Practical and concise, this spiral bound, pocket-sized manual is a quick, go-to reference for up-to-date clinical material on today's diagnostic testing and laboratory tests. Three convenient sections provide quick access to key information on clinical laboratory testing, diagnostic imaging, and diagnostic algorithms. Experienced author Dr. Fred Ferri uses a unique, easy-to-follow format to simplify complex information and help you choose the best test to supplement your clinical diagnostic skills. Includes both lab and imaging tests for concise, convenient access to all diagnostic test options for more than 200 common diseases and disorders. Includes essential information on indications, advantages, disadvantages, approximate costs, normal ranges, typical abnormalities, likeliest causes, and more. Features a new appendix on when to use contrast agents in ordering CT and MRI scans. Discusses new modalities including transient elastography (Fibroscan), CT enterography and CT enteroclysis. Provides new comparison tables to easily evaluate the best test; new algorithms for evaluation of immunodeficiency and hematochezia; and new tables and illustrations throughout to improve your test selection. Expert ConsultT eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, and references from the book on a variety of devices.

Table of Contents:
Ferri's Best Test, 4/E Section I Diagnostic Imaging A. Abdominal and Gastrointestinal (GI) Imaging     1. Abdominal Film, Plain (Kidney, Ureter, and Bladder [KUB])     2. Barium Enema (BE)     3. Barium Swallow (Esophagram)     4. Upper GI (UGI) Series     5. Computed Tomographic Colonoscopy (CTC, Virtual Colonoscopy)     6. CT Scan of Abdomen And Pelvis     7. CT Enterography     8. CT Enteroclysis     9. Magnetic Resonance Enterography (MRE)     10. Cholescintigraphy (Hepatobiliary Iminodiacetic Acid [HIDA] Scan, Diisopropyl Iminodiacetic Acid [Disida] Scan     11. Endoscopic Retrograde Cholangiopancreatography (ERCP)     12. Percutaneous Biliary Procedures     13. Magnetic Resonance Cholangiopancreatography (MRCP)     14. Meckel Scan (Tc-99m Pertechnetate Scintigraphy)     15. MRI Scan of Abdomen     16. Small-Bowel Series     17. Tc-99m Sulfur Colloid (Tc99m SC) Scintigraphy for GI Bleeding     18. Tc-99m-Labeled Red Blood Cell (RBC) Scintigraphy for GI Bleeding     19. Ultrasound Of Abdomen     20. Ultrasound of Appendix     21. Ultrasound of Gallbladder and Bile Ducts     22. Ultrasound of Liver     23. Ultrasound of Pancreas     24. Endoscopic Ultrasound (Eus)     25. Video Capsule Endoscopy (Vce)     26. Transient Elastography (Fibroscan) B. Breast Imaging     1. Mammogram     2. Breast Ultrasound     3. MRI Of The Breast C. Cardiac Imaging     1. Stress Echocardiography     2. Cardiovascular Radionuclide Imaging (Thallium, Sestamibi, Dipyridamole [Persantine] Scan), Positron Emission Tomography (Pet), Single Photon Emission Computed Tomography (Spect)     3. Cardiac MRI (CMR) Scan     4. Multidetector CT Scan     5. Transesophageal Echocardiogram (TEE)     6. Transthoracic Echocardiography (TTE)     7. Intravascular Ultrasound (IVUS) D. Chest Imaging     1. Chest Radiograph     2. CT Scan of Chest     3. MRI Scan of Chest E. Endocrine Imaging     1. Adrenal Medullary Scintigraphy (Metaiodobenzylguanidine [MIBG] Scan)     2. Parathyroid (PTH) Scan     3. Thyroid Scan (Radioiodine Uptake Study)     4. Thyroid Ultrasound