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The drop is an approximated unit of measure of volume, the amount dispensed as one drop from a dropper or drip chamber.It is often used in giving quantities of liquid drugs to patients, and occasionally in cooking and in organic synthesis.
English-speaking countries also used a system of units of fluid measure, or in modern terminology volume units, based on the apothecaries' system. Originally, the terms and symbols used to describe the volume measurements of liquids were the same as or similar to those used to describe weight measurements of solids [33] (for example, the pound by weight and the fluid pint were both referred to ...
Medication underdosing occurs commonly when physicians write prescriptions that are correct for a certain time, but fails to increase the dose as the patient needs (i.e. weight-based dosing in children, or increasing dose of chemotherapy drugs if a patient's condition worsens). [5]
As there are 60 minims in a fluid dram, [5]: C-5, C-7 using this equivalent for the dosage of medicine was no longer suitable. [20] Today's US teaspoon is equivalent to exactly 4.92892159375 ml, which is also 1 ⁄ 6 US fluid ounces, 1 + 1 ⁄ 3 US fluid drams, [ 5 ] : C-18 or 80 US minims. [ 5 ] :
nipperkin (measure for liquor, containing no more than 1/2 pint) tumblerful (10 fl oz or 2 gills or 2 teacupsful) apothecaries' approximate measures [9] teacupful = about 4 fl oz; wineglassful = about 2 fl oz; tablespoonful = about 1/2 fl oz; dessertspoonful = about 2 fl dr; teaspoonful = about 1 fl dr; drop = about minim; teacupful (5 fl oz ...
In pharmacology, the international unit (IU) is a unit of measurement for the effect or biological activity of a substance, for the purpose of easier comparison across similar forms of substances. International units are used to quantify vitamins and biologics ( hormones , some medications , vaccines , blood products and similar biologically ...
The minim (abbreviated min, ♏︎ or ♍︎) is a unit of volume in both the imperial and U.S. customary systems of measurement. Specifically, in the imperial system, it is 1 ⁄ 60 of an imperial fluid drachm [1] [2] or 1 ⁄ 480 of an imperial fluid ounce; in the U.S. customary system, it is 1 ⁄ 60 of a US customary fluid dram or 1 ⁄ 480 of a US customary fluid ounce.
An oral syringe is a measuring instrument used to accurately measure doses of liquid medication, expressed in millilitres (mL). They do not have threaded tips, because no needle or other device needs to be screwed onto them. The contents are simply squirted or sucked from the syringe directly into the mouth of the person or animal.