Nrsg 100 math questions PDF

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multiple problems that we needed to learn for dosage calculations ...

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Conversions Weight 1 Kg = 1,000 gm = 1,000,000 mg = 1,000,000,000 mcg 1 gm = 1000 mg = 1,000,000 mcg 0.1 gm = 100 mg = 100,000 mcg 1 mg = 1000 mcg (µ = this is the symbol for mcg) 60 mg = gr I (with exception of ASA and Tylenol which is 65 mg) 30 mg = gr 1/2 10 mg = gr 1/6 0.6 mg = gr 1/100 (60 mg ÷ gr 100 = 0.6 mg) 0.4 mg = gr 1/150 (60 mg ÷ gr 150 = 0.4 mg) 0.3 mg = gr 1/200 (60 mg ÷ gr 200 = 0.3 mg) 1 kg = 2.2 lbs 1Unit = 1000mU Volume 1 L = 1000 ml 1 qt = 32 fl. oz. = 2 pts = 4 cups 1 pt = 16 oz = 2 cups 1 cup = 8 oz = 240 mL 30 mL = 1 oz = 2 tbsp = 6 tsp 1 dr = 4 mL = 60 minims= 60 drops (gtts) 15 ml = ½ oz 1 gtt = 1 minim 1 tsp (teaspoon) = 5 mL 4 qt = 1 gal = 128 oz = 3,840 mL 1 cc = 1 mL 1 tbsp (tablespoon) = 3 tsp (teaspoon) = 15 mL IV Tubing (will vary according to facility and pump manufacture) (for the purpose of testing use the following descriptions) gtt = drop, mL = milliliter, L = Liter, g or gm = gram, mg = milligram, mcg= microgram, gr = grain 10 gtt/mL = macro drip tubing 60 gtt/mL = micro drip tubing IV Rates Controller/Pump is set to mL/hr Drip rate is gtt/min Rounding Rules For Adult: round to the nearest 10th place unless otherwise instructed For Pediatric: round to the nearest 100th place unless otherwise instructed

Math NRSG 100 Name_________________ Major Course Learning Objective #8: Demonstrate fundamental principles of drug dosage calculation. SLO 1, 2, 3 Math Rules Although practices at facilities vary, for the purpose of this exam the following rules will apply: Students must show their calculations  Rounding: Students will be expected to demonstrate the principals of rounding. o Adults: The answer will be rounded to the nearest tenth (mg, mcg, and mL). All calculations are for adults unless stated otherwise. o Pediatric: The answer will be rounded to the nearest hundredth. o Do NOT do any rounding until the end of the problem.  IV calculations: (rate-mL/h and gtt/min) o For the purpose of exams, IV rate calculation will be rounded to the nearest whole number.  IV time related calculations: o Must be accurate to within 5 minutes.  To promote safety, a zero must be place to the left of the decimal point in answers that are less than one. No zero is allowed to the right of the decimal point in answers that are whole numbers. o Examples .5 mg must be answered as 0.5 mg. o 5.0 mg must be answered as 5 mg.  Labeling: o All answers must be labeled correctly. No label or an incorrect label makes the answer incorrect.

Your Calculation of Drug Dosages book has a review of math skills that you should already possess prior to coming into the nursing program in Ch. 1-7 Please take time to review and practice these skills on your own. Each Question is worth 1 point each Please refer to Calculation of Drug Dosages Ch. 11 for Calculation of Oral Dosages and Ch. 6 for Conversions for the questions below. 1. Order Xanax 0.5mg PO TID Drug available: 0.25mg tablets How many tablets will you give? _____2 tablets__________________ 2. Order Augmentin 500mg IV BID Drug available: 250mg/5mL How much will you administer? ____10 mL___________________

3. The doctor has ordered 7.5mg of a drug. The drug is available in a 2.5mg/5ml syrup. How many tsp should the patient receive? 3 tsp 4. The patient is to receive prednisone 12.5mg PO. On hand are prednisone 5mg tablets. The nurse should administer _2.5______ tablet(s) 5. Ordered: Amoxil 50 mg P.O. q 6 hrs Available: Amoxil 125 mg/5 mL How many mL will you give: ____2 mL_______________ 6. Ordered: Lasix 40 mg Available: Lasix 80 mg tablets How many tablets will you give: __0.5 tablet______________

Please refer to Calculation of Drug Dosages Ch. 9 pp. 166-167 to answer the questions below. 7. Display the following military times in standard time a. 1432 ____2:32 PM_________ b. 0545 ___5:45 AM__________

8. Display the following times in military time a. 8:52am __0852____________ b. 11:15pm ___2315___________ Please refer to Calculation of Drug Dosages Ch. 7 p. 136-137 to answer the questions below. 9. For dinner your client drank an 8 ounce glass of apple juice, 240cc of coffee, and a 12 ounce can of soda. He drank half of his 800mL pitcher of water during your shift and voided 3 times (250cc, 400cc, 625cc). He also vomited 50mL. Calculate the Intake and Output in mL (cc) during your shift.

