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Henke’s Med-Math Dosage Calculation Preparation & Administration 9th Edition By Susan Buchholz
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Henke’s Med-Math Dosage Calculation Preparation & Administration 9th Edition By Susan Buchholz
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Henke’s Med-Math Dosage Calculation Preparation & Administration 9th Edition By Susan Buchholz
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Henke’s Med-Math Dosage Calculation Preparation & Administration 9th Edition By Susan Buchholz
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Test Bank For Henke’s Med-Math Dosage CalculationPreparation & Administration 9th Edition By Susan
Buchholz
ratios - ANSWER:comparisons between two things
proportion - ANSWER:statement saying those two ratios are equal
formula - ANSWER:rule prescribing how to calculate a dosage
dimensional analysis - ANSWER:method based on the premise that any number can
be multiplied by one without changing its value
fraction method - ANSWER:uses two equivalent proportions to find the answer
drug dose calculation:step 1: - ANSWER:conversion of numbers to the same unit of
measurement
drug dose calculation: step 2: - ANSWER:using the preferred method, write the
problem on paper; check again to confirm that your calculations are correct
4 methods by which to calculate drug dosages for nonparenteral (oral) route of
administration: - ANSWER:1. ratio and proportion method
2. formulation method
3. dimensional analysis
4. fractions
nonparenteral - ANSWER:oral
drug quantities can be in: - ANSWER:tablets, capsules, milliliters, or another unit, and
each label has its own equivalents
sample drug label should include 8 things: - ANSWER:1. brand name (trade)
2. generic name
3: drug strength
4 drug form, route of administration if other than oral, total amount of medication in
the container, directions for reconstitution if necessary
5. manufacturer
6. National Drug Code (NDC)
7. expiration date
8. lot number
Ratio and proportion method: - ANSWER:uses ratios, which are comparisons
between two objects (numbers in this case) like 4 pieces of pepperoni pizza and 3
, pieces of cheese pizza are 4:3::8:6 or 4/3 = 8/6. Medication order is for 400 mg.
Available medication is 300 mg in 1mL. 300 mg/1mL = 400 mg/?mL
Formulation method: - ANSWER:involves stacking units that are the same and
multiplying by the unit requested.
desired dose: - ANSWER:equals the dosage that has been ordered or ordered dose
available dose - ANSWER:the dosage on hand
D = ? H = ? Q = ? - ANSWER:D = desired Dose
H = on hand or available amount in ordered units
Q = quantity in units given
dimensional analysis: - ANSWER:uses the ordered amount of a drug to multiply with
two equal quantities in different dimensions (units of measurement) to derive the
answer
dimensional analysis steps: - ANSWER:step 1: write the units of the dose ordered
step 2: write the units that are on the label and the unit that you plan to give the
patient
Mg (ordered) x ____ mL
_______________________ = mL (desired)
Mg for label (ordered)
conversion factor: - ANSWER:formula to change from one unit of measurement to
another
fraction method: - ANSWER:dosage on hand desired dose
________________ = _______________
dosage unit dose given
special calculations include: - ANSWER:pediatric and geriatric patients; their bodies
are either immature (pediatric) or weakened by the aging process (geriatric)
BSA: - ANSWER:body surface area, patient's weight or body surface to calculate for
the correct dosage; convert patient's weight from pounds to kilos and then multiply
that number by number of milligrams to determine the daily dosage
pediatric - ANSWER:infants and children
in pediatric population ____ is used to calculate dosages: - ANSWER:weight
in children, total body water content is ____ in a child than an adult -
ANSWER:higher
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