1. Demonstration Calculator – Multispecialty
SIDE A
SIDE B

2. SIDE A Marketing information surface area * Centimeter measuring scale
* Body Temperature conversion scale
* Hypothermia and Fever Ranges for three
types of thermometers
* Annual CFalendar with simplified month-to-
month transition
* Fixed Holidays marked on annual calendar
* Automatic adjustment for Average
Menstrual Cycle Length
* Infants Age (in days) calculator
* Sperm Exposure scale
* Date of Ovulation and Implantation
* Pregnancy Landmarks scale
* Future or past Menstrual Cycle markers
* Gestational Age accurate to one day
* CRL, BPD, and Fetal Weight scales
* BMI Calculator and Body Type ranges
* Vital Signs calculator for Respiration and
Heart Rate adjusted for patient age
Marketing information surface area

3. Centimeter Scale
The Centimeter Scale located at the top of Side A is used for a wide variety of medical applications, including measurement of skin lesions.

4. Body Temperature Scale
The Body Temperature scale displays a patient’s hypothermia or fever range, and interconverts Fahrenheit to Centigrade
In this example, the patient’s body temperature of 102.9°F (39.4°C) is a low grade fever by rectal thermo-meter but a mid grade fever by ear or oral thermo-meter.
Body Temperature ranges are displayed for three types of thermometers – Eardrum scan, Oral, and Rectal.

5. Annual Calendar Scale Month - to - Month Transitions
A small diagonal line marker is used to easily and rapidly identify the first day of each month on the Calendar Scale in order to facilitate easy month-to-month transitions for clinical scheduling.

6. Fixed Holiday Markers
Christmas – red dot
New Years Day – black dot
Fixed holidays are marked by color dots on the Calendar Scale to assist clinical scheduling near certain holidays.
Valentines Day – red dot
Halloween – orange dot
St Patrick's Day – green dot
Forth of July – blue dot

7. Average Cycle Length Scale
In this example:
LMP on January 7
for 36 day cycles
The Average Cycle Length scale automatically adjusts the position of the Last Menstrual Period (LMP) marker to compensate for variations in Menstrual Cycles
LMP on January 15
for 28 day cycles
LMP on January 21
for 22 day cycles

8. Average Cycle Length Scale
The Average Cycle Length scale automatically compensates for cycle variations to greatly improve accuracy in Gestational Age and Due Date
Example:
LMP is on January 25 for average cycle length of 28 days
Due Date is on
November 3rd

9. Average Cycle Length Scale
Example: For LMP on January 26th 38
Due Date is on
November 13th
if average cycle
length is 38 days
Due Date is on
October 28th
if average cycle
length is 22 days 22

10. Sperm Exposure Scale
Example: Intercourse between April 17 and April 25 may result in pregnancy.
Rarely, sperm may remain viable for up to 7 days before ovulation. Most conceptions occur with sperm 0 to 3 days old. Eggs are fertilizable for 28 hours after ovulation, so intercourse
up to 24 hours after ovulation may result in conception.

11. Early Pregnancy Landmarks
Missed next Menstrual Period would have been on June 13
Embryo Implantation is on June 6
Ovulation is on May 30
Example: For LMP on May 16
Pregnancy test would be positive between June 10 and June 19

12. Mid Pregnancy Landmarks
Biochemical Screen – August 5 to Sept 6
Chorionic Villus Sample - August 11 to August 25
Nuchal Translucency August 22 to Sept 8
Amniocentesis Sept 8 to Sept 31
Tri/Quad Screen AFP Sept 22 to October 7
Level II Ultrasound Oct 7 to Oct 28
Early Viability – Nov 4 to Nov 18
GTT, RPR, H/H, Ab ---- Nov 18 to Dec 16
RhoGam injection Dec 16 to Dec 31
Group B strep Feb 4 to Feb 18
Example:
LMP=June 3
28 day cycles