Intake ___1,240_________ mL Output __1,275__________mL 10.For dinner the client drank two 8 oz cups of coffee and had a 12 ounce soft drink at 2100. The client voided 4 times on your shift (100mL, 250mL, 300mL, 550mL). At 1700 the client had 100mL emesis. Calculate Intake and Output from 1500 to 2300 when your shift ends. a. Intake: __940_____mL_____ b. Output: __1200___mL______

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NRSG: Math Review This assignment meets the following course learning objectives: CLO#1: Integrate Quality and Safety Education for Nursing (QSEN) competencies as they relate to collaborative, safe, culturally competent, and holistic patient-centered care. (SLO 1 )

The following problems are all examples of math questions that you will see during your time in NRSG 102. Please utilize your Calculation of Drug Doses book.

Basic Conversions You will need to memorize your conversions. While you will not have simple conversions as the only part of a math test question, they will be integrated into the math problem, therefore it is imperative that you know them! 1kg = ___2.2__ lbs. 1tsp = ___5____ mL 2mg = _2000___ mcg 1tbsp = __3__ tsp 8oz = _240___mL

Intravenous Rate Calculations 1. The physician has ordered 500mL of NS to infuse over 2 hours. How many milliliters per hour will you program the IV pump? ______250 mL/hr__________________ 2. The patient has ordered 2.24mg Zosyn in 100mL NS. Hospital protocol states that Zosyn must be infused over 4 hours. How many milliliters per hour will you program the IV pump? ________25 mL/hr________________

3. The patient has ordered Levaquin 500mg in 150mL of 0.9% NS to infuse over 90 minutes. How many milliliters per hour will you program the IV pump? _______100 mL/hr_________________

Intravenous Completion Time Calculations- Math for Meds, Ch.19 pg. 289 4. A volume of 250mL is to infuse at 75mL/hr. Calculate the infusion time. __________3 hrs 20 min._______________ 5. A volume of 500mL is to infuse at 50mL/hr. It was started at 0800. Infusion time: ____10 hrs__________________ ______1800_______

Completion time:

6. An IV of 1000mL of 0.9% NS has an ordered rate of 80mL/hr. It was started at 0640. Infusion time: ____12 hrs 30 min._____ _______1910_______________

Completion time:

I&O Calculations 7. It is the end of your 8 hour shift and time to complete I&O’s. Your client for the day ingested: 4oz of Jello, 1 cup of apple juice, 240mL of diet coke, and 2 cups of beef broth. Your client also voided three times, measuring 400mL, 250mL and 300mL, and 40mL was emptied from their JP drain. Calculate their I&O. Intake: ________1080 mL________ Output: _____990 mL________________

IV Drip Rates- Math for Meds, Ch. 18, pg. 269 8. An IV of 1000mL is to infuse in 4 hours using tubing with a drip factor of 15gtt/mL. Calculate the flow rate in gtt/min. Round to the nearest whole number. ______63 gtts/min________________ 9. 500mL of NS is to infuse over 8 hours using tubing with a drip factor of 10gtt/mL. Calculate the flow rate in gtt/min. Round to the nearest whole number. ______10 gtts/min________________ 10. D51/2NS is to infuse at 125mL/hr using tubing with a drip factor of 20gtt/mL. Calculate the flow rate in gtt/min. Round to the nearest whole number. _________42 gtts/min______________

Reconstitution- Math for Meds, Ch. 10, pg. 129 **Remember: the drug in the vial will account for part of the total end volume when reconstituting. For example: when reconstituting with 9.8mL of sterile water, the total number of milliliters would be 10**

11. The physician orders 250mg azithromycin IV. A 500mg vial of azithromycin power has instructions to reconstitute with 4.8mL of sterile water. What is the dosage strength per milliliter after reconstitution? ____100 mg/mL_______ How many milliliters would contain the prescribed amount? _____2.5 mL__________ 12. You have received an order to administer 5mg Geodon IM. The vial contains 20mg of powder and has instructions to reconstiture with 1.2mL of sterile water. Each milliliter after reconstitution will contain 10mg of Geondon. How many milliliters will you administer? _______0.25 mL________________

Reading Labels- Math for Meds, Ch. 9, pg. 102

13. Your patient has ordered 750mg of Augmentin po BID. How many teaspoons will you administer per dose? _____3 tsp_________________

14. The client takes misoprostol 2 tablets QID. How many micrograms do they take per dose? ___________200 mcg________________

15. Your client takes levothyroxine 75mcg daily for hypothyroidism. How many tablets would you administer? _______1.5 tabs_______________...