Obstetrics_Dosage_Calculation_Worksheet

1. Magnesium sulfate 30 grams is mixed in 500 mf Lactated Ringers. Order: infuse a maintenance dose of magnesium sulfate @ 4 grams/hour. How many ml/hr will the IV run? Magnesium Sulfate; 30 grams in 500 ml lactate ringer = 30/500 = 0.06 grams/ml Order; 4 grams/hr = 4/0.06 (As the concentration is 0.06 grams/ml) = 66.666 ml/hr should run the IV 2. Begin a Pitocin infusion at 5 mu/min via IV pump for labor induction. On hand is Pitocin 40units in 1000ml Lactated Ringers. How many ml/hr will the IV run? 8ml/hour (Pitocin infusion rate via IV pump = 5mu/min Pitocin lactated ringers = 40 units = 5 mu / 40,000 milliunit X 1000mL = 0.125 ml/min = multiply by 60 min = 0.125 x 60 ml/hr = 8ml/hr 3. The nurse notes the patient's IV pump is set at 10ml/hr. The IV bag holds 30 units of Pitocin mixed in 500ml of Lactated Ringers. How many mu/min is the client receiving? Given that, the IV pump is at the flow of 10 ml / hr The 500 ml IV is diluted with 30 unit of the drug. hence the 1 ml has 0.06 unit ( 30 / 500 = 0.06) Here the 1 hr the flow is 10 ml, it means 0.6 units per hour. Hence for 1 hour the flow is 0,6 units, then for 1 minutes it would be 0.01 units. Therefore the client is receiving 0,01 units per minute,, If we convert the unit into mu it would be 0.00001 mu Therefore the answer is 0.00001 mu / mins. This study source was downloaded by from CourseH on 07-05-2022 08:21:37 GMT -05:00 https://wwwcourseherocom/file//SLopezObstetricsDosageCalculationWorksheet01docx/ 4 . The order reads: begin the infusion of Pitocin at 6mu/min. On hand - 30 units of Pitocin mixed in 500 ml of Lactated Ringers. How will you set the pump? Ordered Pitocin at 6 mu / min. 1 unit=1000 mu On hand is 30 units of Pitocin mixed in 500 ml which means 30000 mu in 500 ml Means 60 mu/ml 60 mu in 1 ml 1 mu in = 1/60 ml 6 mu will be present in = (1/60) X 6 ml = 0.1 ml Therefore the infusion rate will be= 0.1ml/min = 6 ml/hr 5 .The order reads: begin a Pitocin infusion @ 3mu/min. You have on hand Pitocin 30 units in 500ml of Lactated Ringers. How should you set the pump? Ordered dose 3 milliunits/ min 180 milliunits/hour The given Pitocin is 30 units in 500 mL (30,000 milliunits in 500 ml) 1,000 milliunits = 1 unit We have a solution of 30,000 milliunits of Pitocin in 500mL - 180 milliunits ________ 180/30,000 x 500 = 3 3 mL/hr of 30 units in 500mL pitocin should be given This study source was downloaded by from CourseH on 07-05-2022 08:21:37 GMT -05:00 https://wwwcourseherocom/file//SLopezObstetricsDosageCalculationWorksheet01docx/ 6. You have on hand Magnesium Sulfate 40 grams in 500ml of Lactated Ringers. The order is to infuse a maintenance dose of Magnesium Sulfate @ 1 gram/hour. How many ml/hr will you run the IV? Ans) 40 gms MgSO4 = 500 ml of Lactated Ringers 1 gms = x x= 500 × 1/40 = 1000/40 = 12.5ml/hr The IV pump to be set at 12.5 ml/hr. 7. Begin a Pitocin infusion at 7mu/min via pump for labor induction. On hand is Pitocin 30units in 1000ml Lactated Ringers. How many ml/hr will you run the IV? Here the given drug is in the dilution of 30 units in 1000 ml. Here the flow rate is given in 7 mu / min. It can be defined as 0.007 units / minutes. So per minutes 0,007 units are providing, hence for the one hour it would be 0.42 unit Hence the flow is 0.42 units per hour it was begin. But the present drug dilution is 30 units per 1000 ml. Hence 1 ml contain 0.03 units. Here the total amount need to provide would be 0.42 units 14 ml ( 0.42 / 0.03 = 14 ). Therefore the IV should be run at 14 ml / hour. 8. The nurse notes the patient's IV pump is set at 120ml/hr. The IV bag holds 20 units of Pitocin mixed in 500ml of Lactated Ringers. How many mu/min is the patient receiving? 80 mu/min This study source was downloaded by from CourseH on 07-05-2022 08:21:37 GMT -05:00 https://wwwcourseherocom/file//SLopezObstetricsDosageCalculationWorksheet01docx/ 9. The nurse notes the patient's IV pump is set at 101/hr. The IV bag holds 40 units of Pitocin mixed in 500ml of Lactated Ringers. How many mu/min is the patient receiving at this time? The rate of IV pump is 10liters / hr The volume in the IV bag is 40 units of Pitocin in 500 mL of Ringer’s lactate 500mL of fluid contained 40 units or 40,000 mu of Pitocin The 500 mL can be admin. Over a period of 3 min, which means the pt. is taking 40,000 mu of Pitocin per 3 min. Therefore the rate per min is 40,000/3min = 13,333.3 mu/min 10. Administer a dose of Vitamin K (Aquamephyton) 0.5mg. Available: Vitamin K 1mg/1ml. How many mis would you administer? 0.5 mL