HESI DOSAGE CALCULATIONS
PRACTICE EXAM, HESI
PHARMACOLOGY REVIEW
QUESTIONS AND ANSWERS RATED
A+ | NEWLY UPDATED |
GUARANTEED PASS!!!
Anclientnwithncardiogenicnshocknweighsn220nlbnandnisnreceivingndopaminenatnthenratenofn3nmcg/kg/
minute.nThensolutionnstrengthnavailablenisndopaminen400nmgninn250nmlnofnD5W.nThennursenshouldn
setntheninfusionnpumpntondelivernhownmanynml/hour?n(Enternnumericnvaluenonly.nIfnroundingnisnre
quired,nroundntonthennearestntenth.)n-nCORRECTnANSWERSn11.3
First,nconvertnpoundsntonkg,n220nlbn:nXn=n2.2nlbn:n1nkgn=n100nkg.nNext,ncalculatenthendosagenpernmin
ute,n3nmcg/kg/minnxn100nkgn=n300nmcg/min.nConvertnmcg/minntonmcg/hour,n300nmcg/minnxn60n
min=18,000nmcg/hour.nConvertnmcg/hrntonmg/hour,n18,000nmcg/hrn=n18.0nmg/hour.nCalculatenth
enrate,n400nmgn:n250nmln=n18nmgn:nXnmln400Xn=n4500nXn=n11.25n=n11.3nml.nSo,n18nmg/11.3nmlnshoul
dnbeninfusednatn11.3nml/hour.
Anclientnwithnhypertensionnwhonweighsn72.4nkgnisnreceivingnanninfusionnofnnitroprussiden(Nipride)n
50nmgninnD5Wn250nmlnatn75nml/hour.nHownmanynmcg/kg/minutenisnthenclientnreceiving?n(Enternnu
mericnvaluenonly.nIfnroundingnisnrequired,nroundntonthennearestntenth.)n-nCORRECTnANSWERSn3.5
Calculatenthenmg/hourninfusing,n50nmgn:n250nmln=nXn:n75nmln250Xn=n3750nandnXn=n15nmg/hour.nNex
t,nconvertnmg/hrntonmcg/hour,n15nmg/hourn=n1nmgn/n1000nmcgn=n15,000nmcg/hour,nthenndividenb
yn60nminn=n250nmcg/minute.nLastly,n250nmcg/72.4nkg/minn=n3.45n=n3.5nmcg/kg/minute.
Anclientnwhonweighsn70nkgnisnreceivingnandopaminensolutionnofn800nmg/500nmlnnormalnsalinenatn5n
ml/hour.nHownmanynmcg/kg/minutenisnthenclientnreceiving?n(Enternnumericnvaluenonly.nIfnroundin
gnisnrequired,nroundntonthennearestntenth.)n-nCORRECTnANSWERSn1.9
,Tonchangenml/hourntonmcg/kg/minute,nusenthenformula:ndesirednraten(5nml/hour)n/nvolumenavaila
blen(500nml)nxndosenavailablen(800nmg)n=n8nmg/hour.nNext,nconvertnmilligrams/hourntonmcg/kg/mi
nute:nmgn(8)nxn1000n/nkgn(70)n/n60nminutesn=n1.904n=n1.9nmcg/kg/minute.
AnclientnisnreceivingnannIVnsolutionnofnsodiumnchloriden0.9%n(NormalnSaline)n250nmlnwithnamiodar
onen(Cordarone)n1ngramnatn17nml/hour.nHownmanynmg/minutenofnamiodaronenisninfusing?n(Entern
numericnvaluenonly.nIfnroundingnisnrequired,nroundntonthennearestntenth.)n-
nCORRECTnANSWERSnConvertngramsntonmg,n1ngramnequalsn1,000nmg.nUsingnrationandnproportionn-
n1,000nmgn:n250nmln::nXnmgn:n1mln250X=n1,000nsonXn=n4nmg/mlnisnthensolutionnconcentrationnofnami
odarone.nTheninfusionnraten(ml/hour)nxnconcentrationn(mg/ml)ndividednbyn60nminutes/hourn17nml
/hournxn4nmg/mln=n68/60n=n1.13n=n1.1nmg/minute.
