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pht 100
chapter 8 part 3
Question | Answer |
---|---|
it's illegal to compound | commercially available products |
a counter balance is a 2-pan balance used for | larger weights (up to 5kg), has a sensitivity requiremetn in the range of +/- 100mg, & are used for bulk materials (not for compounding) |
ingredients & weights should be | placed on paper in C3 rx balancing |
a C3 balance is also known as | a "class a" balance |
weighing paper is for avoiding contact between the | tray & the ingredients |
weighing paper is also called | powder paper |
a digital electronic balance has a | single pan, it's easy to use, it's more accurate & expensive ($2,500+) |
digital electronic analytical balances have a capacity of | 100g & sensitivity as low as +/- 1mg |
the balances have polished brass with noncorrosive coating with | both metric & apothecary weights |
forceps are used to grasp small objects to avoid | hands natural oils which can change weight of objects |
hard rubber spatulas are often used for | corrosive material |
a plate is made of | ground glass that mixes compounds |
parchment paper can be | used if nonabsorbent |
mortar & pestle can be made of | corse grained porcelain or "wedwood" used for pulverizing |
smooth glass mortar & pestles are for | liquids & semisolids |
a compounding slab is also called | an "ointment slab" |
cylinders, pipettes, & beakers can be | glass or polypropylene |
a conical cylinders is | wide topped & narrow based or cylindrical |
conicals are | metric & apothecary |
cylinders are calibrated in | metric units (more accurate) |
beakers are less accurate than cylinders and measure | large liquid volumes when precision isn't necessary |
pipettes measure liquids less than | 1.5mL |
hoods, masks, & gowns are used when | preparing powders |
there are capsule | machines & tablet presses |
autoclaves sterilize | instruments |
incubators culture | products |
minimum compounding requirements are | hairnets, lab coats, & gloves |
hazard requirements are | goggles, masks, double gowns, & eyewashe stations |
usp chpt. 795 specifies to wash hands first, to dispose | gloves after, & keep food out of the staging area |
electronical balances are | prefered, must be perfectly leveled, warmed & calibrated up for use, locked when not used, & cleaned afterwards |
C3 rx balance is enough for | occasional use |
measurement error is | expected sometimes |
allowances are made for | some %age errors |
%age error formula is | error amount/desired amountX100 |
error %age is an acceptable range of | variations over/under measurement |
must work within an | acceptable error range |
use the smallest device that holds the required | volume & measure at eye level at the bottom of the meniscus |
the meniscus is the | moon-shaped/concave liquid appearance in a cylinder |
to compound, techs should get a | master control record, ingredients, equipment, & mixing directions |
most have uninterrupted | adequate time |
master control record or pharmacists can give | the best mixing techniques |
comminution is the process of | reducing things to fine particles |
trituration rubs or grinds things to get | fine particles like with mortar and pestle |