Dosage Problems

[object Object],[object Object],b. How much of the drug could be consumed of given for two weeks? ,[object Object],[object Object],[object Object],125mg/dose x 3 doses/day x 14 days = 5250 mg ,[object Object]

[object Object],a. How many of the stock tablets should be given? ,[object Object],[object Object],(1/300) ÷ (1/150) = ½ of the stock tablets (1/300)(3)= 1/100 gr. (1/100) (10) = 1/10 (1/10) ÷ (1/150) = 15 TABLETS

[object Object],a. How much of the drug did the patient actually receive per dose? ,[object Object],[object Object],5mL ÷ 4 = 1.25 ml 5mL x 1 dose/1.25mL = 4 doses 1.25 (1000) = 1250 mg

[object Object],a. How many capsules should be given for the initial dose? ,[object Object],[object Object],1500 + (500 x 5) = 4000 ÷ 500 = 8capsules Initial + (Succeeding x # of doses left) 1500 + (500 x 5) = 4000 mg 1500 ÷ 500 = 3 capsules

[object Object],a. How many ml would be given for the initial dose? ,[object Object],[object Object],d. How much of the drug was left unconsumed? 150 x 1mL/100mg = 1.5 ml 50 ÷ 100 = 0.5 ml 150 + (50 x 11) = 700 mg Initial + (Succeeding x # of doses left) 10 ml = 1000mg therefore 1000 - 700 = 300mg

[object Object],[object Object],[object Object],[object Object],10 grains x 3 ½ = 35 grains 35 grains x 7 = 245 grains x 60mg/grain = 14,700mg

[object Object],[object Object],[object Object],[object Object],150 x 4 = 600 mg 600 x 10 = 6000 mg

[object Object],[object Object],[object Object],5 gr/tablet x 60mg/grain = 300 mg/tablet 300 ÷ 300 = 1 tablet 1 tablet/dose x 4 doses/day x 14 days = 56 tablets

[object Object],[object Object],[object Object],125 mg x (30 mL/2000 mg) = 1.875 mL 1.875mL x 4 = 7.5 mL/day 30mL x 1 day/7.5mL = 4 days

[object Object],[object Object],[object Object],(1g/1ml)/dose x 2 doses/day x 7days = 14 g or 14 ml 20,000 x 2 doses/day = 40,000 units/day

[object Object],[object Object],[object Object],¼ grains x 60 mg/grain = 15 mg ½ gr/ampule of 1mL x 60mg/gr = 30mg/ampule of 1mL 15mg/day x ampule of 1mL/30mg x 14days = 7 ampules

[object Object],[object Object],[object Object],5mL/tsp x 2tsp/dose x 3 doses/day = 30 mL/day 30mL/day x 7 days = 210 mL

[object Object],[object Object],[object Object],250mg/tablet x 2tablets/dose x 3doses/day = 1500mg/day 1500mg x (5 days + 15days) = 30,000mg 30,000mg x 1 tablet/250mg = 120 tablets

[object Object],[object Object],[object Object],[object Object],3L x 1000mL/1L = 3000mL x 1day/24hrs = 125 ml/hr 125mL/hr x 1hr/60 min = 2 ml/min 1ml = 15 gtt 2.083mL/min x 15gtt/mL = 31 gtt/min

15. The patient needs 30U of insulin, but the available stock is 80U. A. how much of the 80U will be given? 30U : 80U = x : 16 minims 80U (x) = 480U(minims) x = 6 minims B. If the stock is 100U, how much should be given to meet the patient’s needs? 30U : 100U = x : 16 minims 100U (x) = 480U (minims) x = 4.8 minims or 5 minims

[object Object],[object Object],[object Object],x : 3L = 1/500 : 1/300 1/300x = 3/500 x = 1.8L x 1000 = 1800 mL 2L : 3L = 1/500 : x 2x = 3/500 x = 3/1000 or 0.3 %

[object Object],[object Object],[object Object],1.25mg/kg x 55kg = 68.75 mg/dose 68.75mg/dose x 4doses/day x 7 days = 1925mg

[object Object],[object Object],[object Object],c. Find the infusion rate of the 1L solution in gtt per minute. 200mg/mL x 1000mL/1 L = 200000 mg/L 10 mcg/kg x 50kg = .5 mg 1L x (1000mL/1L)x (1mL/16drops) ÷ (8hrs x 60mins) = 31.25 gtt/min

[object Object],[object Object],[object Object],1 pint = 500ml 0.5 : 7 = 500 : x 0.5x = 3500 x = 7000ml 0.07 x 500 = 35 ml or 35 g

[object Object],[object Object],[object Object],2L x 1000mL/1L x 0.005 = 10g 2000ml – 10ml = 1990mL

22. A. How many mg of NaHCO3 solution would be needed to prepare 40 oz of 1:100 NaHCO3 solution? 40 oz/ 0.01 = 1200000/ 0.01 = 12000 mg B. How many mL of the 1:100 NaHCO3 solution was prepared? (Note: 1 oz = 30 mL) 40 oz (30 ml/1 oz) = 1200 mL

[object Object],[object Object],[object Object],[object Object],2.5g ÷ 0.15 = 16.67g or 16.67 mL 16.67 – 2.5 = 14.167 mL 7.5 ÷ 0.15 = 50 mL

[object Object],a. How much distilled water should be added to prepare the 10 ml solution? ,[object Object],[object Object],d. If given bid, how long will the prepared solution last? 10ml – 2 g or ml= 8 ml 10ml : 5000000 = 1 ml : x x = 500000 units 10ml = 5 g // 1mL = 200 mg 10ml ÷ 2 = 5 days

25. Methicillin sodium 1.5 g, IM, q12h, daily for 5 days, was prescribed for a systemic infection. 4 g of the medication is available as a powder in vial. Directions state to reconstitute with 5.7 mL of sterile water for injection and shake well. Solution concentration will provide 500 mg/mL. ,[object Object],B. How many mL of the drug should the patient actually receive per day? C. How many mg did the patient actually consume to complete the dosage? 1500 mL x ( mL / 500 mg) = 3 mL 3 mL x 2 = 6 mL 1.5 x 2 x 5 = 15 mL = 15 g = 15000 mg

Dosage Problems

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Similar to Dosage Problems

Similar to Dosage Problems (20)

More from Analin Empaynado

More from Analin Empaynado (8)

Recently uploaded

Recently uploaded (19)

Dosage Problems