True or false: An instruction written as mg/kg/day gives the amount for each individual administration.
3 Weight-Based Dosing and Safe Dose Ranges Online Quiz Questions
Use this free practice quiz with 20 questions to review 3 Weight-Based Dosing and Safe Dose Ranges, test your knowledge, and prepare for your next test or exam.
A hypothetical order is 5 mg/kg/dose for a patient weighing 18 kg. What is the amount in one dose?
- A
90 mg per dose
- B
90 mg per day
- C
3.6 mg per dose
- D
23 mg per dose
A patient's measured weight is 44 lb. Using the conversion formula in the material, what is the weight in kilograms?
A hypothetical regimen is 15 mg/kg/day divided every 8 hours for a patient weighing 18 kg. What is the amount per dose?
- A
45 mg per dose
- B
90 mg per dose
- C
270 mg per dose
- D
810 mg per dose
True or false: A weight-based dose is safe whenever its arithmetic is correct.
- A
True
- B
False
When checking a calculated regimen against a medication reference, which actions are appropriate? Select all that apply.
- A
Compare a dose per administration with a per-dose range.
- B
Compare a dose per administration directly with a total daily range.
- C
Check any stated maximum single or daily dose.
- D
Assume a dose is safe if it falls within any range found for the medication.
A patient's weight is known, but the medication and indication have not been confirmed. Which approach to selecting a safe dose range is appropriate?
- A
Use a range calculated from weight alone.
- B
Assume the same range applies regardless of indication or route.
- C
Use a current, reliable reference that matches the medication and relevant clinical details.
- D
Choose the broadest range available for the medication.
A hypothetical instruction is 12 mg/kg/day for a patient weighing 16 kg. What is the total daily amount?
A daily dose must be divided into administrations, but the prescribed frequency is unclear. What should be done before calculating the amount per dose?
- A
Choose a typical schedule and calculate using that assumption.
- B
Pause and seek clarification about the intended schedule before calculating.
- C
Use the patient's weight to infer the missing schedule.
- D
Calculate a daily amount and treat it as the amount for each administration.
Which situations call for pausing and seeking clarification or appropriate review rather than proceeding based on an assumption? Select all that apply.
- A
The current weight or its units are unclear.
- B
The calculated amount is within a matching range and all required details are confirmed.
- C
The dose exceeds a stated maximum dose.
- D
The calculated dose is inconsistent with the prescribed schedule.
A hypothetical reference sets a maximum of 18 mg/kg/day for a patient weighing 18 kg. If the daily maximum is divided into three equal doses, what is the maximum amount per dose corresponding to that daily limit?
- A
54 mg per dose
- B
90 mg per dose
- C
324 mg per dose
- D
108 mg per dose
For arithmetic practice, a hypothetical reference allows 3–5 mg/kg/dose and sets a maximum of 18 mg/kg/day. A patient weighs 20 kg, and the hypothetical order is 80 mg every 6 hours. Calculate the per-dose range, the ordered total per day, and the daily maximum. State whether the order falls within both calculated limits, and note what else must be verified before applying this to an actual patient.
An order is scheduled every 8 hours. How many doses are scheduled in 24 hours?
- A
2 doses per day
- B
3 doses per day
- C
4 doses per day
- D
8 doses per day
For an order written as 5mg/kg/dose every 8 hours, the amount for one dose is calculated by multiplying the patient's weight in kilograms by 5mg/kg; the 8-hour interval sets the schedule, not the single-dose multiplication.
- A
True
- B
False
A patient weighs 14kg, and an order specifies 6mg/kg/dose. What is the amount for one dose?
A patient weighs 44lb. An order specifies 5mg/kg/dose. Using weight (kg)=weight (lb)÷2.2, what is the amount for one dose?
- A
20 mg per dose
- B
50 mg per dose
- C
100 mg per dose
- D
220 mg per dose
A patient weighs 20kg. The order is 12mg/kg/day, divided every 6 hours. What is the amount per dose?
A hypothetical reference allows 4–6mg/kg/dose every 8 hours and sets a maximum of 18mg/kg/day. For a patient weighing 18kg, an order is 90mg every 8 hours. Which conclusion is correct?
- A
The order is within both the per-dose range and the daily maximum.
- B
The order exceeds the per-dose range but is within the daily maximum.
- C
The order is within the per-dose range but exceeds the daily maximum.
- D
The order exceeds both the per-dose range and the daily maximum.
A dose calculation uses weight in kilograms multiplied by a prescribed amount in mg/kg/dose. After the kilogram units cancel, the result is expressed in .
Weight-based dosing may require additional clinical judgment for children with or obesity.