6
3
Figure 3
Pressure Simulator is ready for use. The unit has been factory calibrated for use with the accessories
included in the kit. No further calibration adjustments should be necessary at this time. If the unit is to be
used with a sphygmomanometer other than that supplied with the unit, or if recalibration is necessary at
a later date, then see the section titled “Calibration Procedures”.
FAMILIARIZING YOURSELF WITH THE NASCO
Life
/
form
®
BLOOD PRESSURE SIMULATOR CONTROL PANEL
Under the display window are three buttons: Menu, Gap, and Calibrate.
(See figure 5.)
The systolic pres-
sure is set by pressing the Menu key once. The pressure is adjusted up or down using the up and down
arrow keys.
(See figure 6.)
The diastolic pressure is set by pressing the Menu key a second time. Adjust
the setting up or down with the arrow up and down keys.
(See figure 7.)
The heart rate is set by pressing
the Menu key a third time, and adjusting the rate with the arrow up and down keys. The pulse rate can be
set from 0 beats per minute to 300 beats per minute.
(See figure 8.)
The palpation can be set to either
on or pulseless. When the pulseless setting is used, the diastolic and systolic pressures will automatically
be set to 0.
Figure 4
The Nasco
Life
/
form
®
Blood Pressure Simulator is programmed to demonstrate the 5 Korotkoff phases,
including an auscultatory gap, which can be heard during auscultation of a subject while measuring the
subject’s blood pressure. Each is distinctly different and present for only a portion of the measurement
sequence.
LOW BATTERY INDICATOR
When the battery supply diminishes to a level near the point that the unit will no longer function properly,
the “low batt” segment of the systolic pressure display will activate when the pressure in the sphygmoma-
nometer cuff reaches above 20 mmHg. At this point, the batteries should be replaced as soon as possi-
ble in order to insure proper operation of the unit. Refer to the section titled “Installing the Batteries.”
CALIBRATION PROCEDURES
To calibrate the simulator, set the unit up as described in the section titled “Using The Nasco
Life
/
form
®
Blood Pressure Simulator.” Apply the cuff to the simulated arm. Set the control box systolic pressure
to 150 mmHg and set the diastolic pressure to 70 mmHg. Proceed with a simulated blood pressure
measurement. Note the discrepancy in the readings between the gauge and the control box. Set the
systolic “offset.” Example: If the blood pressure reading was taken and the sounds started at 148 mmHg,
then the offset is +2. If the sounds started at 152 mmHg, the offset is –2. For this example, assume that
the sounds started at 148 mmHg. Press and hold the Calibration key until the systolic correction window
appears.
(See figure 12.)
Using the arrow down key set the correction to +2. Set the diastolic offset. Exam-
ple: If the blood pressure reading was taken and the sounds stopped at 72 mmHg, the offset is –2; or if
the sounds stopped at 68 mmHg, the offset is +2. For this example, assume that the sounds stopped at
72 mmHg. From the systolic window, press the Menu key to change the diastolic window.
(See figure 13.)
With the arrow up key, set the correction to –2. Press the Menu key again and the message “CALIBRA-
TION COMPLETE” will appear. The main menu window will be displayed.
Figure 6
Figure 5
Figure 7
Figure 8
Figure 13
Figure 12
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