NAPLEX CALCULATION PRACTICE ALL
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
CALCULATIONSK-KANSWERKCALCULATIONS
AKpatientKisKtakingK2KcalciumKcarbonateKtabletsKonceKdaily.KEachKweighsK1,500KmgKtotalK(non-
elemental)Kweight.KSheKwishesKtoKtradeKherKcalciumKtabletsKforKtheKcitrateKform.KHowKmanyK750KmgKcitrat
eKtabletsK(byKweight)KwillKsheKneedKtoKprovideKtheKsameKdailyKdose?K(AnswerKmustKbeKnumeric;KnoKunitsKo
rKcommas;KroundKfinalKanswerKtoKtheKnearestKWHOLEKtablet.)K-KANSWERK8K
(PgK76)
AKpharmacistKdissolvesK4KketoconazoleKtablets,KeachKcontainingK200Kmg,KintoKaKointmentKliquidKbaseKtoKpr
epareK45KmLKofKaKtopicalKsolution.KWhatKisKtheKpercentageKstrengthK(w/v)KofKketoconazoleKinKtheKprescript
ion?K(AnswerKmustKbeKnumeric;KnoKunitsKorKcommas;KincludeKaKleadingKzeroKwhenKanswerKisKlessKthanK1;Kr
oundKfinalKanswerKtoKtheKnearestKTENTH.)K-KANSWERK1.8
pgK19
UsingKtheKtotalKenergyKexpenditureK(TEE)Kequation,KcalculateKtheKtotalKnon-
proteinKcaloricKrequirementKforKaKpatientKwithKthirdKdegreeKburnsKonK50%KofKhisKbodyK(stressKfactorK1.7).KT
heKpatientKisKaK58KyearKoldKmaleKwhoKweighsK190KpoundsKandKmeasuresK5'11"KinKheight.KActivityKfactorKisK
1.2.KTheKBEEKforKthisKpatientKisK1,764Kkcal/day,KcalculatedKusingKtheKHarris-
BenedictKequation.K(AnswerKmustKbeKnumeric;KnoKunitsKorKcommas;KroundKfinalKanswerKtoKtheKnearestKW
HOLEKnumber.)K-KANSWERK3599
PgK49-50
AKpharmacistKhasKcalculatedKthatKaKpatientKrequiresK30KmmolKofKphosphateKandK80KmEqKofKpotassiumKtoKb
eKaddedKtoKtheKPN.KHowKmanyKmillilitersKofKpotassiumKphosphateKandKhowKmanyKmillilitersKofKpotassiumKc
hlorideKwillKbeKrequired?K[K-
PhosKisK3KmmolKPhosphateKwithK4.4KmEqKKKperKmLKandKKClKisK2KmEq/KKperKmL.]
Answer
A
5KmLKpotassiumKphosphateKandK22KmLKpotassiumKchloride
,B
15KmLKpotassiumKphosphateKandK14KmLKpotassiumKchloride
C
10KmLKpotassiumKphosphateKandK18KmLKpotassiumKchloride
D
11KmLKpotassiumKphosphateKandK6KmLKpotassiumKchloride
E
18KmLKpotassiumKphosphateKandK11KmLKpotassiumKchlorideK-KANSWERKC
PgK58
RichardKSteinbergKisKadmittedKtoKtheKhospital.KHisKmedicationKordersKareKasKfollows:
Demographics/Vitals:
Age:K73KWeight:K185Klbs
BP:K145/92KmmHgKHR:K72KBPM
MedicationKOrders:
2/16
NorvascK10KmgKPOKdaily
D5K1/2NSK+K
20KmEqKKClKatK50Kml/hrK
ProtonixK40KmgKdaily
LovenoxK40KmgKdaily
AtenololK100KmgKPOKdaily
2/17
D/CKIVKfluidKfromK2/16
