For example: 0.126 would be rounded off to 0.13mL. Carry out your calculations to the third space and round off to the second space for your doses under 1mL. When the amount to be administered is under 1mL, use a TB syringe (1mL syringe). Some additional rules to always follow: 1. If you need more detailed directions on these formulas, refer to your Pickar Dosage Calculations book This will give you the dose/minute, which you must multiply by 60 to get the hourly rate to set the pump at. 100mL 30 min 200) = X mL 60 minutesįor Pitocin and Ritodrine problems use formulas one or two. Infusion pump at hourly rate: Total mL ordered = mL/hour Total hour ordered Infusion for less than one hour by infusion pump use ratio and proportion mL to infuse_ time to infuse in minutes = X mL 60 minutesįor example, using the same problem above, but giving Ampicillin by pump. You set your drip rate at _ drops/minute 100mL x 15 = drops per minute 30 minutes (answer 31) Round off to a whole number Pharmacy sends up 100mL bag with Ampicillin 1 gm to be infused over 30 minutes. Example: Doctor orders 1gms of Ampicillin to be given. For example: mg = mg mL X mL Must convert doses before placing in formula. To arrange the ratio proportion correctly, the same units must be placed on top and the same units must be place on the bottom. Must convert doses is problem before placing in formula. and Quantity, then divide by Dose Orderedĭose Ordered x Quantity you Have = X Dose you Have IV Formulas Infusion by drip chamber mL to be given(volume) x drip factor time in minutes PRACTICE MATH FOR NURSING 333 Instructor: Tricia Wickers Know the following equivalents: Metric 1L = 1000mL 1gram=1000mg 1mg=1000mcg or 0.0001g 1kg=1000grams 1 unit=1000 miliunits Apothecary 1T=3t 1cup=8oz 1pound=16oz Approximate both systems 1g=gr15 gr1=60mg 1t=5mL 1oz=30mL 1kg=2.2 poundsĬommon Formulas Dose Ordered = Quantity desired Volume on hand X volume Cross multiply Vol.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |