One of the important things in the laboratory is also to identify urgent samples, for example, theatres, A&E, resuscitation, pediatric intensive care. And for that reason, we have a dedicated analyzer which we use to get these results out quickly, whereas a track will accommodate or routine samples and impatience within the timeframe. But with the A&E, we have a timeframe of one hour, that includes receiving the sample and processing. Where is the sample on the track? It could be several hours. The other thing we do is auditing. So we continuously auditing samples. So every time a sample comes into a laboratory, it gets stamped. Which is anything that is urgent will get stamped, behind delivered will get stamped. So that will include date and a time when we receive it. So if there is any call about we know exactly what time we receive the sample. This is an integral part of the laboratory day to day working within a laboratory. As you can see, there is a member of staff there, what she is doing is looking in samples that arrive within the laboratory. The forms are pink in color, which indicate there are urgent samples and usually impatience within the hospital. What she has to do is identify what samples they are, what tests they are, and then using different colored barcodes, she has to correctly label the tube that has that barcode on and then book them into the system. This is very, very important as the samples will then get analyzed according to the barcode. So a pink barcode will be an EDT or a full black count test, which is for the hematology. A brown barcode will go into the brown gel bottle, which is for biochemistry. Some samples are required for centrifugation. That is for the test to be analyzed. For example, the biochemistry sample, the gel ones, we are using serum sample. That means a sample that has been quoted, whereas for coagulation, which is a green top sample, which we need the plasma, which means the clutting factors are still present, and there is a huge difference between both samples. That is why the sample requirement is crucial for the test, the probi test required by clinicians. As you can see, this is approximately 100 samples of coagulation samples. These are all green top used primarily for testing INAS, which is INAS International Normalized Ratio for patients who are on treatment for warfarin. Warfarin is rap poison, which is used to thin block down. In normal patients, we would not need, not an INAS would be normal, but the patient who is got condition such as DVT, they have a tendency to clot rapidly causing severe pains in the legs and arms, wherever a clot has dislodged. So we are using warfarin, which sends a blood down, which prevents these clot from regularly occurring, so it prolongs the patient's life. The downside is that they need to be weakly monitored so that they can be dose appropriately. And obviously, warfarin being a drug can be affected by other factors such as alcohol, paracetamol, anything that affects the liver will affect the INAS or the warfarin dose, and that is why they have to be regularly tested.