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Chap - 6
PharmacologyHSC1149
Question | Answer |
---|---|
there is no __ __ __ in administration of medications | margin of error |
it is possible for a small error in ___ to seriously harm a patient | arithmetic |
requires a working knowledge of basic arithmetic & meticulous care w/all calculations | safe dosage preparation |
check whether all measurements in same system, complete necessary calculations, & check accuracy/have someone else verify should be done when | the dosage ordered differs from dosage on hand |
two methods of calculating dosage | basic calculation & ratio/proportion |
requires only simple arithmetic; desired dosage over on-hand dosage x quantity of on-hand dose | basic calculation |
requires ability to determine an unknown, X; known unit of measure:known equivalent = desired unit of measure:unknown equivalent | ratio & proportion |
describes a relationship between 2 numbers | ratio |
consists of 2 ratios that are equal | proportion |
always __ each term in the equation | label |
the terms of each ratio must be in the same | sequence |
multiply the __ first and then the means | extremes |
take extra care with | decimals |
__ fractions to decimals | convert |
round off decimals to | one decimal place |
less than 1/2 tablets, more than 2 tablets, or more than 2mL for injection are unusual dosage that should always be question because they | are not within the normal limits |
neonate's __ __ is more permeable | blood-brain barrier |
neonate's total body water contributes a __ __ of his body weight | greater percentage |
in neonates renal function & some enzyme systems need for drug __ & __ are not fully developed | absorption; metabolism |
when preparing drug dosages for children it is important to always refer to recommended dosages as listed in | drug inserts, PDR, or AHFS Drug Information |
recommended dosages of drugs are often expressed in the references as a number of __ per unit of body weight, per unit of time. | milligrams |
there is no formula to guide in safe __ dosage | geriatric |
never leave the __ __ naked | decimal |
never place a decimal point and a __ after a whole number | zero |
avoid using decimals whenever __ __ can be used as alternatives | whole numbers |
if you have difficulty interpreting spelling of drug name or number used for dosage, or dosage seems inappropriate | always question the order |
when compared to a dosage for a typical adult, medications prescribed for children or older adults the dosage is | likely to be smaller |
a healthcare worker calculated that the patient should be administered 15.9mg the actual amount that will be ministered is | 16mg |
a calculated dosage should always be __ __ one decimal point | round up |
primary ethical principle of health care workers when calculating, preparing, & administering medications | "First, do no harm" |
pediatric dosages of medication are calculated based on the child's weight in | kilograms |
if a health care worker has difficulty interpreting the spelling/dosage of prescribed medication, it is their __ & __ __ to always ? physician/prescribing authority about the order | legal & ethical responsibility |
due to many medications being dispensed in unit dose form, a health care worker need to learn to calculate drug dosages because | a specific patient dosage may differ that dosage on hand |
it is important to place a zero before a decimal point in order to | prevent medication errors |