F. Genitourinary Imaging     1. Obstetric Ultrasound     2. Pelvic Ultrasound     3. Prostate Ultrasound     4. Renal Ultrasound     5. Scrotal Ultrasound     6. Transvaginal (Endovaginal) Ultrasound     7. Urinary Bladder Ultrasound     8. Hysterosalpingography (HSG)     9. Intravenous Pyelography (IVP) And Intravenous Retrograde Pyelography G. Musculoskeletal and Spinal Cord Imaging     1. Plain X-Ray Films of Skeletal System     2. Bone Densitometry (Dual-Energy X-Ray Absorptiometry [DEXA] Scan)     3. MRI Scan of Spine     4. MRI Scan of Shoulder     5. MRI Scan of Hip And Extremities     6. MRI Scan of Pelvis     7. MRI Scan of Knee     8. CT Scan of Spinal Cord     9. Arthrography     10. CT Myelography     11. Nuclear Imaging (Bone Scan, Gallium Scan, White Blood Cell [WBC] Scan) H. Neuroimaging Of Brain     1. CT Scan of Brain     2. MRI Scan of Brain I. Positron Emission Tomography (PET) J. Single-Photon Emission Computed Tomography (SPECT) K. Vascular Imaging     1. Angiography     2. Aorta Ultrasound     3. Arterial Ultrasound     4. Captopril Renal Scan (CRS)     5. Carotid Ultrasonography     6. Computed Tomographic Angiography (CTA)     7. Magnetic Resonance Angiography (MRA)     8. Magnetic Resonance Direct Thrombus Imaging (MRDTI)     9. Pulmonary Angiography     10. Transcranial Doppler     11. Venography     12. Compression Ultrasonography and Venous Doppler Ultrasound     13. Ventilation/Perfusion (V/Q) Lung Scan L. Oncology     1. Whole-Body Integrated (Dual-Modality) PET-CT     2. Whole-Body MRI Section II Laboratory Values And Interpretation Of Results ACE Level Acetone (Serum or Plasma) Acetylcholine Receptor (AChR) Antibody Acid Phosphatase (Serum) Acid Serum Test Activated Clotting Time (ACT) Activated Partial Thromboplastin Time (aPTT) Adrenocorticotropic Hormone (ACTH) Alanine Aminopeptidase Alanine Aminotransferase (ALT, Formerly Serum Glutamic-Pyruvic Transaminase [SGPT]) Albumin (Serum) Alcohol Dehydrogenase Aldolase (Serum) Aldosterone (Plasma) Alkaline Phosphatase (Serum) Alpha-1-Antitrypsin (Serum) Alpha-1-Fetoprotein (Serum) ALT Aluminum (Serum) AMA Amebiasis Serological Test Aminolevulinic Acid (d-ALA) (24-hour Urine Collection) Ammonia (Serum) Amylase (Serum) Amylase, Urine Amyloid A Protein (Serum) ANA ANCA Androstenedione (Serum) Angiotensin II Angiotensin-Converting Enzyme (ACE) Level ANH Anion Gap Anticardiolipin Antibody (ACA) Anticoagulant Antidiuretic Hormone Anti-DNA Anti-ds DNA Antiglobulin Test, Direct (Direct Antiglobulin Test , DAT, Coombs Direct ) Antiglomerular Basement Antibody Anti-HCV Antihistone Antimitochondrial Antibody (AMA) Antineutrophil Cytoplasmic Antibody (ANCA) Antinuclear Antibody (ANA) Antiphospholipid Antibody Anti-RNP Antibody Anti-Scl-70 Anti-Smith (anti-Sm) Antibody Anti-Smooth Muscle Antibody Antistreptolysin O Titer (streptozyme, ASLO titer) Antithrombin III Apolipoprotein A-1 (Apo A-1) Apolipoprotein B (Apo B) Arterial Blood Gases Arthrocentesis Fluid ASLO titer Aspartate Aminotransferase (AST, Serum Glutamic Oxaloacetic Transaminase [SGOT]) Atrial Natriuretic Hormone (ANH) Basophil Count Bicarbonate Bile Acid Breath Test Bile, Urine Bilirubin, Direct (Conjugated Bilirubin) Bilirubin, Indirect (Unconjugated Bilirubin) Bilirubin, Total Bilirubin, Urine Bladder Tumor-Associated Antigen Bleeding Time (Modified IVY Method) Blood Volume, Total Bordetella Pertussis Serology BRCA-1, BRCA-2 Breath