HOSA Medical Math Chapter 5 Drug Dosages and Intravenous Calculations

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18 Terms

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gtt
Drop
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p.o.
Orally
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IM
Intramuscular
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IV
Intravenous
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q.4.h
Every 4 hours
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q.d.
Daily
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q.o.d.
Every other day
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b.i.d.
Twice a day
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t.i.d.
Three times daily
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q.i.d.
Four times daily
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p.r.n.
As needed
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stat.
immediately
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Dosage Formula
{(desired dose)/(on-hand dose)}*Vehicle=amount to give
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Short-Hand Dosage Formula
(D/H)*V=A
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Proportion Dosage Formula
(D/A)=(H/V)
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Rate of Flow Equation
(drop factor*amount of solution)/(time)=Rate of Flow
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Body Surface Area (metric)
Square Root of (height cm*weight kg)/3600
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Body Surface Area (American)
Square Root of (height in*weight lb)/3131