INJ and Flow Rates
Percents and Alligations
Ratios
Day Supply
SURPRISE
200

A vial contains 500 mg/2 mL. The prescribed dose is 750 mg.

How many mL should be administered?

What is 7.5 mL 


200

You need 1,200 mL of a 35% solution using 50% and 20% solutions.

How many mL of each are needed?

What is 600ml of each
200

A prescription requires a medication and diluent in a 1:4 ratio.

If the final mixture contains 250 mL, how many mL of medication and diluent are required?

What is 

  • Medication = 50 mL
  • Diluent = 200 mL
200

A patient receives 120 tablets with directions to take 1 tablet every 6 hours.

What is the day supply?

What is 30 days

200

A prescription says:

Take 2 tablets PO BID.

The patient receives 180 tablets.

What is 45 days?

400

A patient weighs 72 kg. The medication is ordered at 0.6 mg/kg/dose. The available concentration is 80 mg/2 mL.

How many mL should be administered per dose?

What is 1.08 mL 

400

Prepare 1,500 mL of a 32% solution using 60% and 20% solutions.

How many mL of each are required?

What is 450 mL of 60% and 1050 mL of 20% 

400

A compound requires active ingredient to diluent in a 3:5 ratio.

You need 640 mL total.

How many mL of each are required?

What is 

  • Active ingredient = 240 mL
  • Diluent = 400 mL
400

A patient receives 240 mL of an oral liquid.

Directions: Take 7.5 mL by mouth every 6 hours as needed.

Assuming the patient uses the medication at the maximum frequency allowed by the directions, what is the day supply?

What is 8ml
400

A medication is available as 250 mg/5 mL.

The prescription calls for 750 mg per dose.

How many mL are needed for one dose?

What is 15ml 

600

A medication is supplied as 2.5 g/10 mL. The ordered dose is 1.75 g.

How many mL should be administered?

What is 7ml


600

A pharmacy needs 1,000 mL of an 18% solution using 30% and 10% solutions.

How many mL of each solution are needed?

What is 400 mL of 30% and 600 mL of 10% 


600

A solution is prepared using drug A and drug B in a 3:2 ratio.

If the final preparation contains 750 mL, how much of each drug is required?

What is 

  • Drug A = 450 mL
  • Drug B = 300 mL
600

A prescription contains 100 tablets.

Directions: Take 2 tablets every 8 hours.

What is the maximum number of complete days supplied?

What is 16 days?

600

A patient needs 1,500 mL of IV fluid over 12 hours.

The IV tubing has a drop factor of 20 gtt/mL.

What is the drip rate in gtt/min?

What is 42 gtt/min 

800

A medication is available as 750 mg/5 mL. The prescribed dose is 1.125 g.

How many mL should be administered?

What is 7.5ml

800

Prepare 800 mL of a 7.5% solution using 12% and 5% solutions.

How many mL of each solution are required?


What is 

  • 285.7 mL of 12%
  • 514.3 mL of 5%
800

A medication is labeled 1:250.

The pharmacy needs to prepare 100 mL of this preparation.

How many grams of medication are required?

What is 0.4g

800

A patient uses insulin U-100, and the prescription is written for 22 units once daily. The patient receives one 10-mL vial.

What is the maximum day supply, assuming the entire vial is usable and there is no additional wastage?

What is 45 days?

800

You need to prepare 600 mL of a 25% solution using 40% and 10% solutions.

How many mL of the 40% solution are needed?

What is 300ml

1000

A patient is receiving 1,000 mL of IV fluid over 8 hours using tubing with a drop factor of 15 gtt/mL.

What is the infusion rate in mL/hr AND the drip rate in gtt/min?

What is 125 mL/hr and 31 gtt/min 

1000

A pharmacy needs to prepare 2,500 mL of a 2% solution using a 5% solution and a 1% solution.

How many mL of each solution are required?

What is 625 mL of 5% and 1,875 mL of 1% 

1000

A pharmacy compound contains 0.75 g of active ingredient in 300 mL.

Express the concentration as a ratio strength, written as 1:X.

What is 1:400

1000

A patient is prescribed U-100 insulin with the following directions:

Inject 18 units every morning and 12 units every evening.

The pharmacy dispenses 2 boxes, each containing 5 pens, and each pen contains 3 mL.

What is 50 days

1000

A patient receives 90 capsules with directions:

Take 1 capsule PO q8h for 10 days, then take 1 capsule PO BID thereafter.

How many capsules will the patient use during the first 30 days of therapy?

What is 70 capsules

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