Questions: A client has a heparin drip infusing at 2100 Units/hr. The concentration of the drip is 25,000 Units heparin in 250 mL NS. The latest PTT result calls for an adjustment to the drip of decreasing the drip by 2 mL / hr. What will the pump be set on after the adjustment is made?

A client has a heparin drip infusing at 2100 Units/hr. The concentration of the drip is 25,000 Units heparin in 250 mL NS. The latest PTT result calls for an adjustment to the drip of decreasing the drip by 2 mL / hr. What will the pump be set on after the adjustment is made?

Transcript text: A client has a heparin drip infusing at 2100 Units/hr. The concentration of the drip is 25,000 Units heparin in 250 mL NS. The latest PTT result calls for an adjustment to the drip of decreasing the drip by $2 \mathrm{~mL} / \mathrm{hr}$. What will the pump be set on after the adjustment is made?

Solution

Solution Steps

To solve this problem, we need to determine the current infusion rate in mL/hr and then adjust it by decreasing it by 2 mL/hr.

Calculate the current infusion rate in mL/hr using the given concentration.
Subtract 2 mL/hr from the current infusion rate to get the new rate.

Step 1: Calculate the Current Infusion Rate in mL/hr

Given:

Current infusion rate: $ 2100 $ Units/hr
Concentration: $ 25000 $ Units in $ 250 $ mL

The current infusion rate in mL/hr can be calculated as: \[ \text{Current infusion rate (mL/hr)} = \left( \frac{2100 \, \text{Units/hr}}{25000 \, \text{Units}} \right) \times 250 \, \text{mL} \] \[ \text{Current infusion rate (mL/hr)} = 21.0 \, \text{mL/hr} \]

Step 2: Adjust the Infusion Rate

The adjustment required is a decrease of $ 2 \, \text{mL/hr} $.

\[ \text{New infusion rate (mL/hr)} = 21.0 \, \text{mL/hr} - 2 \, \text{mL/hr} \] \[ \text{New infusion rate (mL/hr)} = 19.0 \, \text{mL/hr} \]