Anclientnwhonweighsn176npoundsnisnreceivingnannIVninfusionnwithnesmololnhydrochloriden(Breviblo
c)natn48nml/hour.nThenIVnsolutionnisnlabelednwithnthenconcentrationnofnBreviblocn10nmg/ml.nHown
manynmcg/kg/minutenisnthenclientnreceiving?n(Enternnumericnvaluenonly.)n-
nCORRECTnANSWERSn100
Convertnpoundsntonkgnbyndividingn176npoundsnbyn2.2npoundsn=n80nkg.nConvertnthenIVnconcentratio
nnfromnmgntonmcg.n1nmgn:n1000nmcgn::n10nmgn:n10,000nmcg.nInfusionnraten(48nml/hour)nxnconcentr
ationn(10,000nmcg/ml)ndividednbyn60nminutes/hournxn80nkgn=n48nxn10,000ndividednbyn60nxn80n=n48
0,000n/n4800n=n100nmcg/kg/minute.
Thennursenisnpreparingnthenchange-of-
shiftnreportnfornanclientnwhonhasnan265nmlnsecondaryninfusionnthatnwasnstartedn2nhoursnagonatnanrat
enofn85nml/hournviananninfusionnpump.nThennursenshouldnreportnthatnhownmanynmlnremainntonbeni
nfusednbynthenon-comingnnurse?n(Enternnumericnvaluenonly.)n-nCORRECTnANSWERSn95
85nmlnxn2nhoursn=n170nmlnhasninfused.n265nmln(totalnamountntonbeninfused)n-
n170nmln(amountninfused)n=n95nmlnremainntonbeninfused.
,Anmalenclientnreceivesnanprescriptionnfornondansetronnhydrochloriden(Zofran)n4nmgnIVntonpreventn
postoperativennauseanafternanninguinalnhernianrepair.nThenmedicationnisnavailableninn2nmg/ml.nHo
wnmanynmlnshouldnthennursenadminister?n(Enternnumericnvaluenonly.)n-nCORRECTnANSWERSn2
Usenrationandnproportion,n4nmgn:nXnmln=n2nmgn:n1nmln2Xn=n4nXn=n2
ThennursenisnpreparingntonadministernHepatitisnBnVaccine,nRecombinantn(Energix-
B)n5nmcgnIMntonanschool-
agednchild.nThenvaccinenisnlabeled,n10nmcg/ml.nHownmanynmlnshouldnthennursenadminister?n(Enter
nnumericnvaluenonly.nIfnroundingnisnrequired,nroundntonthennearestntenth).n-
nCORRECTnANSWERSn1norn0.5
Usenrationandnproportion,n5nmcgn:nXnmln::n10nmcgn:n1mln
10Xn=n5nXn=n0.5nml
Anclient'sndailynPOnprescriptionnfornaripiprazolen(Abilify)nisnincreasednfromn15nmgnton30nmg.nThenm
edicationnisnavailableninn15nmgntablets,nandnthenclientnalreadynreceivednonentabletntoday.nHownma
nynadditionalntabletsnshouldnthennursenadministernsonthenclientnreceivesnthentotalnnewlynprescribe
dndosenfornthenday?n(Enternnumericnvaluenonly.)n-nCORRECTnANSWERSn1
30nmgn(totalndose)n-
n15nmgn(dosenalreadynadministered)n=n15nmgnthatnstillnneedsntonbenadministered.nUsingnthenDesire
d/Havenformula:n15nmg/15nmgn=n1ntablet
Atnthenendnofnthenshift,nthennursenisnrecordingnthenfluidnbalancenfornanclientnreceivingnancontinuous
ngastrostomyntuben(GT)nfeeding.nBasednonnthenclient'snrecords,nhownmanynmlnshouldnthennursenrec
ordnfornthentotalnfluidnbalancen(intaken-
noutput)nfornthenshiftnthatnstartednatn0700nandnendednatn1900?n(Enternnumericnvaluenonly.)n(Clickno
nneachnimagenassetnfornadditionalninformation.)n-nCORRECTnANSWERSn695
, Thentubenfeedingnisnadministerednatn75nml/hournforn11nhoursn(0700n-
n1800)nandnthennturnednoffnfornonenhournbecausenthenresidualnisngreaternthann200nml.n11nhoursnxn
75nml/hrn=n825nml.nThreendosesnofn20nmlnofnmedicationnarenadministered,nwithn10nmlnofnwaternus
edntonflushnthenGTnbeforenandnafterneachndose.n20nmlnxn3ndosesn=n60nml;n10nmln(flush)nxn2nxn3ndoses
n=n60nml;nson825nmln+n60nmln+n60nmln=n945nml.n250nmlnofnresidualnisnremovednandnnotnreplaced.n94
5nmln-n250nmln=n695nmlntotalnfluidnbalancen(Intaken-noutput).
