Question 1

The healthcare provider prescribes 25 mg of a medication every 8 hours for the client.The next day the dose of medication is changed to 15 mg twice a day.How much has this medication been decreased?

Accepted Answer

Because the frequency of the medication has changed begin by determining the total daily dosage of the medication.When the client was receiving 75 mg of the medication every 8 hours the client received 25 x 3 or 75 mg of the medication.When the order changed,the client is receiving 15 mg x 2 or 30 mg of the medication.Now using the equation Fraction of Change = Change/Original,the equation will be Fraction of Change = 30/75 or 6/15.Convert this fraction into a decimal number by dividing 6 by 15 or 0.4 which is 40%.The medication dosage was decreased by 40%.

Question 2

Calculate the decimal number and smallest reduced fraction for 65%.

Accepted Answer

To convert percentages to a fraction place the value of the percent in the numerator and the 100 as the denominator.For 65% this would be 65/100.Reduce this number further by dividing by 5 to determine the smallest fraction as being 13/20.To determine the decimal number begin again by placing 65 as the numerator and 100 as the denominator or 65/100.Since the denominator is 100,the number has 2 decimal points or 0.65.

Question 3

Calculate 0.35 x 1.45
Standard Text: Record the answer rounding to the nearest hundredth decimal place.

Accepted Answer

0.51
Explanation:When multiplying 0.35 by 1.45 begin by first calculating 35 x 145 = 5,075.Then count the total number of decimal places which is 4.From the number 5,count back four spaces or 0.5075.Next,look at the number and determine the hundreth decimal place.This is the number 7.The next number to 0 is 7 which is greater than 5.This means that the number can be rounded up to 1.The correct answer is 0.51.

Question 4

Reduce the fraction 125/8 into a mixed number and simplify to the lowest terms.

Accepted Answer

Divide the numerator by the denominator or 125 ÷8 = 15 625/1000.The fraction 625/1000 can be further reduced by dividing both the numerator and denominator by 5 until the fraction of 5/8 is reached.

Question 5

Calculate 0.25 x 1.47 and round to the nearest tenth decimal place.

Accepted Answer

When multiplying 0.25 by 1.47 begin by first calculating 25 x 147 = 3675.Then count the total number of decimal places which is 4.From the number 5,count back four spaces or 0.3675.Next,look at the number and determine the tenth decimal place.This is the number 3.The next number to 3 is 6 which is greater than 5.This means that the number can be rounded up to 4.The correct answer is 0.4.

Question 6

A client is prescribed 400 mg of vancomycin every eight hours.The healthcare provider increased the dosage to 600 mg every six hours.What percentage of change was made in the dosage?
Standard Text: Record the answer rounding to the nearest whole number.

Accepted Answer

The answer of A client is prescribed 400 mg of...

Question 7

A adult client is receiving 2000 mL of intravenous fluids per day.The healthcare provider writes an order to reduce the fluid to 1500 mL per day.What percent has the fluid changed?
Standard Text: Record the answer rounding to the nearest whole number.

Accepted Answer

The answer of A adult client is receiving 2000 mL...

Question 8

A client was receiving intravenous fluids of 100 ounces per day.The healthcare provider writes an order to reduce the fluid to 85 ounces per day.What percent has the fluid changed?

Accepted Answer

To determine the percent of change,use the equation fraction of change is equal to the change divided by the original number.For this situation the equation would be the fraction of change = 85/100 or 85%.

Question 9

A client is prescribed 125 mg of a medication every 4 hours.The dosage is decreased to 75 mg every 4 hours.What percent was the medication decreased?

Accepted Answer

Using the equation Fraction of Change = Change/Original,calculate the equation Fraction of Change = 75/125 or 3/5.Change the fraction to a decimal by dividing 3 by 5 or 0.6 or 60%.The dosage was changed by 60%.

Question 10

Complete the following equation: 0.35 ÷ 0.20.

Accepted Answer

Set up the equation so that 0.20 is being divided into 0.35.Move the decimal point 2 spaces to the right.Divide 20 into 35.Place the number 1 above the number 5.The remaining value to divide by 20 is now 15.Add a 0 to 15 and divide 20 into 150.Place the number 7 in the first place after the decimal point.The remaining value to divide by 20 is now 10.Add a 0 to the 10 and divide 20 into 100.Place the number 5 in the second space after the decimal point.

Question 11

Divide 4 3/5 ÷ 2 5/8 and simplify to the lowest terms.

Accepted Answer

Write 4 3/7 as the improper fraction of 23/5 and 2 5/8 as the improper fraction 21/8.Then set up the equation by inverting the second fraction or 23/5 x 8/21 = 184/105.Now reduce the fraction by dividing 105 into 184 or 1 75/100.Reduce the fraction of 75/100 further by 5 until the fraction ¾ is reached.The answer is 1 ¾.

Question 12

The dietician suggests that a client weighing 220 lbs.should lose 15% of the current body to meet the first weight loss goal.How many pounds does this client have to lose to meet the first weight loss goal?
Standard Text: Record the answer rounding to the nearest whole number.

Accepted Answer

The answer of The dietician suggests that a client weighing...

Question 13

A client is prescribed 10 mg of a medication,3 times a day.The dosage is changed to 15 mg 3 times a day.What percentage has this medication been increased?

Accepted Answer

Using the equation Fraction of Change = Change/Original,calculate the Fraction of Change as being 10/15 or 2/3.Convert this fraction into percent by dividing 2 by 3 or 0.66,place 66/100;or 66%.This medication was increased by 66%.

