Dosage Calculations Practice Exam Questions
With Correct Answers
Order: |Biaxin |200 |mg |p.o. |q |12 |h |for |a |child |who |weighs |45 |lbs. |
Have: |Biaxin |125 |mg |per |5 |mL
Biaxin |label |states |15 |mg/kg/day |in |two |equal |doses.
Is |this |dosage |safe? |- |CORRECT |ANSWER✔✔-1. |Convert |lbs |to |kgs. |45lbs |= |20.5 |kg
2. |Calculate |the |recommended |dose |per |day. |A |child |weighing |20.5 |kg |can |have |307.5 |mg |PER |
DAY. |So, |divide |307.5 |by |2 |to |get |a |single |dose. |So, |the |maximum |single |dose |is |153.75 |mg.
3. |NO, |the |ordered |dose |is |not |safe. |The |doctor |ordered |200 |mg |which |is |more |than |153.75 |
mg.
How |many |mcg |in |a |mg? |- |CORRECT |ANSWER✔✔-1000
Order: |D5LR |1250 |mL |IV |over |8 |hours.
What |is |the |infusion |rate |in |mL/h? |- |CORRECT |ANSWER✔✔-Answer: |156 |mL/h
Divide |1250 |by |8
156.25 |=> |156
,Order: |Amoxil |200 |mg |q |8 |h
Have: |50 |mg/ml
Label: |20 |to |40 |mg/kg/day |in |divided |doses |every |8 |hours.
The |patient |weighs |10 |kg. |Is |this |order |safe? |- |CORRECT |ANSWER✔✔-1. |First, |calculate |the |
minimum |and |maximum |dose |per |day. |The |minimum |amount |would |be |200 |mg. |(20 |x |10) |The
|maximum |amount |would |be |400 |mg. |(40 |x |10)
2. |Now, |since |the |dose |is |given |every |8 |hours, |divide |the |minimum |and |maximum |by |3, |since |
3 |doses |can |be |given |in |one |day |(24 |hours). |The |minimum |single |dose |is |66.7 |mg, |and |the |
maximum |single |dose |is |133.3 |mg.
3. |NO, |the |ordered |dose |is |not |safe. |The |doctor |ordered |200 |mg |for |a |single |dose |which |is |
more |than |the |maximum |allowed |single |dose |of |133.3 |mg.
How |many |mL |in |a |teaspoon |(tsp)? |- |CORRECT |ANSWER✔✔-5
How |many |grams |are |in |a |kilogram? |- |CORRECT |ANSWER✔✔-1000
How |many |teaspoons |are |in |a |tablespoon? |- |CORRECT |ANSWER✔✔-3
How |many |ounces |are |in |a |pound? |- |CORRECT |ANSWER✔✔-16
How |many |pounds |are |in |a |kilogram? |- |CORRECT |ANSWER✔✔-2.2
, Convert |21.3 |kg |to |lbs. |- |CORRECT |ANSWER✔✔-46.86
Tridil |is |infusing |at |15 |mL/hr |on |an |infusion |pump. |The |drug |is |mixed |50 |mg |in |500 |mL |DsW. |
How |many |mcg/min |is |the |patient |receiving? |- |CORRECT |ANSWER✔✔-Answer: |25 |mcg/min
First, |convert |the |50 |mg |to |mcg. |50 |mg |= |50,000 |mcg
Now, |how |many |mcg |is |in |1 |mL?
50,000 |mcg/500 |mL |= |100 |mcg/mL
Now, |how |many |mcg/hr |is |the |pt |receiving?
100 |mcg |x |15 |mL |= |1,500 |mcg/hr
So, |1500 |mcg/60 |min |= |25 |mcg/min
How |many |mL |in |a |tablespoon |(T |or |tbs)? |- |CORRECT |ANSWER✔✔-15
How |many |mL |in |one |ounce? |- |CORRECT |ANSWER✔✔-30
Convert |0.3 |g |to |kg. |- |CORRECT |ANSWER✔✔-300
How |many |ounces |in |a |cup? |- |CORRECT |ANSWER✔✔-8
How |many |mL |in |a |cup? |- |CORRECT |ANSWER✔✔-240
Convert |22.2 |kg |to |lbs. |- |CORRECT |ANSWER✔✔-48.84 |lbs
With Correct Answers
Order: |Biaxin |200 |mg |p.o. |q |12 |h |for |a |child |who |weighs |45 |lbs. |
Have: |Biaxin |125 |mg |per |5 |mL
Biaxin |label |states |15 |mg/kg/day |in |two |equal |doses.