Thennursenisnadministeringnan250nmillilitern(ml)nintravenousnsolutionntonbeninfusednovern2nhours.nH
ownmanynml/hournshouldnthennursenprogramntheninfusionnpump?n(Enternnumericnvaluenonly.)n-
nCORRECTnANSWERSn125
250nmln:n2nhoursn=nXnmln:n1nhourn250n=n2XnXn=n250ndividednbyn2n=n125nml/hr
Thennursenisnpreparingntonadministern0.25nmgnofnbumetaniden(Bumex)nIV.nThenmedicationnisnavaila
bleninnanvialnlabeledn1nmg/4nml.nHownmanynmlnofnmedicationnshouldnthennursenadminister?n(Entern
numericnvaluenonly.)n-nCORRECTnANSWERSn1
UsingnthenDesired/HavenxnVolumenformula:nDesiredn=n0.25nmgnHaven=n1nmgnVolumen=n4nmln0.25nm
g/1nmgnxn4nmln=n1nml
Anclientnwithnhypertensionnreceivesnanprescriptionnforncarteololn(Cartel)n7.5nmgnPOndaily.nThendrug
nisnavailableninn2.5nmgntablets.nHownmanyntabletsnshouldnthennursenadminister?n(Enternnumericnva
luenonly.)n-nCORRECTnANSWERSn3
UsingnD/H:n7.5nmgn/n2.5nmgn=n3ntablets
Thenhealthcarenprovidernprescribesntrimethoprim-sulfamethoxazolen(Bactrim-
DSnOralnSuspension)n120nmgnBIDnfornanchildnwithnbronchitis.nThenBactrimnbottlenisnlabeledn200nmg
/5ml.nHownmanynmlnshouldnthennursenadministernatneachndose?n(Enternnumericnvaluenonly.)n-
nCORRECTnANSWERSn3
PRACTICE EXAM, HESI
PHARMACOLOGY REVIEW
QUESTIONS AND ANSWERS RATED
A+ | NEWLY UPDATED |
GUARANTEED PASS!!!
Anclientnwithncardiogenicnshocknweighsn220nlbnandnisnreceivingndopaminenatnthenratenofn3nmcg/kg/
minute.nThensolutionnstrengthnavailablenisndopaminen400nmgninn250nmlnofnD5W.nThennursenshouldn
setntheninfusionnpumpntondelivernhownmanynml/hour?n(Enternnumericnvaluenonly.nIfnroundingnisnre
quired,nroundntonthennearestntenth.)n-nCORRECTnANSWERSn11.3
First,nconvertnpoundsntonkg,n220nlbn:nXn=n2.2nlbn:n1nkgn=n100nkg.nNext,ncalculatenthendosagenpernmin
ute,n3nmcg/kg/minnxn100nkgn=n300nmcg/min.nConvertnmcg/minntonmcg/hour,n300nmcg/minnxn60n
min=18,000nmcg/hour.nConvertnmcg/hrntonmg/hour,n18,000nmcg/hrn=n18.0nmg/hour.nCalculatenth
enrate,n400nmgn:n250nmln=n18nmgn:nXnmln400Xn=n4500nXn=n11.25n=n11.3nml.nSo,n18nmg/11.3nmlnshoul
dnbeninfusednatn11.3nml/hour.
Anclientnwithnhypertensionnwhonweighsn72.4nkgnisnreceivingnanninfusionnofnnitroprussiden(Nipride)n
50nmgninnD5Wn250nmlnatn75nml/hour.nHownmanynmcg/kg/minutenisnthenclientnreceiving?n(Enternnu
mericnvaluenonly.nIfnroundingnisnrequired,nroundntonthennearestntenth.)n-nCORRECTnANSWERSn3.5
Calculatenthenmg/hourninfusing,n50nmgn:n250nmln=nXn:n75nmln250Xn=n3750nandnXn=n15nmg/hour.nNex
t,nconvertnmg/hrntonmcg/hour,n15nmg/hourn=n1nmgn/n1000nmcgn=n15,000nmcg/hour,nthenndividenb
yn60nminn=n250nmcg/minute.nLastly,n250nmcg/72.4nkg/minn=n3.45n=n3.5nmcg/kg/minute.
