EMTprep Free Training Materials

Our Free Training Materials include articles, test day tips, study guides and training videos as well as words of advice for both your NREMT journey and EMS career.


Training Categorized: Medication Math

            Dopamine works in the body by binding to alpha 1 and beta 1 receptors to increase peripheral arterial and venous constriction and increase cardiac contractility and heart rate. Alpha 1 receptors are found in smooth muscle vasculature and control vasoconstriction and Beta 1 receptors are typically found in the heart and control inotropy and chronotropy. In lower doses from 1-5 mcg/kg/min it mostly affects the renal arteries and in doses from 5-20 mcg/kg/min, it increases its inotropic and chronotropic effects on the heart and systemic vasoconstriction. This is important because in lower doses it does not affect cardiac contractility and may...

Med Math 101: The Basics Everyone Should Know

Trust us, you need to know this stuff…

The Units of Measurement

In the EMS setting, we worry about three metric units of measurement…

  1. Grams (g) – weight
  2. Meters (m) – distance
  3. Liters (L or l) – volume

Attached to these units of measurement will be one of the following…

  1. Kilo – one thousand (1,000)
  2. Centi – one hundredth (.01)
  3. Milli – one thousandth (.001)
  4. Micro – one millionth (.000001)

Now let’s combine the two…

  • Kilogram (kg)
  • Gram (g)
  • Milligram (mg)
  • Microgram (mcg)
  • Centimeter (cm)
  • Liter (L)
  • Milliliter (ml)

Metric System Practice Problems

Tip: If...