165 results found
Medical tests
… Wrap an elastic band around your upper arm to stop the flow of blood. This makes the veins below the band larger so it is easier to put a needle into the … enough folic acid , vitamin B6, or vitamin B12 in your diet. Other conditions or diseases, such as homocystinuria , …
Medical tests
… the amount of sugar (glucose) in the blood. Insulin allows glucose to enter body cells where it is used for … pancreas does not make any insulin (type 1 diabetes) has a low level of insulin and C-peptide. A person with type 2 … C-peptide. A C-peptide test can also help find the cause of low blood sugar ( hypoglycemia ). Possible causes of low …
Medical tests
… of testosterone in the body. When the testosterone level is low, the pituitary gland releases a hormone called … Before puberty , the testosterone level in boys is normally low. Testosterone increases during puberty. This causes boys … the day. They are usually highest in the morning and lowest in the evening. Why It Is Done For high or low levels …
Medical tests
… in the early morning (between 6 a.m. and 8 a.m.) and lowest in the evening (between 6 p.m. and 11 p.m.). ACTH … glands or pituitary gland. A high level of ACTH and a low level of cortisol (or low ACTH and high cortisol levels) could be caused by a …
Medical tests
… called an autoimmune disease . If your immune system makes low levels of antibodies, you may have a greater chance of … You can be born with an immune system that makes low levels of antibodies, or your system may make low levels of antibodies in response to certain diseases, …
Medical tests
… the thyroid gland . If the blood calcium level is too low, the parathyroid glands release more PTH. This causes … process is reversed. PTH levels that are too high or too low can cause problems with the kidneys and bones and cause … gland growth (hyperplasia) or a parathyroid tumour. A low level of calcium in the blood. A low blood calcium level …
Medical tests
… kidney disease High beta globulin: Very high cholesterol; low iron (iron-deficiency anemia) High gamma globulin: … infection; liver disease; some forms of cancer Low values Low values may be caused by many conditions. Some of the …
Medical tests
… at the site. Some people's blood glucose levels drop very low toward the end of the test. But some people feel like their sugar levels are low, when their levels actually are not low. Symptoms of low blood glucose include weakness, hunger, …
Medical tests
… forms of thalassemia , may cause hemoglobin A levels to be low and hemoglobin F levels to be high. Hemoglobin F (fetal … in the normal range may still be normal for you. High and low values Higher-than-normal amounts of both hemoglobin A2 … F may mean a mild form of thalassemia is present. A very low level of hemoglobin A and a high level of hemoglobin F …
Medical tests
… Wrap an elastic band around your upper arm to stop the flow of blood. This makes the veins below the band larger so it is easier to put a needle into the … a vein. You may get a small bruise at the site. You can lower the chance of bruising by keeping pressure on the site …