Hydrogen Test B-Type Natriuretic Peptide (BNP) BUN C3 C4 CA 15-3 CA 27-29 CA 72-4 CA 125 Calcitonin (Serum) Calcium (Serum) Calcium, Urine Cancer Antigen 15-3 (CA 15-3) Cancer Antigen 27-29 (CA 27-29) Cancer Antigen 72-4 (CA 72-4) Cancer Antigen 125 (CA-125) Captopril Stimulation Test Carbamazepine (Tegretol) Carbohydrate Antigen 19-9 Carbon Dioxide, Partial Pressure Carbon Monoxide Carboxyhemoglobin (COHb) Cardiac Markers (Serum) Cardiac Troponins Carcinoembryonic Antigen (CEA) Cardio-CRP Carotene (Serum) Catecholamines, Urine CBC CCK CCK-PZ CD4 T-lymphocyte Count (CD4 T-cells) CD40 Ligand CEA Cerebrospinal Fluid (CSF) Ceruloplasmin (Serum) Chlamydia Group Antibody Serologic Test Chlamydia Trachomatis Polymerase Chain Reaction (PCR) Chloride (Serum) Chloride (Sweat) Chloride, Urine Cholecystokinin-Pancreozymin (CCK, CCK-PZ) Cholesterol, Low-Density Lipoprotein Cholesterol, High-Density Lipoprotein Cholesterol, Total Chorionic Gonadotropin (hCG), Human (serum) Chymotrypsin Circulating Anticoagulant (Antiphospholipid Antibody, Lupus Anticoagulant) CK Clonidine Suppression Test Clostridium Difficile Toxin Assay (Stool) COXXX Coagulation Factors Cold Agglutinins Titer Complement (C3, C4) Complete Blood Cell (CBC) Count Conjugated Bilirubin Coombs, Indirect Copper (Serum) Copper, Urine Corticotropin-Releasing Hormone (CRH) Stimulation Test Cortisol (Plasma) C-Peptide CPK C-Reactive Protein (CRP) Creatinine Clearance Creatinine Kinase (CK), Creatine Phosphokinase (CPK) Creatinine Kinase Isoenzymes CK-MB CK-MM CK-BB Creatinine (Serum) Creatinine, Urine Cryoglobulins (Serum) Cryptosporidium Antigen By Enzyme Immunoassay (EIA) (Stool) CSF Cystatin C Cystic Fibrosis Polymerase Chain Reaction (PCR) Cytomegalovirus By Polymerase Chain Reaction (PCR) Direct Antiglobulin Test D-Dimer Dehydroepiandrosterone Sulfate Deoxycorticosterone (11-Deoxycorticosterone, DOC), Serum Dexamethasone Suppression Test, Overnight Dihydrotestosterone, Serum, Urine Direct Antiglobulin Test Disaccharide Absorption Tests DOC Donath-Landsteiner (D-L) Test For Paroxysmal Cold Hemoglobinuria Digoxin (Lanoxin) Dilantin Dopamine d-Xylose Absorption Test Electrolytes, Urine Electrophoresis, Hemoglobin Electrophoresis, Protein ENA complex Endomysial Antibodies Eosinophil Count Epinephrine, Plasma Epstein-Barr Virus (EBV) Serology Erythrocyte Sedimentation Rate (ESR) (Westergren) Erythropoietin (EP) Estradiol (Serum) Estrogens, Total Ethanol (Blood) Extractable Nuclear Antigen (ENA Complex, Anti-RNP Antibody, Anti-SM, Anti-Smith) Factor V Leiden FDP Fecal FAT, Qualitative Fecal FAT, Quantitative (72-Hour Collection) Fecal Globin Immunochemical Test Ferritin (Serum) Fibrin Degradation Product (FDP) Fibrinogen Fluorescent Treponemal Antibody Folate (Folic Acid) Follicle-Stimulating Hormone (FSH) Fractional excretion of sodium (FENA)  Free T4 Free Thyroxine Index FSH FTA-ABS (Serum) Furosemide Stimulation Test Gamma-Glutamyl Transferase (GGT) Gastrin (Serum) Gastrin Stimulation Test Gliadin Antibodies, Immunoglobulin (Ig) A and IgG Glomerular Basement Membrane Antibody Glomerular Filtration Rate (GFR) Glucagon Glucose, Fasting Glucose, Postprandial Glucose Tolerance Test Glucose-6-Phosphate Dehydrogenase (G6PD) Screen (blood) ?