2040 Module 3 Exam: Dosage Calculations TEST BANK
QUESTIONS AND CORRECT DETAILED ANSWERS\ACTUAL
EXAM COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% CORRECT VERIFIED SOLUTIONS) A NEW
UPDATED VERSION |ALREADY GRADED A+
A nurse is preparing to administer erythromycin 50 mg/kg/day
PO divided in equal doses every 6 hr to a toddler who weighs 32
lb. Available is
erythromycin suspension 200 mg/5 mL. How many mL should the
nurse administer per dose?
4.5 mL
Rationale:
1. 32 lb / 2.2 = 14.55 kg
2. 14.55 kg x 50 mg = 727.5 mg/day
3. 727. doses = 181.88 mg
4. (5 mL / 200 mg) x 181.88 mg = 4.547...
5. Round to tenth: 4.5 mL
A nurse is preparing to administer gentamicin to a client who weighs
165 lb. The medication reference recommends 2 mg/kg IM every 8
hr. How many mg should the nurse plan to administer per dose?
150 mg
Rationale:
1. 165 lb / 2.2 = 75 kg
2. 75 kg x 2 mg/kg = 150 mg
,A nurse is preparing to administer famotidine 0.5 mg/kg PO at
bedtime to a child who weighs 50 lb. How many mg should the
nurse administer per dose?
11.4 mg
Rationale:
1. 50 lb / 2.2 = 22.73 kg
2. 22.73 kg x 0.5 mg = 11.365 mg
3. Round to tenth: 11.4 mg
A nurse is preparing to administer cefaclor 40 mg/kg/day PO
divided in equal doses every 8 hr to a child who weighs 48 lb.
Available is cefaclor suspension 375 mg/5 mL. How many mL
should the nurse administer per dose?
3.9 mL
Rationale:
1. 48 lb / 2.2 = 21.82 kg
2. 21.82 kg x 40 mg = 872.8 mg/day
3. 872. doses = 290.93 mg
4. (5 mL / 375 mg) x 290.93 mg = 3.879...
5. Round to tenth: 3.9 mL
,A nurse is preparing to administer amikacin IM to a client who weighs
176 lb. The safe dosage range is 7.5 to 15 mg/kg/day divided every 12
hr. What is the maximum safe dose the nurse should expect to
administer per day?
1200 mg
Rationale:
1. 176 lb / 2.2 = 80 kg
2. Max Daily: 80 kg x 15 mg/kg = 1,200 mg/day
A nurse is converting a toddler's weight from lb to kg. If the toddler
weighs 20 lb 8 oz, what is the toddler's weight in kg?
9.3 kg
Rationale:
1. 8 oz / 16 = 0.5 lb
2. 20.5 lb / 2.2 = 9.318... kg
3. Round to tenth: 9.3 kg
A nurse is preparing to administer potassium gluconate 2 mEq/kg/day
PO divided equally every 12 hr to a child who weighs 50 lb. How
many mEq
should the nurse administer per dose?
22.7 mEq
Rationale:
1. 50 lb / 2.2 = 22.73 kg
2. 22.73 kg x 2 mEq = 45.46 mEq/day
3. 45. doses = 22.73 mEq
4. Round to tenth: 22.7 mEq
, A nurse is preparing to administer acetaminophen 15 mg/kg PO to
a child who weighs 44 lb. Available is 160 mg/5 mL. How many mL
should the nurse administer?
9.4 mL
Rationale:
1. 44 lb / 2.2 = 20 kg
2. 20 kg x 15 mg = 300 mg
3. (5 mL / 160 mg) x 300 mg = 9.375 mL
4. Round to tenth: 9.4 mL
A nurse is preparing to administer acyclovir 5 mg/kg IV q8h to a
child weighing 55 lb. Available is 50 mg/mL. How many mL per
dose?
2.5 mL
Rationale:
1. 55 lb / 2.2 = 25 kg
2. 25 kg x 5 mg = 125 mg
3. 125 mg / 50 mg/mL = 2.5 mL
A nurse is preparing to administer ceftriaxone 100 mg/kg/day IV
divided q12h to a child weighing 22 lb. How many mg per dose?
