Rx Calculations – (Quick Facts)

Front 1

Define molecular weight (MW)

Define equivalent weight (Eq Wt)

Define milliequivalent weight (mEq)

Back 1

Front 2

What is the age range for neonate?

Back 2

BIRTH – 1st MONTH

Front 3

UNITS ﹠ CONVERSIONS:

1 dL = _____ Liter

1 dL = _____ mL

Back 3

1 dL = 1 deciliter

​1 dL = 0.1 L

1 dL = (¹/₁₀) of Liter

​1 dL = 100 mL

Front 4

UNITS ﹠ CONVERSIONS:

1 DL = _____ Liter

1 DL = _____ mL

Back 4

1 DL = 1 Decaliter (DL)

​1 DL = 10 L

​1 DL = 10,000 mL

Front 5

UNITS ﹠ CONVERSIONS:

milli = (?)

micro = (?)

nano = (?)

pico = (?)

femto = (?)

atto = (?)

Back 5

milli = 10⁻³
micro = 10⁻⁶
nano = 10⁻⁹
pico = 10⁻¹²
femto = 10⁻¹⁵
atto = 10⁻¹⁸

Front 6

UNITS ﹠ CONVERSIONS:

1:1,000 = (?)

Back 6

1 g / 1,000 mL

(or)

1 mg /mL

Front 7

UNITS ﹠ CONVERSIONS:

1,000 mL of NS = _____ mEq

Back 7

154 mEq

Front 8

What is the FREEZING POINT DEPRESSION of an isotonic solution?

Back 8

(#12–N)

🅰: –0.52 ⁰C

❶ An ISOTONIC solution depresses the Frezing Point to – 0.52 ⁰C

❷ NaCl = 0.9% = Isotonic = – 0.52 ⁰C

Front 9

BASIC CONVERSION:

milli, micro, nano, pico,femto, & atto are PREFIXES associated with which MEASURING SYSTEM?

Back 9

(#2-A)

Metric

System International

(System International measuring system)

Front 10

MW﹠Eq Wt﹠mEq:

What are the VALENCE electrons for:

⁽¹⁾˸ Organic Acids

⁽²⁾˸ Protein

Back 10

(#9–A)

⁽¹⁾˸ Organic Acids = (-1)

⁽²⁾˸ Protein = (-1)

Front 11

PERCENTAGE (%) PREPARATIONS:

Asking for a (%) is the same as saying what?

Back 11

PARTS per HUNDRED

Front 12

ABBREVIATION:

aa = _____

Back 12

of each

Front 13

If a solution of a total of 4 LITERS requires 31 mL of Benzalkonium Chloride concentrate (17%), what would be your final solution in mL?

Back 13

(#5–A)

Since it is CONCENTRATED, you would NOT add it to the 4 L but instead 3,969 mL to make it a final solution of 4,000 mL.

(4,000 mL) – (31 mL) = 3,969 mL

Front 14

DEFINE:

molarity

⨷

molality

Back 14

Front 15

PERCENTAGE ﹠ RATIO STRENGTH:


If 1 gm of a substance is DISSOLVED in 8 gm of alcohol, what is its (%) w/w?

Back 15

🅰: 11.1 %(w/w)

DISSOLVED = (1 gm) / (1 gm + 8 gm)

(#5–J)

Front 16

PERCENTAGE﹠RATIO STRENGTH:

Normal Saline (NS) = _____ % (w/v) NaCl

Back 16

0.9% (w/v)

Front 17

ALLEGATION:


What is the PROPORTION of a 20 parts 95% to 25 parts 50%?

Back 17

(#6–F)

🅰: 4:5

(20) / (25) = 4/5

Front 18

ALLEGATION:

❶ What is the chemical name for H₂O₂?

❷ At what PERCENTAGE STRENGTH of H₂O₂ does Normal Saline (0.9%) has?

Back 18

H₂O₂ = Hydrogen Peroxide

(0.9%) NaCl = "0%" of H₂O₂

Front 19

ALLEGATION ﹠ PERCENTAGE STRENGTH:

❶: Water = _____ (%) v/v

❷: Vanishing Cream Base = _____ (%) w/v

❸: White Petrolatum = _____ (%) w/w

Back 19

❶: Water = 0% (v/v)

❷: Vanishing Cream Base = 0% (w/v)

❸: White Petrolatum = 0% (w/w)

Front 20

[⓫]: TPN﹠EN Calories

PROTEIN = _____ kcal/gm

FAT = _____ kcal/gm

CARBOHYDRATES = _____ kcal/gm

DEXTROSE = _____ kcal/gm

ALCOHOL = _____ kcal/gm

Back 20

PROTEIN = 4 kcal/gm

FAT = 9 kcal/gm

CARBOHYDRATES = 4 kcal/gm

DEXTROSE = 3.4 kcal/gm

ALCOHOL = 7 kcal/gm