Anclientnwhonweighsn70nkgnisnreceivingnandopaminensolutionnofn800nmg/500nmlnnormalnsalinenatn5n
ml/hour.nHownmanynmcg/kg/minutenisnthenclientnreceiving?n(Enternnumericnvaluenonly.nIfnroundin
gnisnrequired,nroundntonthennearestntenth.)n-nCORRECTnANSWERSn1.9
,Tonchangenml/hourntonmcg/kg/minute,nusenthenformula:ndesirednraten(5nml/hour)n/nvolumenavaila
blen(500nml)nxndosenavailablen(800nmg)n=n8nmg/hour.nNext,nconvertnmilligrams/hourntonmcg/kg/mi
nute:nmgn(8)nxn1000n/nkgn(70)n/n60nminutesn=n1.904n=n1.9nmcg/kg/minute.
AnclientnisnreceivingnannIVnsolutionnofnsodiumnchloriden0.9%n(NormalnSaline)n250nmlnwithnamiodar
onen(Cordarone)n1ngramnatn17nml/hour.nHownmanynmg/minutenofnamiodaronenisninfusing?n(Entern
numericnvaluenonly.nIfnroundingnisnrequired,nroundntonthennearestntenth.)n-
nCORRECTnANSWERSnConvertngramsntonmg,n1ngramnequalsn1,000nmg.nUsingnrationandnproportionn-
n1,000nmgn:n250nmln::nXnmgn:n1mln250X=n1,000nsonXn=n4nmg/mlnisnthensolutionnconcentrationnofnami
odarone.nTheninfusionnraten(ml/hour)nxnconcentrationn(mg/ml)ndividednbyn60nminutes/hourn17nml
/hournxn4nmg/mln=n68/60n=n1.13n=n1.1nmg/minute.
Anclientnwhonweighsn176npoundsnisnreceivingnannIVninfusionnwithnesmololnhydrochloriden(Breviblo
c)natn48nml/hour.nThenIVnsolutionnisnlabelednwithnthenconcentrationnofnBreviblocn10nmg/ml.nHown
manynmcg/kg/minutenisnthenclientnreceiving?n(Enternnumericnvaluenonly.)n-
nCORRECTnANSWERSn100
Convertnpoundsntonkgnbyndividingn176npoundsnbyn2.2npoundsn=n80nkg.nConvertnthenIVnconcentratio
nnfromnmgntonmcg.n1nmgn:n1000nmcgn::n10nmgn:n10,000nmcg.nInfusionnraten(48nml/hour)nxnconcentr
ationn(10,000nmcg/ml)ndividednbyn60nminutes/hournxn80nkgn=n48nxn10,000ndividednbyn60nxn80n=n48
0,000n/n4800n=n100nmcg/kg/minute.
Thennursenisnpreparingnthenchange-of-
shiftnreportnfornanclientnwhonhasnan265nmlnsecondaryninfusionnthatnwasnstartedn2nhoursnagonatnanrat
enofn85nml/hournviananninfusionnpump.nThennursenshouldnreportnthatnhownmanynmlnremainntonbeni
nfusednbynthenon-comingnnurse?n(Enternnumericnvaluenonly.)n-nCORRECTnANSWERSn95
85nmlnxn2nhoursn=n170nmlnhasninfused.n265nmln(totalnamountntonbeninfused)n-
n170nmln(amountninfused)n=n95nmlnremainntonbeninfused.
