Naplex Calculation practice all Exam questions with Correct answers
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Course
Naplex Calculation
Institution
Naplex Calculation
CALCULATIONS - ANSWER-CALCULATIONS
A patient is taking 2 calcium carbonate tablets once daily. Each weighs 1,500 mg total (non-elemental) weight. She wishes to trade her calcium tablets for the citrate form. How many 750 mg citrate tablets (by weight) will she need to provide the same daily dose...
Naplex Calculation practice all Exam questions
with Correct answers
CALCULATIONS - ANSWER-CALCULATIONS
A patient is taking 2 calcium carbonate tablets once daily. Each weighs 1,500 mg total
(non-elemental) weight. She wishes to trade her calcium tablets for the citrate form.
How many 750 mg citrate tablets (by weight) will she need to provide the same daily
dose? (Answer must be numeric; no units or commas; round final answer to the nearest
WHOLE tablet.) - ANSWER-8
(Pg 76)
A pharmacist dissolves 4 ketoconazole tablets, each containing 200 mg, into a ointment
liquid base to prepare 45 mL of a topical solution. What is the percentage strength (w/v)
of ketoconazole in the prescription? (Answer must be numeric; no units or commas;
include a leading zero when answer is less than 1; round final answer to the nearest
TENTH.) - ANSWER-1.8
pg 19
Using the total energy expenditure (TEE) equation, calculate the total non-protein
caloric requirement for a patient with third degree burns on 50% of his body (stress
factor 1.7). The patient is a 58 year old male who weighs 190 pounds and measures
5'11" in height. Activity factor is 1.2. The BEE for this patient is 1,764 kcal/day,
calculated using the Harris-Benedict equation. (Answer must be numeric; no units or
commas; round final answer to the nearest WHOLE number.) - ANSWER-3599
Pg 49-50
A pharmacist has calculated that a patient requires 30 mmol of phosphate and 80 mEq
of potassium to be added to the PN. How many milliliters of potassium phosphate and
how many milliliters of potassium chloride will be required? [K-Phos is 3 mmol
Phosphate with 4.4 mEq K per mL and KCl is 2 mEq/K per mL.]
Answer
A
5 mL potassium phosphate and 22 mL potassium chloride
B
15 mL potassium phosphate and 14 mL potassium chloride
C
10 mL potassium phosphate and 18 mL potassium chloride
D
11 mL potassium phosphate and 6 mL potassium chloride
E
18 mL potassium phosphate and 11 mL potassium chloride - ANSWER-C
,Pg 58
Richard Steinberg is admitted to the hospital. His medication orders are as follows:
Medication Orders:
2/16
Norvasc 10 mg PO daily
D5 1/2NS +
20 mEq KCl at 50 ml/hr
Protonix 40 mg daily
Lovenox 40 mg daily
Atenolol 100 mg PO daily
2/17
D/C IV fluid from 2/16
Potassium chloride 20 mEq PO BID
Norvasc 10 mg PO daily
D5 1/2NS at 50 ml/hr
Protonix 40 mg daily
Lovenox 40 mg daily
Atenolol 100 mg PO daily
2/18:
D/C IV fluid from 2/17
D/C KCl PO
NS 1 liter +
7 mEq Ca gluconate at 40 mL/hr
Norvasc 10 mg PO daily
Protonix 40 mg daily
Lovenox 40 mg daily
Atenolol 100 mg PO daily
Question:
On February 16th, Mr. Steinberg was off the floor for procedures and tests most of the
morning and his 1 liter bag of IV fluid + KCl was not started until 1300. The physician
wants the patient to receive the entire 20 mEq of potassium today. What rate (mL/hr) sh
- ANSWER-91
By the time the 1 liter bag is hung at 1300, there are 11 hours left in the day: 1,000 mL /
11 hours = 90.909 mL/hr (round to 91 mL/hr per instructions). Potassium chloride is a
high-risk medication. Always verify that a safe concentration and rate are being infused
based on the type of line available and clinical status of the patient.
,A pharmacist needs to meet 736 calories using 20% lipids. How many mL are required?
(Answer must be numeric; no units or commas.) - ANSWER-368
Pg 55
The total energy expenditure (TEE) using nonprotein calories for a patient is 2,645
kcal/day. The patient is receiving 1,526 kcal from dextrose and 890 kcal from protein.
How many kcal should be provided by the lipids? (Answer must be numeric; no units or
commas.) - ANSWER-1119
Pg 55
Martin Syde is a 73 year-old male who weighs 205 pounds. What is his CrCl using the
Cockcroft-Gault equation? (Answer must be numeric; no units or commas; round final
answer to the nearest WHOLE number.)
Labs:
Na (mEq/L) = 140 (135 - 145)
K (mEq/L) = 4.5 (3.5 - 5)
Cl (mEq/L) = 101 (95 - 103)
HCO3 (mEq/L) = 25 (24 - 30)
BUN (mg/dL) = 20 (7 - 20)
SCr (mg/dL) = 1.4 (0.6 - 1.3)
Glucose (mg/dL) = 122 (100 - 125)
Ca (mg/dL) = 8.9 (8.5 - 10.5)
Mg (mEq/L) = 2.1 (1.3 - 2.1)
PO4 (mg/dL) = 3.1 (2.3 - 4.7)
A1C (%) = 9.8
INR = 0.9 (0 - 1.2) - ANSWER-62
Pg. 41
Since the patient's height is not provided in the case, the only weight available to use in
the Cockcroft-Gault equation is the patient's total body weight.
After compounding a PN formula, the pharmacist notes that the solution is hazy and
there is a precipitate visible when the bag is agitated. The precipitate is most likely to be
which of the following?
Answer
A
KCl
B
NaPO4
C
MgCl
D
CaPO4
E
NaCl - ANSWER-D
, g. 59
How many milligrams of sodium thiosulfate (M.W. = 158) are represented by 0.25
mmol? (Answer must be numeric; no units or commas; include a leading zero when
answer is less than 1; round final answer to the nearest TENTH.) - ANSWER-39.5
Pg. 35
How many milliliters (mL) of Mylanta suspension are contained in each dose of
prescription below?
Belladonna Tincture 30 mL
Phenobarbital 70 mL
Mylanta susp. qs. ad 200 mL
Sig 20 mL BID
Answer
A
2.5 mL Mylanta per dose
B
5 mL Mylanta per dose
C
10 mL Mylanta per dose
D
20 mL Mylanta per dose
E
40 mL Mylanta per dose - ANSWER-C
Pg. 13
A reconstituted solution containing 500 mg of ganciclovir in 20 mL of sterile water for
injection is added to 500 mL of 5% dextrose in water. The infusion is to be administered
over 2 hours. If the infusion set delivers 15 drops/mL, what should the flow rate be to
administer the bag over the designated time interval? - ANSWER-65
pg. 67
A hospital pharmacist receives a prescription for 3% saline for a patient in the Neuro
ICU. The premixed 3% saline bags that the pharmacy normally stocks are on
backorder. How many milliliters of 23.4% NaCl will need to be added to a 1 liter bag of
normal saline to prepare 3% saline for this patient? (MW of Na = 23; MW of Cl = 35.5).
(Answer must be numeric; no units or commas; round final answer to the nearest
TENTH.) - ANSWER-102.9
pg. 29
Richard Steinberg is admitted to the hospital. His medication orders are as follows:
Demographics/Vitals:
Age: 73 Weight: 185 lbs
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