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What reason could there be for a negative result when the antigen is actually present?
A negative result despite the presence of the antigen can occur due to several factors, including improper sample collection or handling, insufficient sensitivity of the test used, or the timing of the test in relation to the infection stage. Additionally, the presence of interfering substances in the sample can hinder the test's ability to detect the antigen. Laboratory errors, such as incorrect test procedures or equipment malfunctions, might also contribute to false-negative results.
What else can I help you with?
What questions did Rousseau and Kant raise about reason?
That the utilization of reason might actually be a negative thing
What is the main reason to do the immunodiffusion testing?
the main reason to do immunodiffusion test is to quantify antigen or antibody
Why is negative four to the fourth power negative?
Because A Negative x A pOsItIVE = nEgaTiVE * * * * * (-4)4 = 256. It is positive, not negative. The most likely reason for getting a negative result is that no brackets were used and so what was calculated was actually -44
What is the difference between o positive and o negative blood?
The terms "positive" or "negative" refer to either the presence or absence of the RhD (Rhesus D) antigen. Individuals either have, or do not have, the Rhesus factor (or Rhesus D antigen) on the surface of their red blood cells. This is usually indicated by 'RhD positive' (does have the RhD antigen) or 'RhD negative' (does not have the antigen).
What is c antigen?
"C antigen is an antigen in the Rhesus blood grouping system. This blood group system is associated with over 40 antigens which may or may not be present in a someone's blood, determining her or his place in this system. The most famous Rhesus antigen is the D antigen, sometimes called the Rhesus factor, which can cause complications in pregnancy. Blood analysis for C antigen can be performed in a lab which has the serotyping tools necessary to identify the presence of this antigen in the blood. As with some other antigens associated with blood types, the C antigen can create a blood incompatibility which may cause problems during pregnancy or with blood transfusions. If someone does not have this antigen and she or he is exposed to the blood of someone who does, C antibodieswill develop. With the next exposure, a coagulation reaction will occur in the blood. For this reason, it is important to avoid transfusing C positive blood into people who do not have the antigen.Whereas most blood types are determined by red cell antigens that differ by one or two amino acids, the Rh blood group contains the D antigen which differs from th"e C/c and E/e antigens by 35 amino acids. This large difference in amino acids is the reason why the Rh antigens are potent at stimulating an immune response
Sperm is not antigen why?
Sperm are not recognized as foreign invaders by the immune system because they carry self-proteins that are recognized as part of the body. This prevents an immune response from targeting and attacking sperm cells as it would with foreign antigens.
What are coordinates conjunction and their function?
For- used to present a reason And- used to join or add words Nor- used to present a non-contrasting negative idea But- used to show conflicting ideas Or- used to introduce an alternative Yet- used to present a contrast So- used to show result
Tell me the reason why you wanted to leave your present employer?
When you are asked a question as to why you wanted to leave your present employer, it is important not to speak badly about your employer. Discuss reasons such as wanting to be challenged, or looking for a career change. Stay positive and avoid negative talk.
What is the reason for negative relationship between bond price and yield?
The Present Value (value now) of a fixed cashflow, paid in the future is calculated using the following formula; Present Value = Cashflow/(1+ yield) As the yield rises, the PV falls.
Could nervousness cause a false negative pregnancy test?
No, the test will pick up the hCG it is looking for, if it is present, even if you are nervous ...most people are when they do a test for one reason or another.
Why were negative numbers written in black?
Because the colour of a "negative wire casing" is black, hence the reason why negative numbers were written in this colour :)
Can 0 positive mother and father have a baby who is A plus?
No. they can have only O-group babies. Reason seems to be obvious as neither of them have any A antigen either in homzygouas or hetrozygous forms