13. Infant Age in Days
Calculate Infant Age by aligning the Birthday Marker (also the LMP 28 day marker) with baby’s date of birth, then align the cursor marker with the current date. Read the infant's age in days at the cursor marker position on the Light Blue Days Scale.
Birthday
Example 1:
For Birthday on October 5, infant age on
December 17 is
73 days
Birthday
Example 2:
For Birthday on October 5, infant age on June 26
is 263 days

14. Gestational Age Crown-Rump Length and Fetal Weight
Example:
On March 20 the gestational age is 8 weeks 3 days
This is Day 59 of gestation, and Fetal Heart Motion should be visible on ultrasound
Displays the average
Crown-Rump Length (in mm) and Fetal Weight (in gms) for gestational age range 4 weeks 2 days to 12 weeks 4 days, for each gestational age and corresponding calendar date.
The Crown Rump Length (CRL) should be 18 mm
Fetal weight is approximately 1.5 gms

15. Gestational Age Biparietal Diameter and Fetal Weight
Example:
On September 5 the gestational age is
32 weeks 2 days
This is Day 226 of gestation, and CBC should be ordered.
Displays the average
Biparietal Diameter (in mm) and Fetal Weight (in gms) for gestational age range from
12 weeks 4 days to 42 weeks for each gestational age and corresponding calendar date.
Biparietal Diameter (BPD) should be 8.3 cm
Fetal Weight is approximately 1800 gms

16. Menstrual Period Predictor
Calculates past and future expected calendar dates of Menstrual Periods for patients with regular 28 day cycles. Align the LMP 28 day marker with the current date, then align the cursor marker with a red dot on the Light Blue Days scale and read the calendar date indicated by the cursor. Use the 1st, 2nd, 3rd, 4th,etc red dot to predict Menstrual Dates for 1, 2, 3, 4, etc cycles in the future.
Example:
For LMP on June 1, in 2 cycles the expected MP will start July 27.
Expected MP in 2 cycles
1st dot
2nd dot

17. Menstrual Period Predictor
To calculate past calendar dates of Menstrual Periods, align the cursor marker on the appropriate (1st, 2nd. 3rd ,etc) red dot on the date of the current or last Menstrual Period, then read the date of the desired past Menstrual Period at the LMP 28 day marker.
MP 2 cycles ago
Current MP
Example:
For current Menstrual Period on July 27, the Menstrual Period two cycles ago started on June 1.
1st dot
2nd dot

18. Body Mass Index Calculator
Example:
Patient Weight is 190 lbs
Patient Height is
5’ 9”
Align 5’ 9” with
190 lbs on the Height & Weight scales
The BMI is
28 kg/m2
in the Overweight range
Calculates the Patient’s Body Mass Index (BMI) from Height and Weight, and displays the result using color coded body type ranges.
Use the Pink field on Side A

19. Respiration Rate Calculator
Calculates patient's rate of respiration from total number of inspirations during a time period ranging from 10 seconds to 45 seconds.
Example:
The patient has
6 inspirations during a
20 second observation period.
Align the 20 second marker with the Respiration 6 marker
The Respiration Rate is 18 per minute (rpm)
In This Case:
For a 4-year-old child, this respiration rate is in the Hypoventilation range
For a 16-year-old patient, this respiration rate is in the Normal range

20. Pulse Rate Calculator Example:
Calculates patient's heart rate from total number of pulses during a time period ranging from 10 seconds to 45 seconds. The most common time period used to measure pulse rate is 15 seconds, identified by a bold marker on the time scale.
In This Case:
For a 4-year-old child, this heart rate is in the Normal range
For an Adult, this heart rate is in the Tachycardia range
Example:
The patient has 28 pulses during a 15 second observation period.
Align the 15 second marker with the Pulse Count 28 marker
The pulse rate (heart rate) is 110 per minute (bpm)

21. Marketing Space
On this demonstration model, there are two blank regions on Side A and one large region on Side B available for marketing information.

