Okay so I'm trying to wrap my head around these questions.
1) Patient is on Novolin 70/30 insulin. They receive 20 units sc bid. How many units of intermediate acting insulin do they receive per dose and how many units of short acting do they receive per dose?
2) Your patient IV is NS with 20 mEq KCL per liter running at 150 mL/hr. What is the fluid intake for a 24-hours period? And, how much potassium is being recieved over a 24-hour period?
Here's another question: Heparin 5000 units sc bid is ordered. the heparin supplied is multididose vials. How much of the following concentrations would you draw up to administer the correct dose?
25,000 units/ml. I calculated 0.2ml
10,000 units/ml. I calculated 0.5 ml
500 untis/ml. I calculated 10ml
If given these three concentrations which would you choose to give the patient?
I think that sometimes we get freaked out about the math in nursing, but it really isn't that bad. I HATE math. I took College Algebra 4 times before I passed (okay, it was 16 years ago) but I've found the nursing math to be fairly straight forward. You need to learn just a FEW concepts to manage it. I've found that on tests, if I can't remember the quick formula, I can figure it out by working the problem backwards. That's particularly true when doing gtts/min probs and such. Yes, it does get confusing, but I'm just saying that I think people get freaked out because people say "you use alot of algebra and math in nursing, etc." You do alot of math, but it's all calculations and there are many resources that give you a "math for dummies" approach to them that are very manageable. Some of the advice people gave you also applies to many of the NCLEX type questions we get in school. I.E. The problem never said you got ONE bag of NS. Yes, one bag is 1000 ml, but you can't assume that the order is for only one bag.
And we're all so lucky to have the people helping us students on this forum. Daytonite is at the top of the list, but thanks to all of the regular pros that help keep us from freaking out in NS. :bowingpur
Specializes in med/surg, telemetry, IV therapy, mgmt.
here's another question: heparin 5000 units sc bid is ordered. the heparin supplied is multididose vials. how much of the following concentrations would you draw up to administer the correct dose?
25,000 units/ml. i calculated 0.2ml
10,000 units/ml. i calculated 0.5 ml
500 untis/ml. i calculated 10ml
if given these three concentrations which would you choose to give the patient?
your calculations are correct. if given these three concentrations which would you choose to give the patient? i'd give the 10,000 units/ml concentration. the 0.5 ml will be easier to draw up and administer than 0.2 ml.
Keflex 400 mg po q8hr is ordered. Keflex oral suspension is supplied at a concentration of 125mg/mL. How many mL of suspension do we need to give? I calculated 3.2mL
How much Keflex does this patient get per day? (total dose per day)
I calculated 1200 mg/day
Your patient is a toddler with otitis media who weighs 16 kg. Would this dose be safe?
I think "yes" when given in 4 divided doses per day as therapy for otitis media requires dosage of 75 to 100 mg/kg/day in 4 divided dose for medication to be therapeutic.
Specializes in med/surg, telemetry, IV therapy, mgmt.
I am now working on some pediatric calculations.
Question
Keflex 400 mg po q8hr is ordered. Keflex oral suspension is supplied at a concentration of 125mg/mL. How many mL of suspension do we need to give? I calculated 3.2mL
How much Keflex does this patient get per day? (total dose per day)
I calculated 1200 mg/day
Your patient is a toddler with otitis media who weighs 16 kg. Would this dose be safe?
I think "yes" when given in 4 divided doses per day as therapy for otitis media requires dosage of 75 to 100 mg/kg/day in 4 divided dose for medication to be therapeutic.
16 kg child x 100mg/kg/day = 1600 mg/day
You also posted this on The Nursing Math Thread and I answered there. Unless the 75 to 100 mg/kg/day figure was given to you, the 400 mg ordered dose is too much for this child. On a test your instructors will probably want to see your calculations of the low and high dose ranges, as well.
wondergirlhere
14 Posts
Here's another question: Heparin 5000 units sc bid is ordered. the heparin supplied is multididose vials. How much of the following concentrations would you draw up to administer the correct dose?
25,000 units/ml. I calculated 0.2ml
10,000 units/ml. I calculated 0.5 ml
500 untis/ml. I calculated 10ml
If given these three concentrations which would you choose to give the patient?