How to give correct dosage of Lovenox

Nursing Students Student Assist

Published

Order is for 110mg. On hand is 220mg/0.8ml. I come up with 0.73ml. What is the correct dosage to give since this is a prefilled syringe of Lovenox. Only 3 lines in between each ml so it's hard to calculate 0.73ml. Would I just guessimate at 0.73 or round down to 0.72 instead?

Up Vote Up Vote ×
Order is for 110mg. On hand is 220mg/0.8ml. I come up with 0.73ml. What is the correct dosage to give since this is a prefilled syringe of Lovenox. Only 3 lines in between each ml so it's hard to calculate 0.73ml. Would I just guessimate at 0.73 or round down to 0.72 instead?

Your gonna give nearly twice the ordered amount. Correct dose is 0.4 ml.

Up Vote Up Vote ×
Specializes in Cardiology.

Your gonna give nearly twice the ordered amount. Correct dose is 0.4 ml.

Yeah, that. Can you show us your math so we can help you figure out where you're going wrong?

Up Vote Up Vote ×

sorry, I gave ya'll the wrong amounts. Half asleep. dose was 110 mg and on hand is 120mg/0.8ml. Answer is 0.73ml. My question isn't how to do the calculation, but what would you measure on the syringe. Would you guesstimate between 0.72 and 0.74?

Up Vote Up Vote ×

darajanan, if the dose is 110mg and you have 120mg/0.8ml on hand, your answer should not be .73mls. You should be giving half of the 0.8mls which would be 0.4mls. I think that is where we are confused. ?????Just trying to help and we can all understand being tired.

Up Vote Up Vote ×
Specializes in Acute Care, Rehab, Palliative.
darajanan, if the dose is 110mg and you have 120mg/0.8ml on hand, your answer should not be .73mls. You should be giving half of the 0.8mls which would be 0.4mls. I think that is where we are confused. ?????Just trying to help and we can all understand being tired.

110 is not half of 120.

Up Vote Up Vote ×
sorry I gave ya'll the wrong amounts. Half asleep. dose was 110 mg and on hand is 120mg/0.8ml. Answer is 0.73ml. My question isn't how to do the calculation, but what would you measure on the syringe. Would you guesstimate between 0.72 and 0.74?[/quote']

You would do 0.7. Guesstimating could kill a patient.

Up Vote Up Vote ×

refer back to your drug calculation formulas.

dose X Volume

On Hand

dose is 110mg divided by 120 mg on hand times 0.8ml of volume = 0.73ml

Up Vote Up Vote ×

I think it would be better to go with the closer dose of 0.72ml instead don't you?

Up Vote Up Vote ×
Specializes in floating.

the answer is 0.7. you cannot give an answer of 2 decimal places when your numbers only go to a tenth, google significant figures if you have questions.

Up Vote Up Vote ×
Specializes in Informatics; Telemetry/Med Surg.

Agreed.

Up Vote Up Vote ×

Besides, look at the difference in the dose and the prefill syringes they pack it in. It's not going to be clinically significant. 0.7ml it is.

Up Vote Up Vote ×
+ Add a Comment