College

1. Give 60 mg enoxaparin SQ BID. How many mL do you give per dose if 60 mg is available?

2. Infuse 2.55 L of [tex]$\frac{1}{2}$ NS[/tex] with 20 mEq KCL over 15 hours. How many [tex]$ml/hr$[/tex] do you program the pump for?

Answer :

Sure! Let's break down the solution for each part of the question step-by-step.

Part 1: Enoxaparin Dosage Calculation

1. Dose ordered: The prescription is for 60 mg of enoxaparin to be given subcutaneously twice a day (BID).

2. Available concentration: You have enoxaparin with a concentration of 75 mg/ml.

3. Calculate the volume to give per dose: To figure out how many milliliters to administer per dose, you divide the ordered dose by the concentration.

[tex]\[
\text{ml per dose} = \frac{\text{dose ordered (mg)}}{\text{dose concentration (mg/ml)}} = \frac{60 \text{ mg}}{75 \text{ mg/ml}} = 0.8 \text{ ml}
\][/tex]

So, per dose, you would give 0.8 ml of enoxaparin.

Part 2: Infusion Rate Calculation

1. Volume to infuse: The total volume to infuse is 2.55 liters of 1/2 NS with 20 mEq KCL.

2. Convert the volume to milliliters: Since there are 1000 milliliters in a liter, you would convert the volume from liters to milliliters.

[tex]\[
\text{infusion volume (ml)} = 2.55 \text{ L} \times 1000 \text{ ml/L} = 2550 \text{ ml}
\][/tex]

3. Infusion time: The infusion is to be completed over 15 hours.

4. Calculate the infusion rate: To find out how many milliliters per hour to program the pump:

[tex]\[
\text{ml/hr} = \frac{\text{infusion volume (ml)}}{\text{infusion time (hr)}} = \frac{2550 \text{ ml}}{15 \text{ hr}} = 170 \text{ ml/hr}
\][/tex]

Therefore, you should set the pump to infuse at a rate of 170 ml/hour.

In summary:
- You give 0.8 ml of enoxaparin per dose.
- Set the infusion pump at a rate of 170 ml/hr.