Tell Me: Why Do We Need To Learn Algebra? - page 2

This may seem like a silly question, but I would really like a serious answer. Thanks!!! :hottub:... Read More

  1. by   PHTLS
    Quote from jamielynn
    this may seem like a silly question, but i would really like a serious answer.

    thanks!!! :hottub:
    a client is ordered 45 mg of loxapine by intramuscular injection. 50 mg in 1 ml of liquid for im injection is available. how many mls will you administer?the formula to use is:

    required dose stock volume--------------------- x --------------------stock dose 1

    = volume to be given

    the numbers are now placed in the formula:

    45 mg (required dose) x 1 ml ------------------------------------------- 50 (stock dose) x 1= 0.9 ml

    and this:

    celsius to fahrenheit: c x 9/5 + 32

    fahrenheit to celsius: f - 32 x 5/9

    1) convert 37c to fahrenheit.

    37c x 9/5 + 32 = 98.6f

    2) convert 98.6f to celcius.

    98.6f - 32 x 5/9 = 37c

  2. by   Grindin26
    lol... I'm surprised by some of the responses. We're talking basic algebra as far as dosage calculations are concerned.

    Dosage calculations will be waiting for you everyday, whether it's reconstitution, IV's etc.

    Just keep practicing, and visualize the concepts. Otherwise it'll keep haunting you.

    Be glad its not full on algebra, that'd warrant more of a complaint.
  3. by   tothepointeLVN
    My theory is since accurate med calculations are important but the calculations aren't as hard as a regular algebra course is they want you to have math competency above and beyond what is required since you need to be right 100% of the time.

    Fellow students who did not take math before my LVN program struggled with the math and still do a year later.

    Also many schools and states require math as a graduating requirement plus you NEED it for chemistry.