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Phlebotomy Tests
Clinical Correlation
Test | Clinical Correlation |
---|---|
Blood group and type (ABO and Rh) | ABO group and Rh factor |
pH | Acid base balance |
Sodium | Acid-base balance |
Adrenocorticotropic hormone (ACTH) | Adrenal and pituitary gland function |
Cortisol | Adrenal cortex function |
Aldosterone | Adrenal function |
Carbamazepine (Tegretol) | Altered protein-binding capacity |
Aluminum (Al) | Aluminum toxicity |
Glucose-6-phosphate dehydrogenase(G6PD) | Anemia |
Hematocrit (Hct) | Anemia |
Hemoglobin (Hgb) | Anemia |
Hemoglobin/hematocrit (H&H); Hgb/Hct | Anemia |
Red blood cell (RBC) count | Anemia |
Iron | Anemia |
Iron-binding capacity | Anemia |
Vitamin B12 | Anemia |
Folate | Anemia |
Direct antihuman globulin test (DAT) or direct Coombs | Anemia or hemolytic disease of the newborn |
Complete blood count (CBC) | Anemia, infection, leukemia, or bleeding disorders |
Febrile antibody panel | Antibody screen for Salmonella, Rickettsia, Brucella, Francisella tularensis |
Lithium (Li) | Antidepressant drug monitoring |
Cold agglutinins | Atypical pneumonia |
Copper | Biliary cirrhosis |
Platelet (Plt) | Bleeding disorders |
Crossmatch | Blood compatibility |
Antibody identification (ID)/screen | Blood transfusion |
Type and screen | Blood transfusion |
Alkaline phosphatase (ALP) | Bone disorders |
Calcium | Bone disorders, nephritis |
Reticulocyte count (Retic) | Bone marrow function |
Antibiotic assays (amikacin, gentamicin, theophylline, tobramycin, vancomycin) | Broad-spectrum antibiotics |
Vitamin D | Calcium absorption |
Carbon monoxide (CO) | Carbon monoxide toxicity |
Fibrinogen | Coagulation disorders |
Antithrombin III | Coagulation disorders |
Disseminated intravascular coagulation (DIC) panel | Coagulation/fibrinolytic systems |
Osmolality | Comatose patients |
Brain natriuretic peptide (BNP) | Congestive heart failure |
Cholesterol | Coronary artery disease |
Lipoproteins (high-density lipoprotein [HDL], low-density lipoprotein [LDL], very-low density lipoprotein [VLDL]) | Coronary heart disease |
Triglycerides | Coronary heart disease |
Apo-A, Apo-B lipoprotein | Coronary heart disease |
International normalized ratio (INR) | Coumadin therapy |
Prothrombin time (PT) | Coumadin therapy and coagulation disorders |
Factor assays | Detect specific clotting factor function |
Drug screen | Detection and identification of drugs |
Epstein-Barr virus panel | Detection of Epstein-Barr virus |
Hemoglobin A1c | Diabetes mellitus |
Fasting blood sugar (FBS) | Diabetes mellitus or hypoglycemia |
Fibrin degradation product (FDP) | DIC |
D-Dimer (D-DI) | Disseminated intravascular coagulation (DIC) and thrombotic disorders |
Phosphorus | Endocrine and bone disorders |
Comprehensive metabolic panel (CMP) | Evaluation of overall health |
Chemistry panels (cardiac, hepatic, metabolic, and renal) | Evaluation of various organ systems |
Carotene, beta | Fat malabsorption |
Electrolytes (Lytes) Na, K, Cl, CO2 | Fluid and acid-base balance |
Ionized calcium (iCA2+) | Follow-up test for abnormal total calcium results |
Gastrin | Gastric malignancy or pernicious anemia |
Insulin | Glucose metabolism and pancreatic function |
Digoxin | Heart stimulant |
Heparin anti-Xa assay | Heparin therapy |
Partial thromboplastin time (PTT); activated partial thromboplastin time (APTT) | Heparin therapy and coagulation disorders |
Ammonia (NH3) | Hepatic encephalopathy |
Hepatitis B surface antigen | Hepatitis B infection |
Hemoglobin electrophoresis | Hgb abnormalities |
Anti-HIV | HIV |
Western blot | HIV |
Viral load | HIV monitoring |
Parathyroid hormone (PTH) | Hypercalcemia; Parathyroid function |
C-peptide | Hypoglycemia |
Glucose | Hypoglycemia or diabetes mellitus |
Vitamin B6 | Hypophosphatasia |
T-cell count | Immune function/HIV monitoring |
Immunoglobulin levels | Immune system function |
Complement levels | Immune system function/autoimmune disorders |
