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A serum folate level of less than 7 nmol/L (3 μg/L) is indicative of folate deficiency; Red blood cell folate testing is not routinely performed, since serum folate is sufficient in most cases, however, if there is a strong suspicion of folate deficiency despite a normal serum folate level, a red cell folate test may be performed.
Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...
Folate deficiency is diagnosed by analyzing a complete blood count (CBC) and plasma vitamin B 12 and folate levels. A serum folate of 3 μg/L or lower indicates deficiency. [98] Serum folate level reflects folate status, but erythrocyte folate level better reflects tissue stores after intake.
It is known that thymol, a compound produced by thyme, naturally occurring in thyme honey, is a treatment for Varroa, though it may cause bee mortality at high concentrations. [2] Provisioning active colonies with crops of thyme may provide the colony with a non-interventional chemical defense against Varroa .
Bee stings differ from insect bites, with the venom of stinging insects having considerable chemical variation. The reaction of a person to a bee sting may vary according to the bee species. While bee stinger venom is slightly acidic and causes only mild pain in most people, [1] allergic reactions may occur in people with allergies to venom ...
Allergy blood tests are very safe since the person is not exposed to any allergens during the testing procedure. After the onset of anaphylaxis or a severe allergic reaction, guidelines recommend emergency departments obtain a time-sensitive blood test to determine blood tryptase levels and assess for mast cell activation. [117]
Apis laboriosa or Himalayan giant honey bee, is the world's largest honey bee; single adults can measure up to 3.0 cm (1.2 in) in length. Before 1980, Apis laboriosa was considered to be a subspecies of the widespread Apis dorsata , the giant honey bee, but in 1980 and for almost 20 years thereafter it was elevated to the rank of a separate ...
IgE also plays a pivotal role in responses to allergens, such as anaphylactic reactions to drugs, bee stings, and antigen preparations used in desensitization immunotherapy. IgE is typically the least abundant isotype: blood serum IgE levels in a non- atopic individual are less than 0.0001% of the total Ig concentration, [ 10 ] compared to 75% ...