500 mg
Rationale:
1. 22 lb / 2.2 = 10 kg
2. 10 kg x 100 mg = 1,000 mg/day
3. 1, doses = 500 mg
QUESTIONS AND CORRECT DETAILED ANSWERS\ACTUAL
EXAM COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% CORRECT VERIFIED SOLUTIONS) A NEW
UPDATED VERSION |ALREADY GRADED A+
A nurse is preparing to administer erythromycin 50 mg/kg/day
PO divided in equal doses every 6 hr to a toddler who weighs 32
lb. Available is
erythromycin suspension 200 mg/5 mL. How many mL should the
nurse administer per dose?
4.5 mL
Rationale:
1. 32 lb / 2.2 = 14.55 kg
2. 14.55 kg x 50 mg = 727.5 mg/day
3. 727. doses = 181.88 mg
4. (5 mL / 200 mg) x 181.88 mg = 4.547...
5. Round to tenth: 4.5 mL
A nurse is preparing to administer gentamicin to a client who weighs
165 lb. The medication reference recommends 2 mg/kg IM every 8
hr. How many mg should the nurse plan to administer per dose?
150 mg
Rationale:
1. 165 lb / 2.2 = 75 kg
2. 75 kg x 2 mg/kg = 150 mg
,A nurse is preparing to administer famotidine 0.5 mg/kg PO at
bedtime to a child who weighs 50 lb. How many mg should the
nurse administer per dose?
11.4 mg
Rationale:
1. 50 lb / 2.2 = 22.73 kg
2. 22.73 kg x 0.5 mg = 11.365 mg
3. Round to tenth: 11.4 mg
A nurse is preparing to administer cefaclor 40 mg/kg/day PO
divided in equal doses every 8 hr to a child who weighs 48 lb.
Available is cefaclor suspension 375 mg/5 mL. How many mL
should the nurse administer per dose?
3.9 mL
Rationale:
1. 48 lb / 2.2 = 21.82 kg
2. 21.82 kg x 40 mg = 872.8 mg/day
3. 872. doses = 290.93 mg
4. (5 mL / 375 mg) x 290.93 mg = 3.879...
5. Round to tenth: 3.9 mL
,A nurse is preparing to administer amikacin IM to a client who weighs
176 lb. The safe dosage range is 7.5 to 15 mg/kg/day divided every 12
hr. What is the maximum safe dose the nurse should expect to
administer per day?
1200 mg
Rationale:
1. 176 lb / 2.2 = 80 kg
2. Max Daily: 80 kg x 15 mg/kg = 1,200 mg/day
A nurse is converting a toddler's weight from lb to kg. If the toddler
weighs 20 lb 8 oz, what is the toddler's weight in kg?
9.3 kg
Rationale:
1. 8 oz / 16 = 0.5 lb
2. 20.5 lb / 2.2 = 9.318... kg
3. Round to tenth: 9.3 kg
A nurse is preparing to administer potassium gluconate 2 mEq/kg/day
PO divided equally every 12 hr to a child who weighs 50 lb. How
many mEq
should the nurse administer per dose?
22.7 mEq
Rationale:
1. 50 lb / 2.2 = 22.73 kg
2. 22.73 kg x 2 mEq = 45.46 mEq/day
3. 45. doses = 22.73 mEq
4. Round to tenth: 22.7 mEq
, A nurse is preparing to administer acetaminophen 15 mg/kg PO to
a child who weighs 44 lb. Available is 160 mg/5 mL. How many mL
should the nurse administer?
9.4 mL
Rationale:
1. 44 lb / 2.2 = 20 kg
2. 20 kg x 15 mg = 300 mg
3. (5 mL / 160 mg) x 300 mg = 9.375 mL
4. Round to tenth: 9.4 mL
A nurse is preparing to administer acyclovir 5 mg/kg IV q8h to a
child weighing 55 lb. Available is 50 mg/mL. How many mL per
dose?
2.5 mL
Rationale:
1. 55 lb / 2.2 = 25 kg
2. 25 kg x 5 mg = 125 mg
3. 125 mg / 50 mg/mL = 2.5 mL
A nurse is preparing to administer ceftriaxone 100 mg/kg/day IV
divided q12h to a child weighing 22 lb. How many mg per dose?
500 mg
Rationale:
1. 22 lb / 2.2 = 10 kg
2. 10 kg x 100 mg = 1,000 mg/day
3. 1, doses = 500 mg