,Anmalenclientnreceivesnanprescriptionnfornondansetronnhydrochloriden(Zofran)n4nmgnIVntonpreventn
postoperativennauseanafternanninguinalnhernianrepair.nThenmedicationnisnavailableninn2nmg/ml.nHo
wnmanynmlnshouldnthennursenadminister?n(Enternnumericnvaluenonly.)n-nCORRECTnANSWERSn2
Usenrationandnproportion,n4nmgn:nXnmln=n2nmgn:n1nmln2Xn=n4nXn=n2
ThennursenisnpreparingntonadministernHepatitisnBnVaccine,nRecombinantn(Energix-
B)n5nmcgnIMntonanschool-
agednchild.nThenvaccinenisnlabeled,n10nmcg/ml.nHownmanynmlnshouldnthennursenadminister?n(Enter
nnumericnvaluenonly.nIfnroundingnisnrequired,nroundntonthennearestntenth).n-
nCORRECTnANSWERSn1norn0.5
Usenrationandnproportion,n5nmcgn:nXnmln::n10nmcgn:n1mln
10Xn=n5nXn=n0.5nml
Anclient'sndailynPOnprescriptionnfornaripiprazolen(Abilify)nisnincreasednfromn15nmgnton30nmg.nThenm
edicationnisnavailableninn15nmgntablets,nandnthenclientnalreadynreceivednonentabletntoday.nHownma
nynadditionalntabletsnshouldnthennursenadministernsonthenclientnreceivesnthentotalnnewlynprescribe
dndosenfornthenday?n(Enternnumericnvaluenonly.)n-nCORRECTnANSWERSn1
30nmgn(totalndose)n-
n15nmgn(dosenalreadynadministered)n=n15nmgnthatnstillnneedsntonbenadministered.nUsingnthenDesire
d/Havenformula:n15nmg/15nmgn=n1ntablet
Atnthenendnofnthenshift,nthennursenisnrecordingnthenfluidnbalancenfornanclientnreceivingnancontinuous
ngastrostomyntuben(GT)nfeeding.nBasednonnthenclient'snrecords,nhownmanynmlnshouldnthennursenrec
ordnfornthentotalnfluidnbalancen(intaken-
noutput)nfornthenshiftnthatnstartednatn0700nandnendednatn1900?n(Enternnumericnvaluenonly.)n(Clickno
nneachnimagenassetnfornadditionalninformation.)n-nCORRECTnANSWERSn695
, Thentubenfeedingnisnadministerednatn75nml/hournforn11nhoursn(0700n-
n1800)nandnthennturnednoffnfornonenhournbecausenthenresidualnisngreaternthann200nml.n11nhoursnxn
75nml/hrn=n825nml.nThreendosesnofn20nmlnofnmedicationnarenadministered,nwithn10nmlnofnwaternus
edntonflushnthenGTnbeforenandnafterneachndose.n20nmlnxn3ndosesn=n60nml;n10nmln(flush)nxn2nxn3ndoses
n=n60nml;nson825nmln+n60nmln+n60nmln=n945nml.n250nmlnofnresidualnisnremovednandnnotnreplaced.n94
5nmln-n250nmln=n695nmlntotalnfluidnbalancen(Intaken-noutput).
Thennursenisnadministeringnan250nmillilitern(ml)nintravenousnsolutionntonbeninfusednovern2nhours.nH
ownmanynml/hournshouldnthennursenprogramntheninfusionnpump?n(Enternnumericnvaluenonly.)n-
nCORRECTnANSWERSn125
250nmln:n2nhoursn=nXnmln:n1nhourn250n=n2XnXn=n250ndividednbyn2n=n125nml/hr
Thennursenisnpreparingntonadministern0.25nmgnofnbumetaniden(Bumex)nIV.nThenmedicationnisnavaila
bleninnanvialnlabeledn1nmg/4nml.nHownmanynmlnofnmedicationnshouldnthennursenadminister?n(Entern
numericnvaluenonly.)n-nCORRECTnANSWERSn1
UsingnthenDesired/HavenxnVolumenformula:nDesiredn=n0.25nmgnHaven=n1nmgnVolumen=n4nmln0.25nm
g/1nmgnxn4nmln=n1nml
Anclientnwithnhypertensionnreceivesnanprescriptionnforncarteololn(Cartel)n7.5nmgnPOndaily.nThendrug
nisnavailableninn2.5nmgntablets.nHownmanyntabletsnshouldnthennursenadminister?n(Enternnumericnva
luenonly.)n-nCORRECTnANSWERSn3
UsingnD/H:n7.5nmgn/n2.5nmgn=n3ntablets
Thenhealthcarenprovidernprescribesntrimethoprim-sulfamethoxazolen(Bactrim-
DSnOralnSuspension)n120nmgnBIDnfornanchildnwithnbronchitis.nThenBactrimnbottlenisnlabeledn200nmg
/5ml.nHownmanynmlnshouldnthennursenadministernatneachndose?n(Enternnumericnvaluenonly.)n-
nCORRECTnANSWERSn3
