ATI Dosage Calculation
Access The Exact Questions for ATI Dosage Calculation
💯 100% Pass Rate guaranteed
🗓️ Unlock for 1 Month
Rated 4.8/5 from over 1000+ reviews
- Unlimited Exact Practice Test Questions
- Trusted By 200 Million Students and Professors
What’s Included:
- Unlock Actual Exam Questions and Answers for ATI Dosage Calculation on monthly basis
- Well-structured questions covering all topics, accompanied by organized images.
- Learn from mistakes with detailed answer explanations.
- Easy To understand explanations for all students.
Free ATI Dosage Calculation Questions
Jamal is ordered acyclovir. The dosage range is 40 - 80 mg/kg in 3 divided doses. He weighs 37 kg. What is the range, in mg, that Jamal can safely take per day?
Select one:
-
493 - 987 mg
-
672 - 1,345 mg
-
1,480 - 2,960 mg
-
3,256 - 6,512 mg
Explanation
Correct Answer:
C. 1,480 - 2,960 mg
Explanation of Correct Answer:
Calculate the daily dosage range for Jamal:
The minimum dose per day: 40 mg × 37 kg = 1,480 mg.
The maximum dose per day: 80 mg × 37 kg = 2,960 mg.
Determine the dosage range per day:
Jamal can safely take between 1,480 mg and 2,960 mg per day.
Why the Other Options are Incorrect:
A. 493 - 987 mg is too low for the prescribed dosage range based on Jamal's weight.
B. 672 - 1,345 mg is incorrect because it does not match the appropriate range for his weight.
D. 3,256 - 6,512 mg is too high and does not correspond to the correct daily range.
Summary:
Jamal can safely take 1,480 mg to 2,960 mg of acyclovir per day. The correct answer is C. 1,480 - 2,960 mg.
- 50 mL
Explanation
Correct Answer: 50 mL
Step 1 — Convert weight: 219 lb ÷ 2.2 = 99.5 kg.
Step 2 — Calculate dose: 99.5 kg × 5 mg/kg = 497.5 mg.
Step 3 — Calculate volume: (497.5 mg ÷ 10 mg) × 1 mL = 49.75 mL ≈ 50 mL.
A patient is receiving dopamine at 4.3 mcg/kg/min. The dopamine concentration is 800 mg in 250 mL of 0.9% NS. The patient's weight is 75 kg. Calculate the flow rate in mL/hr using an IV pump. (Round to the nearest tenth)
Select one:
-
4.8 mL/hr
-
6.0 mL/hr
-
7.5 mL/hr
-
9.2 mL/hr
Explanation
Correct Answer:
B. 6.0 mL/hr
Explanation of Correct Answer:
Step 1: Calculate the total mcg/min ordered
4.3mcg/kg/min×75 kg=322.5mcg/min
Step 2: Convert dopamine concentration from mg to mcg
800 mg=800,000 mcg
800,000÷250mL=3200 mcg/mL
Step 3: Calculate mL/min
322.5÷3200=0.10078mL/min
Step 4: Convert to mL/hr
0.10078×60=6.0 mL/hr
0.10078×60=6.0mL/hr
Why the Other Options are Incorrect:
A. 4.8 mL/hr = Too low — underdosing.
C. 7.5 mL/hr = Too high — overdosing.
D. 9.2 mL/hr = Significantly too high.
Summary:
To deliver dopamine at 4.3 mcg/kg/min for a 75 kg patient using a concentration of 800 mg in 250 mL, set the IV pump to 6.0 mL/hr.
Mrs. Monroe weighs 165 lb and is prescribed a med with a dosage of 0.8 mg/kg in 2 divided doses. How many milligrams will Mrs. Monroe receive per day?
Select one:
-
30 mg
-
60 mg
-
90 mg
-
120 mg
Explanation
Correct Answer:
B. 60 mg
Explanation of Correct Answer:
Convert Mrs. Monroe’s weight from pounds to kilograms:
165 lb ÷ 2.2 = 75 kg.
Calculate the total dosage per day:
0.8 mg × 75 kg = 60 mg per day.
Since the dosage is given in two divided doses, the total daily dose is still 60 mg.
Why the Other Options are Incorrect:
A. 30 mg is incorrect because it is half of the correct daily dose, but the total dose is 60 mg per day.
C. 90 mg is incorrect as it exceeds the correct total dosage for Mrs. Monroe.
D. 120 mg is incorrect as it is too high for the prescribed dosage.
Summary:
Mrs. Monroe will receive 60 mg of the medication per day. The correct answer is B. 60 mg.
The nurse is reviewing instructions with a client who is to take 120 mL of a carbohydrate balanced meal replacement four times a day, three hours postprandial. The client has a measuring cup marked in ounces. How many ounces should the client take for each dose? (If rounding is required, round to the nearest tenth.)
-
4 ounces
-
6 ounces
-
8 ounces
-
10 ounces
Explanation
Correct Answer: A. 4 ounces
Why this answer is correct:
The client needs to take 120 mL of the meal replacement four times a day.
