31st DaY of AtTaChMeNt

Continued from where i stopped yesterday by doing checking for transport physiologic monitor from welch allyn ( propaq and propaq encore).
These are the things that i have done:

• plug in the SpO2 probe to make sure it is in working condition by checking the infra red sensor and test it on my finger
• Testing the monitor's ability of producing the desired waveform that i chose in the patient stimulator.
• Using the non-invasive blood pressure monitor tester to check the accuracy of the monitor in terms of systolic, diastolic and mean in mmHg.

After that, i double check on the autovent3000 (resuscitators) and found out there is one of them was unable to deliver the correct amount of air to the gas flow analyzer. It shows signs of leaking around the patient valve so i went to Mr Sin for guidance and the cause of the leaking is due to the diaphragm not placing properly and dirt stuck on the one way valve that causing it to open. After Mr Sin placing the diaphragm properly, the resuscitator seems to be working fine. This is the most common problem. Check valve has the same property as the one way valve in the patient valve and it has a stick-like thing that forces the valve to open to allow air which flowing at the direction that the stick is facing to flow in while forcing it to close when air is flowing at the opposite direction.

Thankfully, i am able to complete the checking before having my lunch as AH staff will be collecting it in the afternoon.

Checking the ventilators from SAF by comparing the tidal volume and breath rate from the tester with the desired values that you set for the volume delivered and frequency in bpm. Tidal volume in litres is volume delivered divided by frequency.

In the Afternoon..............................

I did the preventive maintenance of the automatic blood pressure monitor with some guidance from Lee Chong.

The tests that we carried out:

• overpressure test
• pressure check
• simulation test
• pressure leakage test

The first two tests, i have to wrap the cuff on a bottle that it able to withstand the pressure and used a 3 way connector to connect the monitor with the cuff and NIBP monitor tester. Usually, we only do the first three tests. For pressure check, we will check whether the pressure generated by the monitor is able to go up to the desired value that is stated in the tester. Secondly, for the simulation test, we have to compare the readings that we get from the monitor for systolic, diastolic and mean with the standard values in the tester. The accuracy must be with in the range of +/- 10% of the value.

Lastly, quoted the LCD display module for the PCA pump. Met up with some problem as the part number for it is totally different in singapore compared to uk so Mr Ong had to fax us the diagrams and part number of the components. Mr Ong said that we have to buy the whole assembly which is the whole circuit board that is equalvient in buying the whole device. Luckily, they have the module that i wanted and save a lot of money too.