1. The physican orders Phenytoin (Dilantin ) 1 gm, PO,loading does (LD) in three divided doses over 24-hours period. The safe parameter for a LD of Dilantin is 15-18 mg/kg. The patient wieghs 132 lbs. Dilantin is available in 100 mg capsules.
A.How much does patient weigh in kgs?
B. How many mgs would the patient recieve in 24 hours?
C. Is the dose within safe parameters? Explain why?
2. The physician orders Cytoxan 200 mg, PO, bid. Safe administration is 1-5 mg/kg/day. The patient weighs 100 lbs and the drug is available in 50 mg tablets.
A. How much does patient weigh in kgs?
B. Is the dose Cytoxan within the safe parameters?
Lol, oh no this is not my homework it is some problums that I have ran across and attempted to do but am not sure that I did them right. I am most confused on the wording in each problum. I had 66 problums to try and I am coming across a problum or two that I am not feeling confident about. My school did not give us problums to do to get ready for the math exam that is coming up the end of Aug 2008. They expect us to do it on our own. I can`t even get any teachers to tutor me this summer.
Okay, but you should still work out the math problems as much as possible.
Okay, I will help with the first question on problem #1. If you draw meds out of a rubber top vial which is what the first med is in, you inject air equal to what you need to draw out to remove some of the vacuum in the container, you don't do this with ampules. So first you inject 0.5 mL of air and draw up your first med and then you draw up the med in the ampule and discard it since it will be empty. Help? Have you drawn up meds yet? It is hard to answer these kind of questions if you haven't and the teachers should help you more on these questions since they really aren't math-based.
The rest of your answers are right...just break your problems down like Song did and you'll get it!
Specializes in med/surg, telemetry, IV therapy, mgmt.
sorry. i didn't realize you had added more problems to the post.
mrs. dawson dr. ordered a stat order for demerol 50 mg to be given im with 25mg of phenergan. the medications are compatable and both can be given in one injection. you have demerol 100mg/ml vials and phenergan 25mg/ml amples.
a. which medication should you draw up first?
the demerol
b. how many ml of each medication are calculated to be drawn into the syringe?
the demerol
: 50 mg (dose desired)/100 mg (dose on hand) x 1 ml (amount the dose on hand comes in) =
0.5 ml
(amount to draw into the syringe)
the phenergan
: 25 mg (dose desired)/25 mg (dose on hand) x 1 ml (amount the dose on hand comes in) =
1 ml
(amount to draw into the syringe)
c. what is the total amount of fluid in your syringe when both are into the syringe?
0.5 ml (the demerol) + 1.0 ml (the phenergan) =
1.5 ml
mrs jones dr. has written an order for 0.2mg of methergine im to be given every 2-4 hrs. to a maximum of 5 doses. the pharmacy sends the 0.2mg/ml ampules to the floor.
a. how much will you draw up for the first dose?
0.2 mg
(dose desired)
/0.2 mg
(dose on hand)
x 1 ml
(amount the dose on hand comes in) =
1 ml
(amount to draw up for the first dose)
b. calculate the total amount of methergine mrs. johns will recieve if she is given the entire five doses within the next 20.
if the amount of one dose is 1 ml, then 5 doses will be 5 x 1 =
5 ml
stated another way, if one dose is 0.2 mg, then 5 doses is 5 x 0.2 mg =
SarasotaRN2b
1,164 Posts
Okay, but you should still work out the math problems as much as possible.