Charm 3 Sl3 Flashcards
What is the required temperature for the Charm 3 SL3 incubator?
56 ± 1° Celsius
Regular temperature checks are necessary.
How often should daily control checks be performed?
Every 24 hours
This includes checking the serial numbers and control values.
What should the Negative control be greater than?
-600
This is part of the control checks.
What should the Positive control be greater than?
+400
This is part of the control checks.
What should you do if the calibrator is out of range?
Contact tech support
Immediate action is required to ensure accuracy.
How long can a Negative control sample be stored?
Up to 72 hours
Storage conditions are critical for sample integrity.
How long can a Positive control sample be stored?
Up to 48 hours from the make sample date and time
Proper timing is essential for accurate results.
At what temperature can frozen negative and positive control samples be stored?
≤ -15 degrees Celsius
They can be stored for up to 2 months.
What is the recommended fridge temperature for storing samples?
0-4.5 degrees Celsius
This ensures the samples remain viable.
What is the procedure for agitating the milk sample?
Agitate 25 times at a 1 foot arc within 7 seconds
This helps in mixing the sample properly.
What should you do to avoid foam when drawing up the milk sample?
Allow foam to settle or tilt the sample
Excess foam can affect measurement accuracy.
How should the pipette tip be inserted into the milk sample?
Insert 1 cm into the milk sample
This minimizes the risk of drawing foam.
What should be ensured when drawing up a milk sample with a pipette?
No foam on the outside of the tip
Foam can increase the volume dispensed.
What does a Negative or zero reading on the reader indicate?
The sample is NF (Not Found)
This means no contaminants were detected.
What does ‘Found’ indicate in the context of testing?
There could still be minute traces of antibiotics in the sample but not enough to be detected with the Charm reader.
What should be done if there is a positive reading on the reader?
The sample is an Initial Positive.
What should you do if there are issues with the equipment?
Call tech support, especially if a supervisor is not around.
What is important to study when running a test?
The whole procedure of running a test.
What should you check on the test strip after it comes out of the incubator?
Whether the strip is invalid, Positive, or negative.
What is the purpose of the packet in the canister?
It is the desiccant packet for moisture control.
What are the first two steps to take when you get an Initial positive?
- Run your daily controls and contact supervisor
- Run 2 more strips of the same sample.
If the 2 samples run after an Initial positive are both negative, what is the conclusion?
The sample is good.
If the 2 samples run after an Initial positive are both positive, what is the next step?
Go to the 4th step.
What is the 4th step after receiving a positive result?
Get all producer samples and paperwork.
