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Common Chemistry Tests

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Question
Answer
Alanine Amino Transferase (ALT)   LIVER -->marked elevations point to liver disease; used for monitoring liver treatment  
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Alpha-Fetoprotein (AFP)   LIVER-->increased values in hepatic carcinoma; elevation of AFP in prenatal screening indicates neural tube disorder  
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Alkaline Phosphatase (ALP)   LIVER or BONE-->elevated ALP levels because of biliary obstruction and bone disease  
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Ammonia   LIVER-->increased blood levels indicate cirrhosis and hepatitis  
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Amylase   PANCREAS & LIVER-->increased levels of this enzyme diagnostic of acute pancreatitis; decreased values associated with liver disease' cholecystitis, and advanced cystic fibrosis  
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Aspartate Amino-Transferase (AST)   LIVER or HEART-->increase in enzyme indicative of liver dysfunction; significant increase following myocardial infarction  
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Bilirubin   LIVER-->increased levels in the bloodstream point to red cell destruction and liver dysfunction  
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Blood Gases (ABG)   KIDNEYS, LUNGS-->measures pH, partial pressure of carbon dioxide (PCO2), partial pressure of oxygen (PO2) to evaluate the acid-base balance  
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Blood Urea Nitrogen (BUN)   KIDNEY-->elevated values because of impaired renal function from toxins, inflammation, or obstruction  
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Carcinoembryonic Antigen (CEA)   NONSPECIFIC-->increased in the cases of malignancy, effective in the early detection of colorectal cancer  
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Calcium   BONE-->increased levels associated with diseases of the bone; used in monitoring effects of renal failure  
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Cholesterol (total)   HEART-->indicative of high risk for cardiovascular disease  
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Cortisol   ADRENALS-->elevated levels signify adrenal hyperfunction (Cushings syndrome); decreased levels indicate adrenal hypofunction (Addison's disease)  
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Creatine Kinase (CK)   HEART or MUSCLE-->elevated values point to muscle damage (i.e., myocardial infarction, muscular dystrophy, or strenuous exercise)  
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Creatinine   KIDNEY--> increased levels indicate renal impairment; decreased levels associated with muscular dystrophy  
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Drug Analysis   values monitored to maintain therapeutic range and avoid toxic levels for drugs such as barbiturates, digoxin, gentamicin, lithium, primidone, phenytoin, salicylates, theophylline, or tobramycin  
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Electrolytes (sodium, potassium, chloride, CO2)   KIDNEY, ADRENALS, HEART-->sodium values, increased in disorders of the kidney and adrenals; decreased values of potassium seen in irregular heartbeat; chloride values are increased in kidney and adrenal disorders and decreased in diarrhea  
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Glucose   PANCREAS-->elevated levels signify diabetic problems; decreased values support liver disease and malnutrition  
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Glycosylated Hemoglobin   PANCREAS-->glycohemoglobin level shows what type of diabetic control has occurred over the past several months  
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Gamma-Glutamyl Transferase (GGT)   LIVER--> elevated values assist in the diagnosis of liver problems, specific for hepatobiliary problems  
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Lactate Dehydrogenase (LD)   HEART, LUNGS, LIVER--> elevated levels confirm acute myocardial infarction; chronic lung, kidney, and liver dysfunction  
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Lipase   PANCREAS--> increased levels in acute pancreatitis, pancreatic carcinoma, and obstruction  
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Prostate Specific Antigen (PSA)   PROSTATE-->performed to screen patients for the presence of prostate cancer, monitor progression of disease and the response of the patient to treatment  
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Total Protein   LIVER or KIDNEY-->low levels point to liver and kidney disorders; elevated levels may occur with multiple myeloma and dehydration  
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Triglycerides   HEART-->increased values indicate lipid metabolism disorders and serve as an index for evaluating atherosclerosis possibilities  
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Uric Acid   KIDNEY--> elevated levels found in renal disorders and gout  
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Vitamin B12 & Folate   LIVER-->decreased levels indicate anemias and disease of the small intestine  
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