Week 8 Assignment: Group Project

E-BOOK: Bauer, R. C., Birk, J. P., & Marks, P. (2019). Introduction to chemistry. New York, NY: McGraw-Hill Education.

Attach below some example.

Suggested Formats:

• PowerPoint presentations ( 3 slides.  1- Why it’s important to use in nursing/dosage calculation. 2- Why important in nursing/dosage calculation. 3. One example)

Suggested Project Topics:

Relating stoichiometry to dosage calculations (CO 4)

Criteria

Relationship with Nursing: Ties between the chemistry topic and nursing are well explained and clear.

Visuals: Group makes great use of visuals (drawings, models, short videos, etc.) to demonstrate points.

Enthusiasm and Participation: All group members participate to enthusiastically present how their chemistry topic ties to the field of nursing.

Accuracy: Chemistry used is accurate and well explained. Chemistry and application are woven together well.

Questions: The group is able to clearly answer questions relating to their topic.

Citation of Sources APA Format: All sources are properly cited.

Medication Calculation Examination
Study Guide

D = Desired Dose
Q = Quantity of Solution
H = Strength on Hand
X = Unknown quantity of Drug

• Sample: Physician orders 500 mg of ibuprofen (desired Dose) for a patient and you have

250 mg (Quantity on Hand) tablets (Quantity of solution) on hand.

Solution: D ÷ H x Q = X 500mg ÷ 250 mg x 1 tablet = 2 tablets
Answer: 2 tablets.

• Sample: Physician orders 1500 mg of liquid ibuprofen for a patient. Quantity of

Ibuprofen is 500 mg in 1 cc, how much will you administer?

Solution: 1500 mg ÷ 500 mg x 1cc = 3 cc
Answer: 3 cc

Dosage and Conversions

Sample: MD orders 300 mg of Ibuprophen to be taken by a 6 kg infant every 4 hours. Label
shows 75 – 150 mg/kg per day. Is the physician’s order within normal range?
Solution: 6 x 75 = 450 mg (minimum dosage per day); 150 X6 = 900 (maximum dosage per
day)
24 ÷ 4 = 6 dosages : 300 x 6 = 1800
Answer: Dosage is not within range

IV Calculations

• [amount of fluid to be infused] x [drop factor] ÷ minutes to infuse = gtts/min

• Sample: Dr. A. orders your patient to receive 125 ml of D5W an hour for the next 8

hours. The nursing unit uses tubing with a drop factor of 10. What is the drip rate per
minute?

• Solution: Convert 1 hour to 60 minutes: 1250 x 10 gtts ÷ 60 minutes = 20.83 or 21

gtts/min
Answer: 21 gtts/min

Medication Calculation Examination Study Guide (Revised 06/10) Page 1 of 2

Medication Calculation Examination
Study Guide

• Sample: Dr. B. orders a liter of D5W to run this 8-hour shift. The drop factor is 15. What

is the drip rate per minute?

Solution: 1 liter = 1000 cc of solution, next convert 8 hours to minutes (8 X 60 minutes)
= 480 minutes
1000 cc x 15 gtts ÷ 480 minutes = 31.25 or 31 gtts/min
Answer: 31 gtts/min

• Your patient weighs 200 lb and the order is to infuse 250 mg dobutamine in 500 ml NS
at 10 mcg/kg/min. How many milligrams of dobutamine will infuse per hour?

200÷2.2= 90.90kg: 60 minutes = 1 hour:
10 mcg x 90.90kg x 60 min=5454.54 mcg/hour ÷ 1000 = 54.54mg/hr or 54.5mg/hr

Answer:_____54.5mg/hr_____

The “7 Rights” of Medication Administration

Right Patient Right Drug Right Dose Right Route
Right Time Right Documentation Right to Refuse

Conversion Table

• 1 kilogram (kg) = 1000 grams (g)
• 1 gram (g) = 1000 milligrams (mg)

– Convert Grams to Milligrams by Multiplying grams by 1,000
– Convert Milligrams to grams by dividing milligrams by 1,000

• 1 milligram (mg) = 1000 micrograms (mcg)
• Grains (gr.) 15 = 1 Gram (g) or 1000 milligrams (mg)

– To convert g. to gr multiply by 15
– To convert gr to g divide by 15.

• 1 Grain (gr.) = 60 Milligrams (mg)
– To convert gr. to mg multiply gr. by 60
– To convert mg to gr. divide mg. by 60

• 1ml = 1 cc
• 1 ounce = 30 ml
• 1 tablespoon (T or tbsp) = 15 ml
• 1 teaspoon (t or tsp) = 5 ml
• 2.2 lb = 1 kg
• To convert pounds to kg divide pounds by 2.2
• To convert kg to pounds multiply by 2.2

Medication Calculation Examination Study Guide (Revised 06/10) Page 2 of 2

http://www.dhl-usa.com/usgov/isr/lbs-kg-table/1,2120,,00.html