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What is the difference between reagent blank and sample blank?
Reagent Blank : Take reagent and add deionised water (in place of sample to be tested). Now measure the OD at specific wavelength --> this OD is your reagent blank. Substract this OD from your test result (with sample) to avoid any false +ve effect due to colour of reagents itself.Sample Blank : Take sample and measure the OD without adding reagents --> this OD is your sample blank. Substract this OD from your test result to avoid any false +ve effect due to colour and turbidity of sample itself. As it is the fact that colour and turbidity of each sample would vary from one to another.So now it is clear that Reagent blank is used to avoid bias due to colour of reagents and Sample blank is used to avoid bias due to sample itself.
What is the difference between sample and sample size?
a sample is a sample sized piece given... a sample size is the amount given in one sample
What is a experimental sample?
An experimental sample is an experiment that is just a sample of what you are looking for.
What is the sample size for a household population of 32787?
The sample size can be any number that you choose based on a number of criteria.Factors to consider include:How large a sample you can afford. Sampling does not come free, nor does data cleaning, data processing etc.How quickly you need an answer.How variable you expect the answer to be (you could be wrong, but a rough idea will help decide on the sample size).Whether or not the characteristic that you want to look at is rare. For example, you'd need a bigger sample to find even one occurance of a household in which someone had some rare allergy.The consequences of getting the answer wrong. Why spend huge amounts of money to find out what colour cars they own.
Why Benedict test is semi quantitative?
Benedicts solution changes through a range of colours (blue, green, orange, red) according to how much reducing sugar is present in the sample. This can be used to give a rough answer to the question "How much sugar is in the sample?", but is not accurate enough (because of the blending between one colour and the next), to be called a quantitative test.
What it the normal aptt time?
Therapeutic range for aPTT is 45-75 seconds.
Why sample oil with metal cans?
Because a plastic bottle can contaminate the sample; and a glass bottle is fragile.
What color tube will you draw a Aptt?
A blue-top tube (citrate tube) is used for collecting blood samples for the activated partial thromboplastin time (APTT) test.
What is the mass (by difference) of a sample if the initial mass of the sample in the bottle was 28.81-g and the final mass of the bottle and sample was 21.33-g?
7.48
What color tube for aptt?
The color of the tube commonly used for APTT (Activated Partial Thromboplastin Time) is light blue.
What colour is the iodine in the bottle?
The color of iodine in the bottle is typically purple or brown.
Do you have to empty the boric acid from a urine sample bottle before you use it?
No, you do not need to empty the boric acid from a urine sample bottle before use. The boric acid acts as a preservative to keep the sample stable until it can be tested.
What are the indications for Romazicon?
aptt is 100 seconds
What is the normal aptt ratio?
0.84-1.22
When APTT result low?
A low APTT result may suggest a bleeding disorder caused by factors like deficiencies in clotting factors (such as hemophilia) or the presence of inhibitors to clotting factors. Further evaluation is necessary to determine the specific cause of the prolonged APTT.
What is a collecting bottle and how is it used?
A collecting bottle is a container used for collecting liquid or gas samples during an experiment or testing process. The bottle is typically connected to a sampling device, such as a pipette or pump, which allows the precise transfer of the sample into the bottle without contamination. Once the sample is collected, the bottle can be sealed to preserve the sample for further analysis.
What is the purpose of shaking the sample before transferring the sample into a sterile McCartney bottle?
Shaking the sample before transferring it into a sterile McCartney bottle helps to ensure homogeneity of the sample, allowing for a representative portion to be transferred. This helps to minimize sampling errors and ensures accurate analysis of the sample. Additionally, shaking the sample helps to resuspend any settled particles or components, leading to a more uniform distribution in the McCartney bottle.
