1
SP-100USNU
User’s Guide
2
Safety Precautions
Thank you for purchasing this CASIO product.
Be sure to read the “Safety Precautions” before using this product
to ensure that you use it correctly. Be sure to keep all user
documentation handy for future reference.
Danger
Indicates something that creates the major risk of death or
serious personal injury.
kButton Type and Coin Type Battery
Precautions
Take care to ensure that a battery will not be
swallowed accidentally.
Particular care is required to keep batteries away from
children.
Should a battery be swallowed accidentally or if there is a
possibility that a battery has been swallowed, immediately contact
a physician.
Swallowing a battery can result in chemical burns, mucosal tissue
penetration, and other serious problems that create the risk of
death.
3
Warning
Indicates something that creates the risk of death or
serious personal injury.
kDisplay Screen
Do not press the LCD or subject it to strong impact.
Doing so can cause the LCD glass to crack, creating
the risk of personal injury.
Should the LCD become cracked, never touch any of
the liquid inside.
LCD liquid getting on the skin creates the risk of skin irritation.
Should LCD liquid get into your mouth, immediately rinse your
mouth out and contact your physician.
Should LCD liquid get in your eyes or on your skin, rinse with clean
water and then contact your physician.
kBattery Precautions
Should fluid leaking from a battery get on your skin or
clothing, immediately rinse it off with clean water.
Battery fluid getting into the eyes creates the risk of eyesight loss,
etc. Rinse the eyes and then immediately contact a physician.
4
Caution
Indicates something that creates the risk of minor personal
injury or physical damage.
Observe the precautions below. Failure to do so can cause a
battery to rupture, creating the risk of fire, personal injury, and
soiling of nearby objects by leaking fluid.
• Do not try to take a battery apart and never allow a
battery to become shorted.
• Do not charge a non-rechargeable battery.
• Do not expose a battery to heat or throw it into fire.
• Use only the specified type of battery.
• Load a battery with its poles (plus (+) and minus (–))
facing correctly.
• Replace the battery as soon as possible after it goes
dead.
Battery Precautions
Observe the precautions below. Failure to do so can
cause the battery to explode or leak flammable liquid
or gas.
• Use only the type of battery that is specified for this product.
• Do not burn a battery or dispose of it in an incinerator, or by
mechanical crushing or cutting.
• Do not subject a battery to excessively high or low temperatures
during use, storage, or transport.
• Do not subject a battery to excessively low barometric pressure
during use, storage, or transport.
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Important Precautions
• If you suspect that the calculator is operating abnormally due to
static electrical charge or some other problem, press A to restore
normal operation.
• Avoid dropping the calculator and otherwise subjecting it to severe
impact.
• Never try to take the calculator apart.
• Never bend or twist the case.
• Wipe the unit with a soft, dry cloth to clean it.
• The nursing and pharmacy calculations of this product are
performed based on generally accepted calculation formulas
(current as of 2021). Because of this, calculated values may differ
from practical values. Refer to “Calculation Formulas” (page 20)
when using this calculator.
• The contents of these instructions are subject to change without
notice.
• CASIO COMPUTER CO., LTD. assumes no responsibility for any
loss or claims by third parties which may arise from the use of this
product.
Power Supply
• Even if you do not use the calculator, you should replace the battery
at least once every two years.
• The battery that comes with this unit discharges slightly during
shipment and storage. Because of this, it may require replacement
sooner than the normal expected battery life.
6
Contents
Safety Precautions ······························································· 2
Important Precautions ·························································· 5
Power Supply ········································································ 5
Adjusting Contrast ································································ 7
Nursing and Pharmacy Calculations ···································· 8
Basic Calculations ······························································ 22
Auto Power Off Function ····················································· 23
Replace Battery Icon ·························································· 23
Battery Replacement ·························································· 23
Initializing Memory ······························································ 24
Specifications ····································································· 24
7
Adjusting Contrast
1 Press A.
2 Long-press = for about four seconds to display the message
below.
“Set contrast OK[=] Nxt[+]”
3 Press =.
4 Use +(dark) and ,(light) to adjust.
5 Press A.
8
Nursing and Pharmacy
Calculations
kNursing and pharmacy calculation keys
You can perform the calculations below.
