Growth charts 2 to 18 years. Maternal and Child Health nurses use percentile charts from the Centre for Disease Control for children between 2 and 18 years of age, which measure height, weight and Body Mass Index (BMI).MI is calculated using height and height measurements, then used to compare a childâs weight relative to height with other children of the same age and gender, using BMI percentile charts. The following equation can be used to determine BMI: BMI = Weight (kg) / height (m) Height (m).
Chromogranin A (CGA) is a protein found in and released from neuroendocrine cells. The Chromogranin A test is used as a tumor marker.It may be ordered in combination with or in place of serotonin to help as an aid to diagnose carcinoid syndrome. Typical carcinoid symptoms include: 1  Flushing. 2  Diarrhea. 3  Abdominal pain. 4  Wheezing. 5  Valvular heart disease.hromogranin A (CGA) is a protein found in and released from neuroendocrine cells. The Chromogranin A test is used as a tumor marker.
Tumor markers are substances that are produced by cancer or by other cells of the body in response to cancer or certain benign (noncancerous) conditions. Most tumor markers are made by normal cells as well as by cancer cells; however, they are produced at much higher levels in cancerous conditions. These substances can be found in the blood, urine, stool, tumor tissue, or other tissues or bodily fluids of some patients with cancer. Most tumor markers are proteins. However, more recently, patterns of gene expression and changes to DNA have also begun to be used as tumor markers.