down) on a nonconductive surface such as an exam table or
massage table, or standing comfortably with arms and legs slightly
spread. The supine position is preferred due to potential fluctuations
in readings associated with muscle contraction in the legs while
standing.
*Note:
A sitting position is never recommended and will yield unpredictable
results.
Calibration
Press the ELGII Calibrate and Operate
buttons simultaneously. The LCD screen should read 000 indicating
that the meter in calibration.
Operation
Once the ELGII meter calibration has been verified,
release the calibrate button and continue to press the Operate button
only. In a few seconds, the patient's bioimpedance value will appear
on the LCD screen. This number is then recorder for input into the
body composition algorithm contained in the HMS Body Composition
module or the QuickComp Body Composition Calculator. A typical reading
is in the range of 300 to 700 ohms.
Anthropometric
Measurements (optional)
A key feature of BIO|ANALOGICS' body composition calculation
is the ability to include anthropometric measurement
data about the patient in the calculation of lean mass. This technique
is known as anthro-impedance and can significantly increase assessment
accuracy. Special populations, such as the very lean or morbidly
obese, and research populations benefit most from the addition of
these anthropometric measurements. To activate the anthro-impedance
calculations, select the Anthros button in the Body Composition
Module, or enable anthros from the SETUP routine in the QuickComp
Calculator. Enter the length and girth values requested on the anthropometric
data dialog box. A cloth tape measure calibrated in centimeters
is required for gathering the data.
You
are now ready to produce a body composition report. |