Rubella titer | Immunity to German measles |
Anti-hepatitis B surface antigen | Immunity to hepatitis B |
Hepatitis B surface antibody | Immunity to hepatitis B |
Quantitative protein assay C3, C4, Immunoglobulins (IgG, IgA, IgM), haptoglobin | Immunoglobulin disorders, hemolytic anemia |
Plasminogen | Impaired fibrinolysis |
White blood cell (WBC) count | Infection or leukemia |
Differential (Diff) | Infection, anemia, leukemia, blood dyscrasias |
Mononucleosis screen (Mono test) | Infectious mononucleosis |
Erythrocyte sedimentation rate (ESR) | Inflammatory disorders |
C-reactive protein | Inflammatory processes |
Ethanol/alcohol (ETOH) | Intoxication |
Ferritin | Iron deficiency |
Total protein (TP) | Kidney and liver disorders |
Blood urea nitrogen (BUN) | Kidney disorders |
Creatinine (Creat) | Kidney disorders |
Uric acid | Kidney disorders, gout |
Bilirubin, total and direct (Bili) | Liver and hemolytic disorders |
Gamma-glutamyl transpeptidase (GGT) | Liver disease |
Alanine aminotransferase (ALT) | Liver disorders |
Aspartate aminotransferase (AST) | Liver disorders, cardiac muscle damage |
Protein | Liver, kidney, bone marrow, metabolic, or nutritional disorder |
Carcinoembryonic antigen (CEA) | Malignancy |
Albumin | Malnutrition or liver disorders |
Calcitonin | Medullary thyroid carcinoma |
Basic metabolic panel (BMP) | Metabolism |
Homocysteine (Hcy) | Methionine metabolism disorder |
MI panel (CK isoenzyme [CK-MB], myoglobin [Myo], troponin [Tn]) | MI |
Lactate dehydrogenase (LD) | MI |
Creatine kinase isoenzymes (CK-MB, CK-MM, CK-BB) | MI, muscle damage, brain damage |
Cyclosporine | Monitoring of cyclosporine levels |
Therapeutic drugs (digoxin, theophylline [theo], phenobarbital, phenytoin [Pheny], carbamazepine [Carb], valproic acid [val ac]) | Monitoring of medications for seizures, bipolar disorders, epilepsy, asthma |
Chromium (Cr) | Monitoring of prosthetic implant |
Protein electrophoresis | Multiple myeloma/abnormal proteins |
Myoglobin | Muscle damage |
Lactate (lactic acid) (Lact) | Muscle disorders |
Potassium | Muscle function, heart contraction/cardiac output |
Magnesium | Musculoskeletal disorders |
Troponin I and T | Myocardial function |
Creatine kinase (CK) | Myocardial infarction (MI), muscle damage |
Lead (Pb) | Neurological function |
Cancer antigen (CA-125) | Ovarian cancer |
Amylase | Pancreatitis |
Lipase | Pancreatitis |
Hepatitis B core antibody | Past or present hepatitis B infection |
Antidiuretic hormone (ADH) | Pituitary function |
Platelet (Plt) aggregation | Plt function |
Porphyrins | Porphyria cutanea tarda |
Beta human chorionic gonadotropin (beta hCG) | Pregnancy, testicular cancer |
Human chorionic gonadotropin (hCG) | Pregnancy, testicular tumor |
Acid phosphatase | Prostate cancer |
Prostate-specific antigen (PSA) | Prostatic cancer |
Prostatic acid phosphatase (PAP) | Prostatic cancer |
Antistreptolysin O (ASO) titer | Rheumatic fever |
Rheumatoid factor (RF) | Rheumatoid arthritis |
Salicylate (aspirin) | Salicylate toxicity |
Angiotensin-converting enzyme (ACE) | Sarcoidosis |
Blood culture | Septicemia |
Sickle cell screening | Sickle cell anemia |
Fluorescent treponemal antibody-absorption (FTA-ABS) | Syphilis |
Rapid plasmin reagin (RPR) | Syphilis |
Venereal Disease ResearchLaboratory (VDRL) | Syphilis |
Antinuclear antibody (ANA) | Systemic lupus erythematosus/autoimmune disorders |
Fluorescent antinuclearantibody (FANA) | Systemic lupus erythematosus/autoimmune disorders |
Alpha-fetoprotein (AFP) | Testicular and ovarian cancers |
Testosterone | Testicular function |
Thyroid-stimulating hormone/Free T4 (TSH/T4) | Thyroid conditions |
Valproic acid (Depakote) | Valproic toxicity |
Cryoglobulin | Vasculitis, glomerulonephritis, and macroglobulinemia |
Anti-hepatitis A virus | Viral hepatitis A infection |
Anti-hepatitis C virus | Viral hepatitis C infection |
Vitamin A | Vitamin A deficiency and toxicity |
Zinc | Zinc deficiency |