22. SIDE B Large surface area for marketing information
* ECG Heart Rate calculator– two speeds
* Conversion Scale – centimeters to inches
* Waist to Hip Ratio calculator
* Waist to Hip Ratio mortality risk calculator
– male and female
* Waist to Hip Ratio population percentile
* Conversion Scale – pounds to kilograms
* Drug Dose calculator by Body Weight
* Drug Dose Syringe Volume calculator by
Body Weight
Large surface area for marketing information

23. ECG Pulse Rate Calculator
Align the first QRS complex with the reference arrow on the scale.
Read heart rate (in bpm) at the position of the First or Second QRS complex, depending upon ECG paper speed.
For ECG paper speed of 25 mm/sec, read heart rate at the Second QRS complex. For ECG paper speed of 50 mm/sec, read heart rate at the First QRS complex.
This scale calculates a patient's heart rate by measuring the distance between one or two QRS complexes on a standard ECG strip.

24. ECG Pulse Rate Calculator
Align the first QRS complex with the reference arrow on the scale.
For Low Heart Rates
(Bradycardia)
This scale calculates a patient's heart rate by measuring the distance between one or two QRS complexes on a standard ECG strip.
For Bradycardia, use the Dark Green scale
at paper speed of 25 mm/sec. Read heart rate at the First QRS complex.

25. ECG Pulse Rate Calculator
For standard paper speed of 25 mm/sec, this patient has a heart rate of
35 beats/min as indicated at the
First QRS complex on the Dark Green scale. 1 2 1
xx xx
for Normal Range or Tachycardia xx
For standard paper speed of
25 mm/sec, this patient has a heart rate of 112 beats/min as indicated at the Second QRS complex on the Light Green scale.
for Bradycardia

26. Inch to Centimeter Converter
Interconversion of Inches to Centimeters is done using the Waist-to-Hip Ratio scale in the pink field on side B.
47 inches
equals
120 cm
Lay a straight edge or paper edge, aligned with the center of the calculator, across the scales to inter-convert centimeter measurements to inch measurements.

27. Waist to Hip Ratio Calculator
Calculates the Waist to Hip Ratio (WHR) from the patient's Waist Circumference and Hip Circumference (in inches or centimeters)
Example:
For a patient with Waist Circumference of 45 in and Head Circum-ference of 50 in:
Align the 45 marker on the Waist inches scale with the 50 marker on the Hip inches scale.
Read the Waist to Hip Ratio (0.9) in the WHR Window.

28. Waist to Hip Ratio Mortality Risk and Population Percentile by Sex
The Waist-to-Hip Ratio is useful for determining the a patient's general risk of Mortality. This feature also calculates the Population Percentile for the patient's waist to hip ratio.
Example:
For a Waist-to-Hip Ratio of 0.9
The Relative Risk of Mortality for a woman is 1.4
The Relative Risk of Mortality for a man it is 0.9
Women with a WHR of 0.9 are in the 85th percentile.
Men with a WHR of 0.9 are in the 55th percentile
85th
1.4
55th
0.9

29. Pound to Kilogram Converter
This feature interconverts body weight from Pounds to Kilograms, or vice versa.
Align the patient’s body weight at the Weight in Pounds marker, then read the patient's metric body weight at the Weight in Kilograms marker.
In this example, a 154 pound patient weighs 70 kilograms.
Example:
70 kg equals pounds

30. Drug Dose Calculator by Body Weight
Rapid determination of a drug dose is accomplished by aligning the patient's Body Weight (in pounds or kilograms) along the outer yellow scale, then reading the Drug Dose (in milligrams) where the appropriate reference line intersects the Dose Scale.
Patient weighs 146 lbs
Example:
A patient who weighs 146 pounds needs a medication administered at 0.75 mg/kg.
The calculated dose is 45 mg.

31. Drug Dose Calculator by Syringe Volume
Example:
A patient who weighs 280 pounds needs a Pharmatropin injection.
The calculated volume of Pharmatropin
is 0.60 ml.
Rapid determination of the Syringe Volume of an injectable drug is accomplished by aligning the patient's Body Weight (in pounds or kilograms) along the outer yellow scale, then reading the Syringe Volume (in milliliters) at the level of the Red Field inside the syringe diagram.