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Discussion

Please help

can someone please help me out with these problems. I cannot figure out the answer. I need to no these answers ASAP if anyone can help me out it will be greatly appreciated.

1) Your patient is ordered cefuroxime 1.5 grams. This is to be added to 100ml of normal saline. The medication avalable is cefuroxime 750 mg per 10 ml . How many mls of the medication should be added to the bag?

2)Patient is to recieve dilantin 10mg/kg/day, in evenly divided doses every 12 hours. The patient weighs 165lbs. How many mgs should the patient recieve per dose

3)the patient is to receive dexamethasone 5mg IV at 1800. On hand is dexamethasone 2mg/ml. How many mls should the patient receieve?

4)your patient is to recieve nitroprusside 50 mg in 500 ml d5w and is ordered to run at 175 mcg/minute. How many mls should the patient recieve in one hour?

5)aminophylline 300 mg in 500ml d5w is to be infused over 8 hours. you have aminiphyline 1000mg/20ml. How many mls of aminophylline should be added to the bag of D5W

6)the patient is to recieve amidorone 360 mg over 6 hours at a rate of 1 mg per minute. How many mgs should the patient revieve in one hour?

7)pt with chf is to recieve a blood transfusion. blood bank releases the first bag with 180 ml to be given at 60ml/hour. The blood is hung at 1830. By what time should the blood transfusion end?

8)pediatric patient with CHF. recommended theurpatic dose of digoxin is 20-35 mcg/kg/day. Patient wieghts 44 pounds. Digoxin comes in 0.25mg per ml. What is minimim amount in mls that your patient can receive?

9)Patient is to receive dilantin 20mg/lg/day in three equally divided doses over the next 24 hrs. This is to be followed by a maintenance dose of 5mg/kg/day in three equally dived doses every 8 hours. The patient wiegs 165 pounds. How many mg of the dilantin should the patient recieve per dose on day one?

10)bases on the information given in question 9, how milligrams of maintenance dose of dilantin should the patient recieve per dose?

thank you!!

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    75 kg. What formula is best used to figure out mg.

    20mg/kg/day (/) 3 = 5/x?

    Where are you getting 5/x from?

    You have figured out that your patient weighs 75 kg. So 20 mg * 75 kg = the daily dose. Then divide by 3 and you have your answer. I do not know why you would divide this answer into 5.

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    • Author

    let me figure this out , thank you guys!

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    let me figure this out , thank you guys!

    For the aminophylline question, 6 mL is the correct answer.

    For the digoxin problem:

    The minimum dose is 20 mcg/kg/day. Your patient weighs 20 kg, so his minimum daily dose is 400 mcg. Your concentration is 0.25 mg/mL... what is that in mcg/mL? Once you figure that out, you can divide and get your answer. The answer is not 2.

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    400 mcg convert into mcg/ml? convert the 400 mcg into mg and divide the 400/0.25?

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    answer is 1.6?

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    and number 10. 500 mg multiply by 5 mg/kg/day = 2500 kg/day. 2500/3=833 mg per dose? doesnt make sense to me

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    400 mcg convert into mcg/ml? convert the 400 mcg into mg and divide the 400/0.25?

    I would convert the 0.25 mg into mcg but it's six of one, half a dozen of the other. You divide after you've done the conversion, so either 400 mcg divided by 250 mcg/mL or 0.4 mg divided by 0.25 mg/mL. Either way your answer is 1.6 mL.

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    and number 10. 500 mg multiply by 5 mg/kg/day = 2500 kg/day. 2500/3=833 mg per dose? doesnt make sense to me

    Not exactly. Where are you getting 500 mg from? If you multiply 500 mg by mg/kg/day it doesn't give you mg/day it gives you mg SQUARED/kg/day. I don't know where you got 500 mg from at all though.

    Your patient needs to take 5 mg/kg/day. His weight is 75 kg. So 75 kg x 5 mg/kg/day = X mg/day?

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    thank you :)

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    well I got 500 from dividing 1500 which was the daily dose in question 9 and divide that by 3

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    well I got 500 from dividing 1500 which was the daily dose in question 9 and divide that by 3

    No, that's not what the question was asking. 500 mg was the amount per dose on the day that the patient was receiving his loading dose.

    Let's review the scenario you provided again:

    Patient is to receive dilantin 20mg/kg/day in three equally divided doses over the next 24 hrs. This is to be followed by a maintenance dose of 5mg/kg/day in three equally dived doses every 8 hours. The patient weighs 165 pounds. How many mg of the dilantin should the patient receive per dose on day one? (question 9)

    Question 10 asked how much the patient should receive per dose when he is receiving maintenance dosing. Forget anything you answered in question 9 as it is no longer relevant. The loading dose only applies to the first 24 hours.

    Now you start over again to determine maintenance dosing: 75 kg x 5 mg/kg/day = X mg per day and then you divide by 3 to get your dose since the patient will take this medication TID.

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    number 6 would be 60mg per hour. number 7 would end at 2130.

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