PotassiumKchlorideK20KmEqKPOKBID
NorvascK10KmgKPOKdaily
,D5K1/2NSKatK50Kml/hrK
ProtonixK40KmgKdaily
LovenoxK40KmgKdaily
AtenololK100KmgKPOKdaily
2/18:
D/CKIVKfluidKfromK2/17
D/CKKClKPO
NSK1KliterK+K
7KmEqKCaKgluconateKatK40KmL/hr
NorvascK10KmgKPOKdaily
ProtonixK40KmgKdaily
LovenoxK40KmgKdaily
AtenololK100KmgKPOKdaily
K
Question:
OnKFebruaryK16th,KMr.KSteinbergKwasKoffKtheKfloorKforKproceduresKandKtestsKmostKofKtheKmorningKandKhisK
1KliterKbagKofKIVKfluidK+KKClKwasKnotKstartedKuntilK1300.KTheKphysicianKwantsKtheKpatientKtoKreceiveKtheKenti
reK20KmEqKofKpotassiumKtoday.KWhatKrateK(mL/hr)KshK-KANSWERK91
ByKtheKtimeKtheK1KliterKbagKisKhungKatK1300,KthereKareK11KhoursKleftKinKtheKday:K1,000KmLK/K11KhoursK=K90.9
09KmL/hrK(roundKtoK91KmL/hrKperKinstructions).KPotassiumKchlorideKisKaKhigh-
riskKmedication.KAlwaysKverifyKthatKaKsafeKconcentrationKandKrateKareKbeingKinfusedKbasedKonKtheKtypeKofKl
ineKavailableKandKclinicalKstatusKofKtheKpatient.
AKpharmacistKneedsKtoKmeetK736KcaloriesKusingK20%Klipids.KHowKmanyKmLKareKrequired?K(AnswerKmustKbe
Knumeric;KnoKunitsKorKcommas.)K-KANSWERK368
PgK55
TheKtotalKenergyKexpenditureK(TEE)KusingKnonproteinKcaloriesKforKaKpatientKisK2,645Kkcal/day.KTheKpatientKi
sKreceivingK1,526KkcalKfromKdextroseKandK890KkcalKfromKprotein.KHowKmanyKkcalKshouldKbeKprovidedKbyKth
eKlipids?K(AnswerKmustKbeKnumeric;KnoKunitsKorKcommas.)K-KANSWERK1119
PgK55
, MartinKSydeKisKaK73Kyear-oldKmaleKwhoKweighsK205Kpounds.KWhatKisKhisKCrClKusingKtheKCockcroft-
GaultKequation?K(AnswerKmustKbeKnumeric;KnoKunitsKorKcommas;KroundKfinalKanswerKtoKtheKnearestKWHO
LEKnumber.)K
Labs:
NaK(mEq/L)K=K140K(135K-K145)K
KK(mEq/L)K=K4.5K(3.5K-K5)K
ClK(mEq/L)K=K101K(95K-K103)K
HCO3K(mEq/L)K=K25K(24K-K30)K
BUNK(mg/dL)K=K20K(7K-K20)K
SCrK(mg/dL)K=K1.4K(0.6K-K1.3)K
GlucoseK(mg/dL)K=K122K(100K-K125)K
CaK(mg/dL)K=K8.9K(8.5K-K10.5)K
MgK(mEq/L)K=K2.1K(1.3K-K2.1)K
PO4K(mg/dL)K=K3.1K(2.3K-K4.7)K
A1CK(%)K=K9.8K
INRK=K0.9K(0K-K1.2)K-KANSWERK62
Pg.K41
SinceKtheKpatient'sKheightKisKnotKprovidedKinKtheKcase,KtheKonlyKweightKavailableKtoKuseKinKtheKCockcroft-
GaultKequationKisKtheKpatient'sKtotalKbodyKweight.
AfterKcompoundingKaKPNKformula,KtheKpharmacistKnotesKthatKtheKsolutionKisKhazyKandKthereKisKaKprecipitat
eKvisibleKwhenKtheKbagKisKagitated.KTheKprecipitateKisKmostKlikelyKtoKbeKwhichKofKtheKfollowing?
