W19 Practice Questions for Quiz #2 - ANSWERS

PN Practice Questions for Quiz #2 – ANSWERS Section A: Abbreviations a. tablespoon Tbsp or T f. q4h every four hours b. as needed PRN or prn g. mL millilitre c. immediately STAT or stat h. tab tablet d. kilogram kg i. mEq milliequivalent e. nothing by mouth NPO or npo j. ung ointment Section B: Conversions DO NOT ROUND YOUR ANSWERS a. 0.63 kg = 630 g f. 843 mL = 0.843 L b. 235 mg = 0.235 g g. 3 oz = 90 mL c. 30 mL = 1 oz h. 145 kg = 319 lb d. 2 tsp = 10 mL i. 550 mcg = 0.55 mg e. 9 lb = 4.09 kg j. 1 tbsp = 0.5 oz Section C: Oral Medications Show ALL of your work: ROUND APPROPRIATELY 1. Prescription: dimenhydrinate (Gravol) 25 mg po q6h prn Available: dimenhydrinate 50 mg/tablet How many tablets should the nurse administer per dose? Tabs 1 tab 25 mg 25 X 1 tab 25 tab = 0.5 tab/dose dose 50 mg dose 50 dose 50 dose 2. Prescription: levothyroxine (Eltroxin) 0.1 mg po BID Available: levothyroxine 100 mcg/tablet How many tablets should the nurse administer per day? BID = 2 doses/day Tabs 1 tab 0.1 mg 1000 mcg 2 doses 1 tab x 0.1 X 1000 x2 200 tab = 2 tabs/day day 100 mcg 1 dose 1 mg 1 day 100 x 1 x 1 x 1 day 100day

Practice Math Test for PN Quiz #2 ANSWERS Page 2 of 8 3. Prescription: sertraline (Zoloft) 150 mg po daily Available: sertraline 50 mg capsules How many capsules should the nurse administer per dose? 4. Prescription: phenytoin (Dilantin) 300 mg po TID Available: phenytoin 125 mg/tsp a) How many mL(s) should the nurse administer per dose? mL Tsp 300 mg 5 mL 1 x 300 x 5mL 1500 = 12 mL/dose dose 125mg dose 1 tsp 125 x 1 dose x 1 125 b) How many mL(s) should be administered per day ? TID = 3 doses/day Could do it 2 different ways. Solution 1 – start from beginning mL 1 Tsp 300 mg 5 mL 3 doses 1 x 300 x 5mL x 3 4500mL = 36 mL/day day 125mg dose 1 tsp day 125 x 1 x 1 x 1day 125day OR, because you already know 12ml/dose Solution 2 – used what you learned from part a mL 12mL 3 doses 12 mL x 3 36mL = 36mL/day day dose day 1 x 1day 1 day Capsules capsule 150 mg 1 capsule x 150 150 capsule = 3 capsules/dose dose 50mg dose 50 x 1 dose 30 dose

Practice Math Test for PN Quiz #2 ANSWERS Page 4 of 8 7. Doctor’s order reads: Give 10 units of Humulin R 32 units of Humulin N subcutaneous ac breakfast daily a. How much total insulin should the nurse give before breakfast? 10 units +32 units 42 units total Therefore the nurse would give 42 units total of insulin at breakfast. b. Which type of insulin vial would you first inject air? I would first inject air into the Humulin N (intermediate/cloudy) insulin vial first. c. Which insulin would you draw up from first into your syringe? I will draw up Humulin R the clear, short acting insulin first to protect the vial from contamination Humulin R (short acting/clear ) Humulin N (Intermediate /Cloudy)

Practice Math Test for PN Quiz #2 ANSWERS Page 5 of 8 d. Choose the most accurate syringe and mark the total amount of insulin you would give. Place an arrow touching the intermediate acting dose calibration. Section E: Parental Injection Calculations Show ALL your work. ROUND Appropriately NB* Syringes and needles are not scaled to actual size 8. The post-op client complains of nausea and has Stemetil 10 mg IM q4h prn ordered. Stemetil is supplied in a 5 mL vial containing 5 mg/mL. a. How many mL should the nurse administer per dose? mL mL 10 mg 1 mL x 10 10mL = 2 mL/dose dose 5mg dose 5 mg x 1 dose 5dose b. Shade in the dose on the most appropriate syringe. Shade to 2 ml Most Accurate Syringe

Practice Math Test for PN Quiz #2 ANSWERS Page 7 of 8 11. The physician prescribes Gentamycin 80mg IM q6h for your client with osteomyelitis. Gentamycin 25 mg/mL is available. a. How many mL(s) of Gentamycin should the nurse administer per day? To figure out how many doses Order is for q6h = 24 divided by 6 = 4 doses/day 12. Doctor has ordered hydromorphone 0.5 mg IM STAT dimenhydrinate 25mg Vials supplied by Pharmacy are listed below • hydromorphone is supplied 2mg/mL • dimenhydrinate is supplied 250mg/5mL You have checked drug compatibility and they may be administered in the same syringe. a) How many mL(s) of hydromorphone will you draw up for one dose?_____________ ** Do not round to 0.3mL as your textbook would instruct. b) How many mL(s) of dimenhydrinate will you draw up for one dose? ____________ c) What is the total amount that you would draw up into syringe of both medications? 0.25 mL hydromorphone +0.5 mL dimenhydrinate 0.75mL therefor the total amount would be 0.75mL * do not round to 0.8mL as we want most accurate amount mL 1 mL 80 mg 4 doses 1mL x 80 x 4 320mL = 12.8 ml/day day 25 mg dose day 25 x 1 x 1day 25dose mL 1 mL 0.5 mg 1mL x 0.5 0.5mL = 0.25 mL dose 2 mg dose 2 x 1 dose 2 dose mL 5 mL 25 mg 5mL x 25 125 mL = 0.5 mL dose 250 mg dose 250 x 1 dose 250 dose

Practice Math Test for PN Quiz #2 ANSWERS Page 8 of 8 d) Mark the total dose you will draw up (amount of both medications combined) on the most appropriate syringe 13. Your patient is to receive Digoxin 0.125mg IM once daily in the morning. On hand in the acudose you have a vial of Digoxin 500mcg in 2 mL. How many mL(s) will you draw up in to your syringe? mL 2 mL 0.125 mg 1000 mcg 2mL x 0.125 X 1000 250 mL = 0.5 mL/dose dose 500 mcg 1 dose 1 mg 500 x 1 dose x 1 500dose Please remember you can’t put • ½ mL. • .5mL or • 0.50 mL as the answer or it will be marked wrong.