Page 6 - Referance Guide For Pharmaceutical Calculations (Naplex, Fpgee and Ptce)
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Practice Calculation Questions



                                             Units For Pharmaceutical Calculations

                    1 kilogram                       =       1000 grams  =  2.2 lbs
                    1 lb                             =       454 grams
                    1 gram                           =       1000 milligrams
                    1 milligram                      =       1000 micrograms
                                                                                 -6
                    1 microgram                      =       0.001 milligrams  =  10  grams
                                                               -9
                    1 nanogram                       =       10  grams
                    1 grain                          =       65 milligrams
                    1 liter                          =       1000 cc
                    1 ounce (oz)                     =       30 cc
                    16 ounces (oz)                   =       480 cc  =  1 pint
                    1 pint                           =       480 cc
                    1 quart                          =       960 cc  =  2 pints
                    1 gallon                         =       3840 cc  = 8 pints  =  4 quarts
                    1 dropperful                     =       1 cc
                    1 teaspoonful                    =       5 cc
                    1 tablespoonful                  =       15 cc
                    1 teacupful                      =       120 cc
                    1 meter                          =       100 centimeters
                    1 centimeter                     =       10 millimeter  =  0.01 meters
                    1 inch                           =       2.54 centimeters  =  0.0254 meters
                    Density                          =       weight/volume

                                           Equivalents, Milliequivalents, Normality..

                    Equivalent weight (molecule)     =       molecular weight / number of valence
                    Equivalent weight (atom)         =       gram atomic weight / number of valence
                    1 Equivalent                     =       weight (gm) / equivalent weight (gm)
                    1 Milliequivalent (mEq)          =       weight (mg) / equivalent weight (mg)
                    1 Equivalent                     =       1000 milliequivalents (mEqs)
                    NormaLITY (N)                    =       It  is  defined  as  the  presence  of  number  of  grams
                                                             equivalent weight of solute in 1000 ml or (1L) solution.
                    MolaRITY (M)                     =       It  is  defined  as  the  presence  of  number  of  moles  of
                                                             solute in 1000 ml or (1L) of solution.
                    MolaLITY (m)                     =       It  is  defined  as  the  presence  of  number  of  moles  of
                                                             solute in 1000 grams of solvent.
                    OsmolaLITY                       =       It measures the total number of particles dissolved in a 1
                                                             kg or 1000 grams of water – milliosmoles per liter of
                                                             solution (mOsm/L)
                    OsmolaRITY                       =       It measures the total number of particles dissolved in a 1
                                                             liter or 1000 cc of water – milliosmoles per kilogram of
                                                             solution (mOsm/kg)
                    Osm or osmol                     =       1 mole of a non ionizable substance / 1000 grams water
                    1 Osm or 1 osmol                 =       1000 milliosmols (mOsm)


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