Answer
A
KCl
B
NaPO4
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
CALCULATIONSK-KANSWERKCALCULATIONS
AKpatientKisKtakingK2KcalciumKcarbonateKtabletsKonceKdaily.KEachKweighsK1,500KmgKtotalK(non-
elemental)Kweight.KSheKwishesKtoKtradeKherKcalciumKtabletsKforKtheKcitrateKform.KHowKmanyK750KmgKcitrat
eKtabletsK(byKweight)KwillKsheKneedKtoKprovideKtheKsameKdailyKdose?K(AnswerKmustKbeKnumeric;KnoKunitsKo
rKcommas;KroundKfinalKanswerKtoKtheKnearestKWHOLEKtablet.)K-KANSWERK8K
(PgK76)
AKpharmacistKdissolvesK4KketoconazoleKtablets,KeachKcontainingK200Kmg,KintoKaKointmentKliquidKbaseKtoKpr
epareK45KmLKofKaKtopicalKsolution.KWhatKisKtheKpercentageKstrengthK(w/v)KofKketoconazoleKinKtheKprescript
ion?K(AnswerKmustKbeKnumeric;KnoKunitsKorKcommas;KincludeKaKleadingKzeroKwhenKanswerKisKlessKthanK1;Kr
oundKfinalKanswerKtoKtheKnearestKTENTH.)K-KANSWERK1.8
pgK19
UsingKtheKtotalKenergyKexpenditureK(TEE)Kequation,KcalculateKtheKtotalKnon-
proteinKcaloricKrequirementKforKaKpatientKwithKthirdKdegreeKburnsKonK50%KofKhisKbodyK(stressKfactorK1.7).KT
heKpatientKisKaK58KyearKoldKmaleKwhoKweighsK190KpoundsKandKmeasuresK5'11"KinKheight.KActivityKfactorKisK
1.2.KTheKBEEKforKthisKpatientKisK1,764Kkcal/day,KcalculatedKusingKtheKHarris-
BenedictKequation.K(AnswerKmustKbeKnumeric;KnoKunitsKorKcommas;KroundKfinalKanswerKtoKtheKnearestKW
HOLEKnumber.)K-KANSWERK3599
PgK49-50
AKpharmacistKhasKcalculatedKthatKaKpatientKrequiresK30KmmolKofKphosphateKandK80KmEqKofKpotassiumKtoKb
eKaddedKtoKtheKPN.KHowKmanyKmillilitersKofKpotassiumKphosphateKandKhowKmanyKmillilitersKofKpotassiumKc
hlorideKwillKbeKrequired?K[K-
PhosKisK3KmmolKPhosphateKwithK4.4KmEqKKKperKmLKandKKClKisK2KmEq/KKperKmL.]
Answer
A
5KmLKpotassiumKphosphateKandK22KmLKpotassiumKchloride
,B
15KmLKpotassiumKphosphateKandK14KmLKpotassiumKchloride
C
10KmLKpotassiumKphosphateKandK18KmLKpotassiumKchloride
D
11KmLKpotassiumKphosphateKandK6KmLKpotassiumKchloride
E
18KmLKpotassiumKphosphateKandK11KmLKpotassiumKchlorideK-KANSWERKC
PgK58
RichardKSteinbergKisKadmittedKtoKtheKhospital.KHisKmedicationKordersKareKasKfollows:
Demographics/Vitals:
Age:K73KWeight:K185Klbs
BP:K145/92KmmHgKHR:K72KBPM
MedicationKOrders:
2/16
NorvascK10KmgKPOKdaily
D5K1/2NSK+K
20KmEqKKClKatK50Kml/hrK
ProtonixK40KmgKdaily
LovenoxK40KmgKdaily
AtenololK100KmgKPOKdaily
2/17
D/CKIVKfluidKfromK2/16
