HOW TO CALCULATE DAY SUPPLY
INSULIN: 1 ML = 100 UNITS
EX) HUMULIN N U-100
SIG: 35 U SQ DAILY
QUANITY: 10 ML (1000 U)
1000 / 35= 28 DAYS
EAR / EYE: 20 DROPS = 1 ML
EX) SIG: 5 GTTS AD QID X 7D
QUANITY: 10 ML
10 ML (STOCK BOTTLE) X 20 (20/ML)
= 200 / 20 DROPS (SIG) = 10 DAYS
INHALERS: VARY ON ACTUATIONS NUMBERS
EX) ATROVENT (HAS 200 ACTUATIONS)
SIG: INHALE 2X Q12H PO
200 / 4 (SIG) = 50 DAYS
LIQUID: VARIES
EX) SIG: i TSP QID PRN FOR COUGH & COLD
QUANITY: 4 OZ (120 ML)
5 X 4 = 20 (SIG) THEN 120 ML / 20 ML = 6 DAYS
*TO FIND OUT WHAT OZ BOTTLE TO USE JUST DIVIDE THE QUANITY TO 30 ( 120 ML / 30 = 4 OZ BOTTLE )*
OINTMENT / CREAM: VARIES
EX) SIG: NYSTATIN SKIN OINTMENT (100,000U PER GRAM)
APPLY TO DIAPER AREA QID
*DAY SUPPLY VARIES DEPENDING HOW MANY TIMES THEY WILL APPLY ON SKIN AND BY LOOKING HOW BIG IS THE TUBE OF OINTMENT
*BASICALLY THE DAY SUPPLY WOULD BE A QUESS SO THE NYSTATIN OINTMENT WILL LAST 30 DAYS ACCORDING TO THE INFO PROVIDED
*MOST OINTMENTS AND CREAMS USUALLY LAST 30 DAYS
TABLETS / CAPSULES: VARIES
EX) SIG: ii TABS PO QAM, ii TABS PO QHS
QUANITY: 60 TABLETS
SO PATIENT WOULD TAKE 4 TABLETS BY MOUTH EACH DAY IN TOTAL
60 TABS / 4 TABS = 15 DAYS
PATCH: VARIES
EX) SIG: USE AS DIRECTED
QUANTITY: 2 BOXES (ORTHO EVRA PATCH)
THERE ARE 3 SEALED PATCHES IN A BOX, THE DOCTOR WANTS A QUANTITY OF 2 BOXES FOR THE PATIENT.
** SO WE KNOW THAT THERE ARE 3 PATCHES IN 1 BOX SO THERFORE THE PATIENT WILL HAVE 6 PATCHES IN TOTAL SINCE THE DOCTOR REQUESTED 2 BOXES FOR HER.
OBVIOUSLY THE DAY SUPPLY WOULD BE 6 WEEKS SINCE THE PATIENT IS APPLYING ONE PATCH STARTING SUNDAY OF EACH WEEK EXCEPT WEEK 4 (FOR THE FIRST BOX). THE PATIENT REPEATS THE PROCESS AGAIN FOR (THE SECOND BOX).
NEBULIZER SUSPENSIONS: VARIES
EX) SIG: PULMICORT RESPULES 0.25 MG / 2ML
i BREATHING TREATMENT BID QAM & QPM W/ NEB
QUANTITY: 10 AMPULES
PATIENT IS TO TAKE 1 BREATHING TREATMENT 2X A DAY EVERY MORNING AND AFTERNOON WITH NEBULIZER. IT WILL EQUAL TO 2 BREATHING TREATMENTS EACH DAY.
1 AMPULE HAS 2ML THEREFORE 2 AMPULES HAS 4ML
30 AMPULES (CARTON) / 2 AMPULES = 15 DAYS
EXTRA: PULMICORT RESPULES ARE SPECIFICALLY FOR CHILDREN AGES BETWEEN 12 MONTHS TO 8 YEARS OLD TO HELP THEM CONTROL ASTHMA SYMPTOMS AND PREVENT ASTHMA ATTACKS. THIS IS NOT A QUICK RELIEF MEDICATION.
ENEMAS (RECTAL SUSPENSIONS): VARIES
EX) MESALAMINE (5-AMINOSALICYLIC ACID) ENEMA RECTAL 4G/60ML
SIG: INSERT i ENEMA PR QPM
QUANTITY: 420 ML
EACH ENEMA BOTTLE HAS 60 ML. THE DOCTOR IS ASKING FOR A QUANTITY OF 420 ML, SO LETS FIND OUT HOW MANY ENEMA BOTTLES WE NEED TO DISPENSE.
IF 1 BOTTLE = 60 ML
THEN X BOTTLE = 420ML ------< 1 X 420 / 60 = 7 BOTTLES TO DISPENSE
DAY SUPPLY WOULD BE 7 DAYS SINCE DOCTOR IS ASKING TO INSERT 1 ENEMA PER RECTUM EVERY AFTERNOON.
EXTRA: ENEMAS ARE FLUIDS THAT ARE INSERT IN THE RECTUM/COLON USED TO TREAT CONSTIPATION, SO EMEMAS WORK AS A LAXATIVE. ENEMAS CONTAIN WATER & SODIUM PHOSPHATE IN LARGE DOSES TO EVACUATE/CLEANSE THE BOWELS.
MILLIGRAM DRUGS SUBSTITUTED IN MILLILITERS: VARIES
EX) SIG: AMPICILLIN 375 MG
i TAB Q12H
QUANTITY: 30
LETS SAY FOR INSTANCE THAT THE PHARMACY DOES NOT HAVE AMPICILLIN IN TABLETS ONLY IN LIQUID (AMPICILLIN 125MG/5ML). IF IT IS OKAY WITH DOCTOR TO SUBSTITUTE THE PATIENT MEDICATION IN LIQUID THEN HERE IS HOW WE SOLVE THIS.
:FIRST LETS SEE HOW MANY MG DOES A QUANTITY OF 30 TABLETS OF AMPICILLIN HAVE:
IF 1 TAB = 375 MG
THEN 30 TAB = X ----< 30 X 375 / 1 = 11250 MG
:LETS FIND OUT HOW MANY ML PER DOSE THE PATIENT NEEDS:
IF 125 MG = 5 ML
THEN 375 MG = X ---< 375 X 5 / 125 = 15 ML TO GIVE PATIENT
:NOW LETS FIND OUT THE FULL LIQUID QUANTITY TO DISPENSE:
IF 125 MG = 5 ML
THEN 11250 MG = X ---< 11250 X 5 / 125 = 450 ML IN TOTAL
Q12H / EVERY 12 HOURS> MEANS TO TAKE MED ( 24 / 12 = 2X A DAY)
SO THE PATIENT WILL TAKE 15 ML OF AMPICILLIN TWICE A DAY, THE DAY SUPPLY WOULD BE 450 ML / 15 ML = 30 DAYS