Is |this |dosage |safe? |- |CORRECT |ANSWER✔✔-1. |Convert |lbs |to |kgs. |45lbs |= |20.5 |kg
2. |Calculate |the |recommended |dose |per |day. |A |child |weighing |20.5 |kg |can |have |307.5 |mg |PER |
DAY. |So, |divide |307.5 |by |2 |to |get |a |single |dose. |So, |the |maximum |single |dose |is |153.75 |mg.
3. |NO, |the |ordered |dose |is |not |safe. |The |doctor |ordered |200 |mg |which |is |more |than |153.75 |
mg.
How |many |mcg |in |a |mg? |- |CORRECT |ANSWER✔✔-1000
Order: |D5LR |1250 |mL |IV |over |8 |hours.
What |is |the |infusion |rate |in |mL/h? |- |CORRECT |ANSWER✔✔-Answer: |156 |mL/h
Divide |1250 |by |8
156.25 |=> |156
,Order: |Amoxil |200 |mg |q |8 |h
Have: |50 |mg/ml
Label: |20 |to |40 |mg/kg/day |in |divided |doses |every |8 |hours.
The |patient |weighs |10 |kg. |Is |this |order |safe? |- |CORRECT |ANSWER✔✔-1. |First, |calculate |the |
minimum |and |maximum |dose |per |day. |The |minimum |amount |would |be |200 |mg. |(20 |x |10) |The
|maximum |amount |would |be |400 |mg. |(40 |x |10)
2. |Now, |since |the |dose |is |given |every |8 |hours, |divide |the |minimum |and |maximum |by |3, |since |
3 |doses |can |be |given |in |one |day |(24 |hours). |The |minimum |single |dose |is |66.7 |mg, |and |the |
maximum |single |dose |is |133.3 |mg.
3. |NO, |the |ordered |dose |is |not |safe. |The |doctor |ordered |200 |mg |for |a |single |dose |which |is |
more |than |the |maximum |allowed |single |dose |of |133.3 |mg.
How |many |mL |in |a |teaspoon |(tsp)? |- |CORRECT |ANSWER✔✔-5
How |many |grams |are |in |a |kilogram? |- |CORRECT |ANSWER✔✔-1000
How |many |teaspoons |are |in |a |tablespoon? |- |CORRECT |ANSWER✔✔-3
How |many |ounces |are |in |a |pound? |- |CORRECT |ANSWER✔✔-16
How |many |pounds |are |in |a |kilogram? |- |CORRECT |ANSWER✔✔-2.2
, Convert |21.3 |kg |to |lbs. |- |CORRECT |ANSWER✔✔-46.86
Tridil |is |infusing |at |15 |mL/hr |on |an |infusion |pump. |The |drug |is |mixed |50 |mg |in |500 |mL |DsW. |
How |many |mcg/min |is |the |patient |receiving? |- |CORRECT |ANSWER✔✔-Answer: |25 |mcg/min
First, |convert |the |50 |mg |to |mcg. |50 |mg |= |50,000 |mcg
Now, |how |many |mcg |is |in |1 |mL?
50,000 |mcg/500 |mL |= |100 |mcg/mL
Now, |how |many |mcg/hr |is |the |pt |receiving?
100 |mcg |x |15 |mL |= |1,500 |mcg/hr
So, |1500 |mcg/60 |min |= |25 |mcg/min
How |many |mL |in |a |tablespoon |(T |or |tbs)? |- |CORRECT |ANSWER✔✔-15
How |many |mL |in |one |ounce? |- |CORRECT |ANSWER✔✔-30
Convert |0.3 |g |to |kg. |- |CORRECT |ANSWER✔✔-300
How |many |ounces |in |a |cup? |- |CORRECT |ANSWER✔✔-8
How |many |mL |in |a |cup? |- |CORRECT |ANSWER✔✔-240
Convert |22.2 |kg |to |lbs. |- |CORRECT |ANSWER✔✔-48.84 |lbs
