# IV Drip Rate Calculations

We all know that the "titrate to effect" works oh so well in the field when treating patients, right? Truth is we may get by with it - but, we could do ourselves and our patients some good by reviewing, practicing and using theses important formulas for IV infusions.

## Let's get started with some review

### Here are the BIG 3 formulas for calculating IV drips

To calculate an IV drip rate based on the volume of fluid to be infused over time.

Drops per minute = |
Volume to be infused in cc X Drop factor of IV set |

Time in minutes |

To calculate an IV drip rate for a medication that is administered based on a specified dosage to be infused per minute

Drops per minute = |
Dosage per minute to be administered X Drop factor (60) |

Concentration of medication per ml |

**Hint:** Make sure the unit measurement of the concentration and the dosage are the same.(e.g. both in milligrams)

To calculate an IV drip rate for a medication that is administered based on a specified dosage per kilogram of body weight per minute

Drops per minute = |
Desired dosage per minute X Weight in Kg X Drop factor of IV set |

Concentration of medication per ml |

**Hint:** Make sure the unit measurement of the concentration and the dosage are the same.(e.g. both in milligrams)

## Other handy items to review

Convert pounds to kilograms: Divide pounds by 2.2

**1 gram = 1000 milligrams**

**1 milligram = 1000 micrograms**