ACalculation 1 BMI(lb) BMI, Ideal weight(lb)
Calculation 2 BMI(kg) BMI, Ideal weight(kg)
BCalculation 1 Dose(Des) Desired dose amount(mL)
Calculation 2 Dose(Ord) Ordered dose amount(mg)
CCalculation 1 BSA(lb) BSA(m2)
Calculation 2 BSA(kg) BSA(m2)
D
Calculation 1 eGFR(M) CCr (mL/min),
eGFR(mL/min/1.73m2)
Calculation 2 eGFR(F) CCr (mL/min),
eGFR(mL/min/1.73m2)
ECalculation 1 IV rate Drops per minute (gtts/min)
Calculation 2 Date Date, days
BMI: Body Mass Index
Dose(Des): Dose Calculation (Ordered dose Desired dose)
Dose(Ord): Dose Calculation (Desired dose Ordered dose)
BSA: Body Surface Area (Du Bois)
eGFR(M): estimated Glomerular Filtration Rate(Male)
eGFR(F): estimated Glomerular Filtration Rate(Female)
Calculation 2
Calculation 1
9
CCr: Creatinine Clearance
IV rate: Infusion Volume drip rate
kSwitching Between Calculation 1 and Calculation 2
Each press of a nursing and pharmacy calculation key
toggles between Calculation 1 and Calculation 2.
Example: To switch between BMI (lb) and BMI (kg)
1 AB
• This selects BMI (lb).
2 B
• This selects BMI (kg).
3 B
Resume Function (Last Memory)
When you perform an operation in Step 1 of the above operation,
Last Memory automatically displays the calculation (Calculation 1 or
Calculation 2) that you last used.
BMI
(
lb
)
BMI
(
kg
)
10
kBMI (lb)
Example: Male, “Height” = 5 feet 9 inches, “Weight” = 191 lbs
1 AB
If something else is displayed, press B again.
2 =
1 2
Male Female
3 1 (1: Male, 2: Female) Height?
ft
4 5=Height?
in
5 9=Weight?
lb
6 191=
28.2
BMI
7 =
160.0
Ideal
weight
lb
8 =
BMI
(
lb
)
Enter
[=]
11
kBMI (kg)
Example: Female, “Height” = 165 cm, “Weight” = 67 kg
1 ABB
If something else is displayed, press B again.
2 =
1 2
Male Female
3 2 (1: Male, 2: Female) Height?
cm
4 165=Weight?
kg
5 67=
24.6
BMI
6 =
56.6
Ideal
weight
kg
7 =
BMI
(
kg
)
Enter
[=]
12
kDose (Des)
Example: “Ordered dose amount” = 150 mg, “Quantity” = 1 mL,
“Amount on hand” = 50 mg
1 Ar
“Ordered dose Desired dose” (scroll)
If something else is displayed, press r again.
2 =
Ordered dose amount?
mg
3 150=
Quantity?
mL
4 1=
Amount on hand?
mg
5 50=
3.00
Desired dose amount
mL
6 =
Ordered
dose
Enter
[=]
13
kDose (Ord)
Example: “Desired dose amount” = 3 mL, “Quantity” = 1 mL,
“Amount on hand” = 50 mg
1 Arr
“Desired dose Ordered dose” (scroll)
If something else is displayed, press r again.
2 =
Desired dose amount?
mL
3 3=
Quantity?
mL
4 1=
Amount on hand?
mg
5 50=
150.00
Ordered
dose
amount
mg
6 =
kBSA (lb)
Example: “Height” = 5 feet 3 inches, “Weight” = 163 lb
1 As
If something else is displayed, press s again.
2 =Height?
ft
3 5=Height?
in
4 3=Weight?
lb
5 163=
1.773
BSA m2
6 =
Desired
dose
Enter[=]
BSA
(
lb
)
Enter[
=
]
14
kBSA (kg)
Example: “Height” = 178.3 cm, “Weight” = 76.2kg
1 Ass
If something else is displayed, press s again.
2 =Height?
cm
3 178.3=Weight?
kg
4 76.2=
1.942
BSA m2
5 =
BSA
(
kg
)
Enter
[=]
15
keGFR (M)
Example: Black male, “Age” = 35 years, “Weight” = 80 kg, “SCr”
= 0.87 mg/dL
1 At
Use this for male.
If something else is displayed, press
t again.
2 =
1222
Black NonBlack
3 1 (1: Black, 2: Non-black) Age?
years
4 35=Weight?
kg
5 80=SCr?
mg/dL
6 0.87=
134.10
CCr mL/min
7 =
130.
eGFR mL/min/1.73m2
8 =
eGFR
(
Male
)
Enter
[=]
16
keGFR (F)
Example: White female, “Age” = 30 years, “Weight” = 68 kg,
“SCr” = 0.74 mg/dL
1 Att
Use this for female.
If something else is displayed, press
t again.
2 =
1222
Black NonBlack
3 2 (1: Black, 2: Non-black) Age?
years
4 30=Weight?
kg
5 68=SCr?
mg/dL
6 0.74=
119.33
CCr mL/min
7 =
109.
eGFR mL/min/1.73m2
8 =
eGFR
(
Female
)
Enter
[=]
17
kIV rate
Example: “Drop Factor” = 20 gtts/mL, “Total IV volume” =
500mL, “Time” = 480 minutes
1 Au
“IV Drip Rate(Infusion Vol)” (scroll)
If something else is displayed, press
u again.
2 =Drop
Factor?
gtts/mL
3 20=Total
IV
volume?
mL
4 500=Time?
min
5 480=
21.
Drops
per
min gtts/min
“Drops per minute” (scroll)
6 =
IV
Drip
Rate
(
I
Enter
[=]
18
kDate
This calculation lets you calculate the number of days (excluding the
start date or end date) between dates.
You can input dates for calculation within the range of January 1,
2000 to December 31, 2099.
Example: To calculate the number of days from January 1, 2020
to May 5, 2025
1 Auu
If something else is displayed, press u again.
2 200101
For the year, use the two rightmost digits of the Gregorian year.
3 =
123
Days
bfr
/
aftr
/
prd
4 Press 3 to select “prd” (period).
Date?
20yy
mm
dd
[=]
(1 selects “bfr” (before), 2 selects “aftr” (after).)
5 250505=
1
951.
Period:
For the year, use the two rightmost digits of the Gregorian year.
6 =
Base
date?
20yy
mm
dd
[=]
2020
-
01
-
01
Base
date?
20yy
mm
dd
[=]
19
Example: To calculate the date 100 days before January 1, 2020
1 Auu
If something else is displayed, press u again.
2 200101
For the year, use the two rightmost digits of the Gregorian year.
3 =
123
Days
bfr
/
aftr
/
prd
4 Press 1 to select “bfr” (before).
Days
before?
[=]
(2 selects “aftr” (after), 3 selects “prd” (period).)
5 100=
2019
-
09
-
23
100
days
before:
6 =
Base
date?
20yy
mm
dd
[=]
2020
-
01
-
01
Base
date?
20yy
mm
dd
[=]
20
kCalculation Formulas
BMI(lb)
Body Mass Index
Ideal weight (lb)
BMI=Weight(lb)÷(Height(in)+(Height(ft)×
12))2×703
Male: Ideal Body Weight(IBW: lb)=106+6×
((Height(in)+(Height(ft)×12))-60)
Female: Ideal Body Weight(IBW: lb)=100+5
×((Height(in)+(Height(ft)×12))-60)
BMI(kg)
Body Mass Index
Ideal weight (kg)
BMI=Weight(kg)/(Height(m))2
Male: Ideal Body Weight(IBW: kg)=(106+6×
(Height(m)×39.37-60))×0.4535924
Female: Ideal Body Weight(IBW: kg)=(100+
5×(Height(m)×39.37-60))×0.4535924
Dose(Des)
Dose Calculation
(Ordered dose
Desired dose )
Desired dose amount(mL)=(Ordered dose
amount(mg)/Amount on hand(mg))×
Quantity(mL)
Dose(Ord)
Dose Calculation
(Desired dose
Ordered dose )
Ordered dose amount(mg)=Desired dose
amount(mL)×(Amount on hand(mg)/
Quantity(mL))
BSA(lb)
Body Surface Area
(lb) (Du Bois)
BSA(m2)=0.007184×(Weight(lb)×
0.4535924)0.425×(Height(ft)×30.48+
Height(in)×2.54)0.725
BSA(kg)
Body Surface
Area(kg) (Du Bois)
BSA(m2)=0.007184×(Weight(kg))0.425×
(Height(cm))0.725
Calculation 1
Calculation 2
Calculation 1
Calculation 2
Calculation 1
Calculation 2
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