PotassiumKchlorideK20KmEqKPOKBID
NorvascK10KmgKPOKdaily
,D5K1/2NSKatK50Kml/hrK
ProtonixK40KmgKdaily
LovenoxK40KmgKdaily
AtenololK100KmgKPOKdaily
2/18:
D/CKIVKfluidKfromK2/17
D/CKKClKPO
NSK1KliterK+K
7KmEqKCaKgluconateKatK40KmL/hr
NorvascK10KmgKPOKdaily
ProtonixK40KmgKdaily
LovenoxK40KmgKdaily
AtenololK100KmgKPOKdaily
K
Question:
OnKFebruaryK16th,KMr.KSteinbergKwasKoffKtheKfloorKforKproceduresKandKtestsKmostKofKtheKmorningKandKhisK
1KliterKbagKofKIVKfluidK+KKClKwasKnotKstartedKuntilK1300.KTheKphysicianKwantsKtheKpatientKtoKreceiveKtheKenti
reK20KmEqKofKpotassiumKtoday.KWhatKrateK(mL/hr)KshK-KANSWERK91
ByKtheKtimeKtheK1KliterKbagKisKhungKatK1300,KthereKareK11KhoursKleftKinKtheKday:K1,000KmLK/K11KhoursK=K90.9
09KmL/hrK(roundKtoK91KmL/hrKperKinstructions).KPotassiumKchlorideKisKaKhigh-
riskKmedication.KAlwaysKverifyKthatKaKsafeKconcentrationKandKrateKareKbeingKinfusedKbasedKonKtheKtypeKofKl
ineKavailableKandKclinicalKstatusKofKtheKpatient.
AKpharmacistKneedsKtoKmeetK736KcaloriesKusingK20%Klipids.KHowKmanyKmLKareKrequired?K(AnswerKmustKbe
Knumeric;KnoKunitsKorKcommas.)K-KANSWERK368
PgK55
TheKtotalKenergyKexpenditureK(TEE)KusingKnonproteinKcaloriesKforKaKpatientKisK2,645Kkcal/day.KTheKpatientKi
sKreceivingK1,526KkcalKfromKdextroseKandK890KkcalKfromKprotein.KHowKmanyKkcalKshouldKbeKprovidedKbyKth
eKlipids?K(AnswerKmustKbeKnumeric;KnoKunitsKorKcommas.)K-KANSWERK1119
PgK55
, MartinKSydeKisKaK73Kyear-oldKmaleKwhoKweighsK205Kpounds.KWhatKisKhisKCrClKusingKtheKCockcroft-
GaultKequation?K(AnswerKmustKbeKnumeric;KnoKunitsKorKcommas;KroundKfinalKanswerKtoKtheKnearestKWHO
LEKnumber.)K
Labs:
NaK(mEq/L)K=K140K(135K-K145)K
KK(mEq/L)K=K4.5K(3.5K-K5)K
ClK(mEq/L)K=K101K(95K-K103)K
HCO3K(mEq/L)K=K25K(24K-K30)K
BUNK(mg/dL)K=K20K(7K-K20)K
SCrK(mg/dL)K=K1.4K(0.6K-K1.3)K
GlucoseK(mg/dL)K=K122K(100K-K125)K
CaK(mg/dL)K=K8.9K(8.5K-K10.5)K
MgK(mEq/L)K=K2.1K(1.3K-K2.1)K
PO4K(mg/dL)K=K3.1K(2.3K-K4.7)K
A1CK(%)K=K9.8K
INRK=K0.9K(0K-K1.2)K-KANSWERK62
Pg.K41
SinceKtheKpatient'sKheightKisKnotKprovidedKinKtheKcase,KtheKonlyKweightKavailableKtoKuseKinKtheKCockcroft-
GaultKequationKisKtheKpatient'sKtotalKbodyKweight.
AfterKcompoundingKaKPNKformula,KtheKpharmacistKnotesKthatKtheKsolutionKisKhazyKandKthereKisKaKprecipitat
eKvisibleKwhenKtheKbagKisKagitated.KTheKprecipitateKisKmostKlikelyKtoKbeKwhichKofKtheKfollowing?
Answer
A
KCl
B
NaPO4
