Wasting Morphine Medication Calculation Problem | allnurses

Wasting Morphine Medication Calculation Problem

  1. 0 Hey guys I wanted some help with this question: The doctor prescribes 4 mg of I.M. morphine every 3 hours for your patient's pain. The drug is available in a prefilled syringe containing 10 mg of morphine/mL. How many milliliters of morphine should you waste?
    I understand that you should give 0.4mL to the patient but how much do you waste? If anybody could help me understand this part of the question I would really appreciate it. Thanks guys
  2. Visit  dukegurl profile page

    About dukegurl

    Joined Jan '13; Posts: 2.

    4 Comments so far...

  3. Visit  cole804 profile page
    you would have 0.6ml left
  4. Visit  JBudd profile page
    You didn't say how many mL are in the syringe. Not all concentrations are the same. If this is 10mg/mL, then you would subtract what you give from the total you started with. Whatever is left over is what you waste.

    10 mg/mL, give 0.4, waste 0.6.

    Some prefilled syringes are 4mg/mL, some are 2mg/mL. You have to read the labels very carefully.
    Fiona59 likes this.
  5. Visit  dukegurl profile page
    Thanks guys that really helped
  6. Visit  JBudd profile page
    You're welcome, and looking back a 2nd time, ah, you did say per mL. oops.

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