Question 14

Calculate the decimal number and smallest reduced fraction for 85%.
Standard Text: Record the decimal number rounding to the nearest hundredth.
Correct

Accepted Answer

The answer of Calculate the decimal number and smallest reduced...

Question 15

Simplify the complex equation 13/15 x 200 / 11/17 and reduce it to the lowest terms.

Accepted Answer

First rewrite the equation as 13/15 x 200/1 ÷ 11/17.Next,invert the fraction 11/17 to make the new equation of 13/15 x 200/1 x 17/11.Then reduce the denominator 15 and numerator 200 by 5 so that the new equation is 13/3 x 40/1 x 17/11.Next multiply the numerators and the denominators to reach the fraction of 8840/33.Now divide the denominator 33 into 8840 to reach the number of 267 88/100.Now reduce the fraction of 88/100 by 4 to reach the fraction of 22/25.The final answer is 267 22/25.

Question 16

A client is prescribed digoxin (Lanoxin).The healthcare provider increased the client's dose from 0.25 mg to 0.375 mg.What percentage was the dosage increased?

Accepted Answer

Using the equation Fraction of Change = Change/Original the equation will be Fraction of Change = 0.375/0.25 = 1.5 or 150% increase in dosage.

Question 17

A client ingested ½ of 4 ounces of juice;¾ of 6 ounces of coffee;½ of 8 ounces of broth;and ¾ of 12 ounces of water.Which fluid did the patient consume the most?

Accepted Answer

One half of 4 ounces of juice is 2 ounces.Calculate ¾ of 6 ounces of coffee by multiplying ¾ x 6/1= 18/4 = 4.5 ounces.One half of 8 ounces of broth is 4 ounces.Calculate ¾ of 12 ounces of water by multiplying ¾ x 12/1 = 36/4 = 9 ounces.The patient consumed the most of water.

Question 18

The healthcare provider suggests that a client weighing 250 lbs.needs to lose 20% of the current body weight.How many pounds is this client expected to lose?

Accepted Answer

The client currently weight 250 lbs.Convert 20% to the decimal equivalent of 20/100 or 0.20.Then,multiply 250 x 0.20 = 50.The healthcare provider wants the client to lose 50 lbs.

Question 19

Convert 0.85 to a fraction and reduce it to the smallest terms.

Accepted Answer

The number of spaces after the decimal point is 2;therefore the denominator for the conversion of 0.85 to a fraction is 100.The fraction would be 85/100.When reducing to the smallest terms,divide both the numerator and denominator by 5 to determine the fraction 17/20.

Question 20

Type: MCMA The medication nurse wants to verify calculations prior to administering medications through the use of a calculator.Which functions should the calculator have in order to be useful to the nurse?
Standard Text: Select all that apply.

Accepted Answer

A basic four-function (addition,subtraction,multiplication,and division),
handheld calculator with a square-root key is sufficient to perform most medical dosage calculations.While having a percentage function may be useful,this is not required when calculating drug dosages.

Quiz 1: Review of Arithmetic for Dosage Calculations

The healthcare provider prescribes 25 mg of a medication every 8 hours for the client.The next day the dose of medication is changed to 15 mg twice a day.How much has this medication been decreased?

Calculate the decimal number and smallest reduced fraction for 65%.

Calculate 0.35 x 1.45 Standard Text: Record the answer rounding to the nearest hundredth decimal place.

Reduce the fraction 125/8 into a mixed number and simplify to the lowest terms.

Calculate 0.25 x 1.47 and round to the nearest tenth decimal place.

A client is prescribed 400 mg of vancomycin every eight hours.The healthcare provider increased the dosage to 600 mg every six hours.What percentage of change was made in the dosage? Standard Text: Record the answer rounding to the nearest whole number.

A adult client is receiving 2000 mL of intravenous fluids per day.The healthcare provider writes an order to reduce the fluid to 1500 mL per day.What percent has the fluid changed? Standard Text: Record the answer rounding to the nearest whole number.

A client was receiving intravenous fluids of 100 ounces per day.The healthcare provider writes an order to reduce the fluid to 85 ounces per day.What percent has the fluid changed?

A client is prescribed 125 mg of a medication every 4 hours.The dosage is decreased to 75 mg every 4 hours.What percent was the medication decreased?

Complete the following equation: 0.35 ÷ 0.20.

Divide 4 3/5 ÷ 2 5/8 and simplify to the lowest terms.

The dietician suggests that a client weighing 220 lbs.should lose 15% of the current body to meet the first weight loss goal.How many pounds does this client have to lose to meet the first weight loss goal? Standard Text: Record the answer rounding to the nearest whole number.

A client is prescribed 10 mg of a medication,3 times a day.The dosage is changed to 15 mg 3 times a day.What percentage has this medication been increased?

Calculate the decimal number and smallest reduced fraction for 85%. Standard Text: Record the decimal number rounding to the nearest hundredth. Correct

Simplify the complex equation 13/15 x 200 / 11/17 and reduce it to the lowest terms.

A client is prescribed digoxin (Lanoxin) .The healthcare provider increased the client's dose from 0.25 mg to 0.375 mg.What percentage was the dosage increased?

A client ingested ½ of 4 ounces of juice;¾ of 6 ounces of coffee;½ of 8 ounces of broth;and ¾ of 12 ounces of water.Which fluid did the patient consume the most?

The healthcare provider suggests that a client weighing 250 lbs.needs to lose 20% of the current body weight.How many pounds is this client expected to lose?

Convert 0.85 to a fraction and reduce it to the smallest terms.

Type: MCMA The medication nurse wants to verify calculations prior to administering medications through the use of a calculator.Which functions should the calculator have in order to be useful to the nurse? Standard Text: Select all that apply.