ITC Hemochron Response Whole Blood Coagulation System User Manual
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5.
Press YES. The information is stored and the Additional Heparin Dose screen is displayed:
Note: AddlHep is the calculated additional heparin dose (in heparin units). The PRT test
tube that should be used for determining the protamine dose is also indicated.
6.
If the additional heparin dose that was administered is different than that calculated, press 1 to
display the edit screen, enter the HepGvn value, and press YES to store the actual value.
Important: The HepGvn value is used to report the total amount of heparin given. Be sure
that the actual value is entered if it is different than the calculated value.
7.
Press YES. The additional heparin dose information is stored and added to the total heparin given for
the case. Then, the RxDx System screen is displayed.
Entering Pump Heparin
Heparin used in a device (such as a pump) can be included for an accurate PRT tube identification.
1.
Display the RxDx System screen.
2.
Press 4. The Total Heparin Given screen is displayed:
3.
Press 1 to display the pump heparin edit screen.
4.
Enter the amount of heparin (in heparin units) used in the device.
5.
Press YES. The pump heparin information is stored and added to the total heparin given for the
case. Then, the RxDx System screen is displayed.
Determining the Protamine Dose
When surgery is completed, a PRT test is performed. The results of this test and the most recent ACT test are
used to determine the dose of protamine that is required to reverse the effects of the administered heparin.
Note: Use a PRT200 (peach top) test tube if the total heparin given is equal to or less than 6.5 units
per mL of blood volume. Use a PRT400 (red top) test tube if the total heparin given is greater than 6.5
units per mL of blood volume.
Heparin used in a connected device (such as a pump) can be entered by the operator so that it is included
in the calculation for PRT tube selection.
Note: Refer to the appropriate test package insert for information on required sample volume,
procedures for sample addition, mixing, and running the test.
1.
Dispense the patient sample into the PRT test tube and simultaneously press the START key.
2.
Mix the contents of the test tube.
3.
Insert the test tube in the well.
4.
Upon clot detection, the information is displayed on the Prot Dose Calc screen:
Note: ProtDose is the calculated protamine dose.
5.
If necessary, enter or edit Target ACT, Status ACT, or the measured PRT results by pressing the
corresponding numeral key to display the edit screen, entering the value, and pressing YES to store
the value. Press 4 to display Hep in alternate units (mg/kg body weight or Units/mL blood volume).