To convert milliliters to ounces, use the conversion factor: 1 ounce = 30 mL.
To determine how many ounces correspond to 120 mL:
120 mL ÷ 30 mL/ounce = 4 ounces.
Therefore, the correct volume is 4 ounces, but this question asks you to round to the nearest tenth. Thus, the nurse should instruct the client to take 4 ounces.
Why the other options are wrong:
B. 6 ounces – This is incorrect. If the client took 6 ounces, that would be 180 mL (6 ounces × 30 mL/ounce), which exceeds the prescribed 120 mL.
C. 8 ounces – This is also incorrect. 8 ounces would be 240 mL (8 ounces × 30 mL/ounce), which is much more than the prescribed dose of 120 mL.
D. 10 ounces – Similarly, 10 ounces would be 300 mL (10 ounces × 30 mL/ounce), which is incorrect and exceeds the required amount.
Summary:
The client should take 4 ounces for each dose, which is equivalent to the prescribed 120 mL. Therefore, the correct answer is A. 4 ounces.
The healthcare provider prescribes a continuous infusion of labetalol HCI at 2 mg/minute. "Labetalol HCI Injection USP 200 mg in 200 mL of 5% Dextrose Injection," is delivered to the unit. How many mL/hour should the nurse program the infusion pump? (Enter numerical value only.)
-
60 mL/hour
-
120 mL/hour
-
90 mL/hour
-
150 mL/hour
Explanation
Correct Answer: B. 120 mL/hour
Why this answer is correct:
To determine the correct mL/hour, follow these steps:
The medication is provided as 200 mg in 200 mL, meaning the concentration is 1 mg/mL (200 mg ÷ 200 mL).
The prescribed rate is 2 mg/min.
To convert to mL/min, divide the prescribed dose (2 mg/min) by the concentration (1 mg/mL). This gives 2 mL/min.
To convert to mL/hour, multiply by 60 minutes:
2 mL/min × 60 min = 120 mL/hour.
Why the other options are wrong:
A. 60 mL/hour – This would only provide 60 mg/hour (1 mg/mL × 60 mL = 60 mg), which is less than the required 120 mg/hour.
C. 90 mL/hour – This would provide 90 mg/hour (1 mg/mL × 90 mL = 90 mg), still less than the prescribed 120 mg/hour.
D. 150 mL/hour – This would provide 150 mg/hour (1 mg/mL × 150 mL = 150 mg), which exceeds the prescribed 120 mg/hour.
Summary:
The correct rate of infusion is 2 mg/min, which equals 120 mL/hour with the concentration of 1 mg/mL. Therefore, the nurse should program the infusion pump to deliver 120 mL/hour. The correct answer is B. 120 mL/hour.
A child with a seizure disorder receives a prescription for phenytoin 20 mg by mouth (PO) every 8 hours. The suspension is available in 125 mg/5 mL. How many mL should the nurse administer? (Enter the numerical value only. If rounding is required, round to the nearest tenth.)
-
0.8 mL
-
2 mL
-
4 mL
-
5 mL
Explanation
Correct Answer: A. 0.8 mL
Why this answer is correct:
To determine the correct volume of phenytoin suspension to administer, follow these steps:
The prescription is for 20 mg of phenytoin to be taken every 8 hours.
The available concentration is 125 mg in 5 mL.
To calculate how many mL contains 20 mg, use the following formula:
Volume (mL) = (Desired dose in mg / Available concentration in mg) × Volume in mL
Volume (mL) = (20 mg / 125 mg) × 5 mL
Volume (mL) = 0.8 mL
Thus, the nurse should administer 0.8 mL of the suspension.
Why the other options are wrong:
B. 2 mL – This would deliver 50 mg (125 mg/5 mL × 2 mL), which is far more than the prescribed 20 mg.
C. 4 mL – This would deliver 100 mg (125 mg/5 mL × 4 mL), which is even higher than the prescribed dose.
D. 5 mL – This would deliver 125 mg (the full strength of the suspension), which is well above the required 20 mg.
Summary:
The nurse needs to administer 0.8 mL of phenytoin suspension to provide the prescribed 20 mg. Therefore, the correct answer is A. 0.8 mL.
The healthcare provider prescribes levothyroxine 1.6 mcg/kg/day PO for a client who weighs 242 pounds. The medication is available in 88 mcg tablets. How many tablets should the nurse administer? (Enter numerical value only.)
-
2 tablets
-
3 tablets
-
1.6 tablets
-
1. 5 tablets
Explanation
Correct Answer: A. 2 tablets
Why this answer is correct:
First, convert the weight from pounds to kilograms:
242 pounds ÷ 2.2 = 110 kg
Now, calculate the daily dose based on 1.6 mcg per kg:
110 kg × 1.6 mcg/kg = 176 mcg/day
The tablets available are 88 mcg each.
Now, determine how many tablets are needed:
176 mcg ÷ 88 mcg/tablet = 2 tablets
Thus, the nurse should administer 2 tablets.
