The order is digoxin 0.325 mg and the stock is 0.25 mg/tab.. how many tab/s to give?A. 2 tabsB. 3C. 1.5D. 3/4Per answer key the answer is 3/4 but no explanation. I want to know how did it come up to that answer. TnxThe order is dilantin 5 mg/kg in a 50 lbs patient to be divided in 3 equal doses. Stock is 125 mg/ml. Waht is the current amt to be administered?A. 3 mlB. 2C. 4D 2.0

Okami_CCRN, BSN, RN 865 Posts Specializes in Critical Care. Has 8 years experience. Apr 28, 2014 Remember that the formula is dose ordered/dose on hand multiplied by volume/tabs. So for number one you have .325mg/.250mg x 1 tab = 1.3 tab. Your book may have keyed that incorrectly. A way to check is see how much smaller or bigger your dose on hand is. In this case .250 is less than .325 so you know you're going to need at least 1 tab to get there. Convert 50lbs to kg, 50lbs/2.2= 22.72. then multiple 5mg x 22.72= 113.75. Now you can continue with the formula, 113.75mg/125mg x 1ml = .91ml

lucypill0229 6 Posts Apr 28, 2014 Hi okami i came up with the same answers but i'm just wondering why they are not included in the choices which makes me crazy like ___.

smf0903 844 Posts Apr 28, 2014 I am curious as to why you're getting 0.91mL for the second problem? If it's three divided doses wouldn't the admin amount be 0.3mL? (And it drives me crazy too when stuff is keyed wrong...though I understand things happen!)

chare 3,833 Posts Apr 28, 2014 Are you sure that you copied the questions correctly, as none of the answer choices you have provided are correct.

NICU Guy, BSN, RN 4,104 Posts Specializes in NICU. Has 8 years experience. Apr 28, 2014 I am assuming that the second problem should be 50 kg instead of 50 pounds. Unless your giving a pediatric patient Dilantin. 5 X 50= 250250/ 125= 2mL per day2/ 3= 0.67 mLnot one of the choices

Esme12, ASN, BSN, RN 4 Articles; 20,908 Posts Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma. Has 43 years experience. Apr 28, 2014 You need to check the questions...I think you typed something wrong.

RubberDuckieLove 163 Posts Specializes in Neuro Intensive Care. Has 1 years experience. Apr 28, 2014 Yeah....... none of the given choices are correct. I hate it when that happens.

lucypill0229 6 Posts Apr 28, 2014 To everyone: yeah i made sure i copied it correctly. I was thinking about it and wonder why its none of the choices.. anyway thanks for your effort guys. At least i know i'm not the only one who came up with a different answer.

Esme12, ASN, BSN, RN 4 Articles; 20,908 Posts Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma. Has 43 years experience. Apr 29, 2014 As far as I am concerned the answers are not in the choices.....check with your instructor...if she says the answer is there let us know how she figured the problem.

Guests Guest 0 Posts May 1, 2014 OP, regardless of what choices appear and what the answer key says, the correct answers to the questions posed are as noted below. Any deviation from the answers that I've provided are either an error of transcription or an error of calculation.Question 1: Answer = 1.5 tablets (as shown below)[TABLE=width: 253][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]1 tab[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]0.375 mg[/TD][TD=align: center]x[/TD][TD=align: center]----[/TD][TD=align: center]=[/TD][TD=align: center]1.5 tab[/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]0.25 mg[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][/TABLE]Question 2: Answer = 0.9 mL (as shown below)[TABLE=width: 244][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]1.0 kg[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]50 lb[/TD][TD=align: center]x[/TD][TD=align: center]----[/TD][TD=align: center]=[/TD][TD=align: center]22.7 kg[/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]2.2 lb[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]5 mg[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]22.7 kg[/TD][TD=align: center]x[/TD][TD=align: center]----[/TD][TD=align: center]=[/TD][TD=align: center]113.6 mg[/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]1.0 kg[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]1 mL[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]113.6 mg[/TD][TD=align: center]x[/TD][TD=align: center]----[/TD][TD=align: center]=[/TD][TD=align: center]0.9 mL[/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]125 mg[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][/TABLE]