Question 1

A 3% sodium chloride solution is often administered intravenously to patients with severe hyponatremia. How many grams of sodium chloride are in a 250 mL bag of 3% sodium chloride?

Accepted Answer

The answer of A 3% sodium chloride solution is often...

Question 2

The pharmacy mixes a TPN stock solution containing 500 mL of 50% dextrose and 500 mL of amino acids for a total volume of 1 liter. What is the final concentration of dextrose in each 1 liter bag?

Accepted Answer

The answer of The pharmacy mixes a TPN stock solution...

Question 3

Using Clark's rule (weight of the child in pounds/150, then multiplied by the average adult dose), what should the dose of promethazine be for a 20-kg child if the average adult dose is 25 mg (round to the nearest whole number)?

Accepted Answer

The answer of Using Clark's rule (weight of the child...

Question 4

A 1-gram vial of ceftriaxone states that if 10 mL of sterile water is added for reconstitution, the final concentration will be 980 mg per mL. How many mL would be required for a 245 mg dosage?

Accepted Answer

The answer of A 1-gram vial of ceftriaxone states that...

Question 5

A patient is ordered 2 liters of hydration fluids to be infused intravenously over 4 hours. What rate in mL/hr should the infusion be infused?

Accepted Answer

The answer of A patient is ordered 2 liters of...

Question 6

Intravenous dopamine is frequently ordered to be started at a rate of 5 mcg/kg/min. If the standard concentration of dopamine is 400 mg/250 mL of D5W, what would be the rate (in mL/hr) for a 176-pound patient?

Accepted Answer

The answer of Intravenous dopamine is frequently ordered to be...

Question 7

The normal dosage for amoxicillin is 45 mg/kg/24 hours administered in divided doses. What would the dosage be for a 44-pound child if the dose is ordered BID?

Accepted Answer

The answer of The normal dosage for amoxicillin is 45...

Question 8

A patient has an order for heparin 1000 units per hour by continuous infusion for a deep venous thrombosis. The pharmacy keeps a stock solution of 25,000 units of heparin in 250 mL of NS. How many mL would be required for 24 hours of therapy?

Accepted Answer

The answer of A patient has an order for heparin...

Question 9

The pharmacy has heparin 10,000 units per mL vials in stock. How many mLs of heparin would be required to mix a solution of heparin 25,000 units in 500 mL of D5W?

Accepted Answer

The answer of The pharmacy has heparin 10,000 units per...

Question 10

An infusion of the antibiotic vancomycin is currently running at 70 gtts/min. What is the rate in mL/hr if the tubing being used is rated 20 gtts/mL?

Accepted Answer

The answer of An infusion of the antibiotic vancomycin is...

Question 11

A nitroglycerin drip is ordered to be infused at 20 mcg/minute. The stock solution available has a concentration of 50 mg/250 mL. How many mL/hr should the IV be administered?

Accepted Answer

The answer of A nitroglycerin drip is ordered to be...

Question 12

A patient is administered 1750 mL of a TPN solution every 24 hours. The TPN solution contains 20% dextrose. If each gram of dextrose provides 3.4 calories, how many calories per 24 hours does the patient receive?

Accepted Answer

The answer of A patient is administered 1750 mL of...

Question 13

A heparin drip is currently infusing at 25 mL/hr. If the concentration of heparin in the bag is 25,000 units per 500 mL NS, how many units/hr are being infused?

Accepted Answer

The answer of A heparin drip is currently infusing at...

Question 14

An order reads to give hydration fluids of 0.9% sodium chloride at 120 mL per hour. What is the drip rate, in gtts/min, if the tubing is labeled as 10 gtts/mL?

Accepted Answer

The answer of An order reads to give hydration fluids...

Question 15

The hospital pharmacy keeps cefazolin 1 gram/50 mL D5W piggyback bags in stock for surgery. Bulk bottles of cefazolin are available as 10 gram powder per vial. The reconstitution instructions state that the final concentration of solution will be 1000 mg per 5 mL if 45 mL of sterile water is added to the vial. How many mLs of cefazolin solution would be required to make eight piggyback bags?

Accepted Answer

The answer of The hospital pharmacy keeps cefazolin 1 gram/50...

Quiz 16: Calculation of Dosages