Why the other options are wrong:
B. 3 tablets – Incorrect. 3 tablets would deliver 264 mcg (88 × 3), which is significantly more than the prescribed 176 mcg dose, risking overdose.
C. 1.6 tablets – Incorrect. 1.6 tablets would provide 140.8 mcg (88 × 1.6), which would underdose the patient compared to the prescribed 176 mcg.
D. 1.5 tablets – Incorrect. 1.5 tablets would provide 132 mcg (88 × 1.5), also lower than needed, resulting in underdosing.
Summary:
The client weighs 110 kg and requires 176 mcg of levothyroxine daily. Each tablet contains 88 mcg. Dividing 176 by 88 gives exactly 2 tablets. Therefore, the nurse should administer 2 tablets. The correct answer is A. 2 tablets.
The prescriber ordered ceftriaxone 250 mg IM. How many mL will you need if you use ceftriaxone 500 mg/2.4 mL?
Select one:
-
0.2
-
1.2
-
1.25
-
208
Explanation
Correct Answer:
B. 1.2
Explanation of Correct Answer:
Set up the proportion to find the required volume in mL:
The concentration is 500 mg in 2.4 mL.
The ordered dose is 250 mg.
500 mg ÷ 2.4 mL=250 mg mL
Solve for X:
Cross-multiply and solve for X.
500 mg×X mL=250 mg×2.4 mL
500X=600
X=600÷500 =1.2 mL
Why the Other Options are Incorrect:
A. 0.2 mL is too low and does not correspond to the correct dosage.
C. 125 is not related to the correct volume required for the 250 mg dose.
D. 208 is not a valid volume for this dosage calculation.
Summary:
You will need 1.2 mL to administer 250 mg of ceftriaxone. The correct answer is B. 1.2.
A client is receiving phenytoin 0.2 gram PO twice daily. The medication is available in 100 mg capsules. How many capsules should the nurse administer? (Enter numeric value only.)
-
1 capsule
-
2 capsules
-
3 capsules
-
4 capsules
Explanation
Correct Answer: B. 2 capsules
Why this answer is correct:
0.2 gram = 200 mg.
Each capsule contains 100 mg.
To administer 200 mg per dose, the nurse would need:
200 mg ÷ 100 mg/capsule = 2 capsules
Thus, the nurse should administer 2 capsules per dose.
Why the other options are wrong:
A. 1 capsule – This would only deliver 100 mg, which is half of the prescribed dose.
C. 3 capsules – This would provide 300 mg, which exceeds the prescribed 200 mg dose and could result in toxicity.
D. 4 capsules – This would provide 400 mg, double the required dose, and could cause serious adverse effects.
Summary:
The client is prescribed 0.2 gram (200 mg) of phenytoin per dose, and each capsule contains 100 mg. Therefore, the nurse should administer 2 capsules per dose. The correct answer is B. 2 capsules.
How to Order
Select Your Exam
Click on your desired exam to open its dedicated page with resources like practice questions, flashcards, and study guides.Choose what to focus on, Your selected exam is saved for quick access Once you log in.
Subscribe
Hit the Subscribe button on the platform. With your subscription, you will enjoy unlimited access to all practice questions and resources for a full 1-month period. After the month has elapsed, you can choose to resubscribe to continue benefiting from our comprehensive exam preparation tools and resources.
Pay and unlock the practice Questions
Once your payment is processed, you’ll immediately unlock access to all practice questions tailored to your selected exam for 1 month .
Frequently Asked Question
ULOSCA integrates step-by-step problem-solving techniques and scenario-based questions that mimic real-world nursing situations. By combining practice questions with real-life applications, it enhances your ability to calculate accurate dosages and reduce medication errors.
Absolutely. ULOSCA’s resources include specific modules on weight-based and pediatric dosages, guiding you through complex calculations. It ensures you understand the nuances of adjusting doses based on age, weight, and medical conditions, a critical component of the ATI Dosage Calculation exam.
ULOSCA provides detailed formulas, practice questions, and case studies focused on IV calculations. It teaches you how to calculate flow rates, infusion times, and drip factors accurately, essential for both the exam and clinical practice.
Yes, ULOSCA includes test-taking strategies that help you analyze complex dosage problems, manage exam time effectively, and identify key information in medication orders. These strategies are designed to enhance your confidence and performance on the ATI Dosage Calculation exam.
ULOSCA emphasizes the "Five Rights" of medication administration (right patient, drug, dose, route, and time) in every aspect of its resources. By integrating safety protocols into practice questions and case studies, it reinforces safe medication practices for both exams and real-world scenarios.
Yes, ULOSCA includes a comprehensive review of basic math skills required for dosage calculations, such as fractions, decimals, ratios, and percentages. It ensures you have a solid foundation to tackle all types of dosage problems confidently.
ULOSCA provides diverse study tools, including interactive case studies, quizzes, visual aids, and written guides. This ensures that students with varying learning styles—visual, hands-on, or auditory—can effectively prepare for the ATI Dosage Calculation exam.