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Introduction
For best results, Technegas must be administered to the patient as soon as possible after being generated, and certainly within the 10 minutes allowed. The patient should be prepared for administration during the Technegas generation process.
Administration to the Patient
For the administration of Technegas to a patient, Users should follow the details in the Package Insert for the Patient Administration Set (PAS) making reference to the Package Insert for the Pulmotec Crucible and the User-Manual as required
Select the desired mouthpiece and allow the patient to familiarise themselves with it during the preparation time of Technegas as described in the PAS Package Insert.
When ready, fit a nose clip to the patient to prevent the patient breathing through the nose. Patient posture affects the distribution profile of Technegas in the lungs in response to the gravitational effect on blood distribution.
Every effort should be made to ventilate the patient in the same posture as they will adopt for the MAA injection.
When the patient is prepared, press the START button to produce Technegas.Note that it is important to deliver the Technegas as soon as possible after it is generated.
Connect the open end of the tubing of the PAS to the generator by pushing it over the Technegas release port and locking the bayonet fitting with a small clockwise twist. Encourage the patient to breathe normally through the mouthpiece. Assure the patient at this time that they are breathing room air. Press the START button to release the patient delivery valve.
When the patient is comfortable and confident breathing through the mouthpiece, request them to exhale, then press down the patient delivery knob firmly as the patient begins to inhale.
Ask the patient to breathe in the Technegas described in the Mode of Administration section of the Pulmotec Package Insert using the breathing method best suited to the patient.
Watch the count rate and repeat this operation until the required activity is present in the lungs.
Release the delivery valve after the required activity is present, and allow the patient to breathe air again through the mouthpiece tube assembly. It is important for the patient to breathe through the PAS assembly for five to six breathing cycles after Technegas has been administered before removing it from the Technegas Generator to clear Technegas from the tubing and the patient airways.
After the patient has received the required amount of Technegas the patient valve should be released and the CANCEL button pressed TWICE in two seconds. The unit will then shut down.
