CMP blood test
A CMP (Comprehensive Metabolic Panel) blood test is a set of specific tests that aid in providing a physician with vital information on the status of a patient's liver, kidneys, blood sugar, blood proteins and electrolyte balance. Often a CMP blood test is part of a yearly examination. The CMP blood test encompasses:
MCV blood test
MCV (Mean Corpuscular Volume) blood test measures the size of RBC. Any change in the size of RBCs indicates certain disorders. This test is often conducted along with RDW blood test. With MCV blood test, RBCs can be categorized into normal, small or large sizes. Larger cells are usually indicative of macrocytic anemia. On the other hand, those with small cells may suffer microcytic anemia. Larger RBCs may indicate liver disease, hypothyroidism, folic acid or vitamin B12 deficiency or marrow aplasia. Decreased size of red blood cells is usually noticed in persons suffering from anemia, thalassemia, lead poisoning or chronic renal failure.
MCV Blood test range
MCV blood test is done using electrical impedance or light deflection. The MCV values are considered as significant and reliable in the clinical correlation of a disease. The standard reference value for MCV is 80-100 femolitres. The reference range varies from person to person depending on the age group. In children the reference range for MCV is given in three categories:
For Newborns (95 to 121 fl)
For Infants and Toddlers (76- 86 fl)
For Teenagers (boys: 78- 98 fl and girls 78-102fl)
For Adults 98fl
The MCV in association with underlying anemic conditions is determined by the following mathematical formulae:
MCV = 10 X (packed cell volume / RBC count)
Mentzer index
Mentzer index is mathematically expressed as MCV / RBC count. The Mentzer index value determines conditions such as thalassemia when the ratio is less than 13 and it indicates iron deficiency anemia when the ratio is greater than 13.
BMP blood test
BMP blood test or Basic Metabolic Panel blood test comprises a set of tests that throw light on the functioning of a person's kidneys, blood sugar, calcium, electrolyte and acid/base levels. BMP blood test comprises testing for:
Glucose: Metabolic disorders of carbohydrates, incidences of Pancreatitis, renal impairment in association with diabetes mellitus of adult and juvenile origins.
Calcium: Hyperthyroidism, hypothyroidism, tetanus, bone disorders, chronic renal failure.
Sodium: Central nervous system disorders, dehydration, gastrointestinal fluid loss, skin complications, hyperaldosteronism, polydipsia, burns.
Potassium: Hyperparathyroidism, conditions associated with glomerulus and renal tubules, diabetic ketoacidosis and metabolic alkalosis.
CO2 (carbon dioxide, bicarbonate): Renal metabolic disorders, primary respiratory and metabolic alkalosis.
Chloride: Diarrhea, vomiting, dehydration, burns, renal diseases.
BMP blood test aids in diagnosis of kidney failure, diabetic coma, hypertension, changes in heart rhythms and respiratory illness. Basic metabolic panel elucidates the blood biochemistry values in association with the underlying medical conditions. The patient is advised to fast 12 hours before the test. In some conditions a random analysis is also followed. Other tests that are used by physicians to check for renal failure are BUN blood test and test for creatinine. If there is elevated blood calcium level, it can be confirmed with an ionized calcium test. Electrolyte imbalance can occur due to many an illness.
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