-Glutamyl Transferase (GGT) Glycated (Glycosylated) Hemoglobin (HbAIc) Glycohemoglobin Growth Hormone Growth Hormone-Releasing Hormone (GHRH) Growth Hormone Suppression Test (after glucose) HAM Test (Acid Serum Test) Haptoglobin (Serum) HBA, C HDL Helicobacter Pylori (Serology, Stool Antigen) Hematocrit Hemoglobin Hemoglobin (Hb) Electrophoresis Hemoglobin, Glycated Hemoglobin, Glycosylated Hemoglobin H Hemoglobin, Urine Hemosiderin, Urine Heparin-Induced Thrombocytopenia Antibodies Hepatitis A Antibody Hepatitis B Core Antibody Hepatitis B DNA Hepatitis Be Antigen (HBeAg) and Antibody Hepatitis B Surface Antibody Hepatitis B Surface Antigen (HBsAg) Hepatitis C Antibody (Anti-HCV) Hepatitis C RNA Hepatitis D Antigen And Antibody Her-2/nue Herpes Simplex Virus (HSV) Heterophil Antibody HFE Screen for Hereditary Hemochromatosis High-Density Lipoprotein (HDL) Cholesterol Homocysteine, Plasma Hs-CRP HSV Human Herpes Virus 8 (HHV8) Human Immunodeficiency Virus Antibody, Type 1 (HIV-1) Human Papilloma Virus (HPV) Huntington's Disease Polymerase Chain Reaction (PCR) 5-Hydroxyindole-Acetic Acid, Urine Immune Complex Assay Immunoglobulin (Ig) Influenza A and B Tests INR Insulin Autoantibodies Insulin, Free Insulin-Like Growth Factor-I (IGF-1), Serum Insulin-Like Growth Factor Ii International Normalized Ratio (INR) Intrinsic Factor Antibodies Iron-Binding Capacity (Total Iron-Binding Capacity [TIBC]) Iron Saturation (% Transferrin Saturation) Iron, Serum Lactate (Blood) Lactate Dehydrogenase (LDH) Lactate Dehydrogenase (LDH) isoenzymes Lactose Tolerance Test (Serum) Lanoxin Lap Score Lead LDH LDL Legionella Pneumophila Polymerase Chain Reaction (PCR) Legionella Titer Leukocyte Alkaline Phosphatase (LAP) LH Lipase Lipoprotein (A) Lipoprotein Cholesterol, Low Density Lipoprotein Cholesterol, High Density Liver Kidney Microsome Type 1 (LKM1) Antibodies Low-Density Lipoprotein (LDL) Cholesterol Lupus Anticoagulant (LA) Test Luteinizing Hormone (LH), Blood Lymphocytes Magnesium (Serum) Mean Corpuscular Volume (MCV) Metanephrines, Urine Methylmalonic Acid, Serum Mitochondrial Antibody (Antimitochondrial Antibody [AMA]) Monocyte Count Mycoplasma Pneumoniae Polymerase Chain Reaction (PCR) Myelin Basic Protein, Cerebrospinal Fluid Myoglobin, Urine Natriuretic Peptide Neisseria Gonorrhoeae Polymerase Chain Reaction (PCR) Neutrophil Count Norepinephrine 5' Nucleotidase Osmolality, Serum Osmolality, Urine Osmotic Fragility Test Paracentesis Fluid Parathyroid Hormone Parietal Cell Antibodies Partial Thromboplastin Time (PTT), Activated Partial Thromboplastin Time (aPTT) Pepsinogen I PFA pH, Blood Phenobarbital Phenytoin (Dilantin) Phosphatase, Acid Phosphatase, Alkaline Phosphate (Serum) pH, urine Plasminogen Platelet Aggregation Platelet Antibodies Platelet Count Platelet Function Analysis (PFA) 100 Assay Potassium (Serum) Potassium, Urine Procainamide Progesterone, Serum Prolactin Prostate-Specific Antigen (PSA) Prostatic Acid Phosphatase Protein (Serum) Protein C Assay Protein Electrophoresis (Serum) Protein S Assay Prothrombin Time (PT) Protoporphyrin (Free Erythrocyte) PSA PT PTT RDW Red Blood Cell Count Red Blood Cell Distribution Width (RDW) Red Blood Cell Folate Red Blood Cell Mass (Volume) Renin (Serum) Respiratory Syncytial Virus (RSV) Screen Reticulocyte Count Rheumatoid Factor RNP Rotavirus Serology Schilling Test Sedimentation Rate Semen Analysis SGOT SGPT Sickle Cell Test Smooth Muscle Antibody Sodium (Serum) Streptozyme Sucrose Hemolysis Test (Sugar Water Test) Sudan III Stain (Qualitative Screening For Fecal Fat) T3 (Triiodothyronine) T3 Resin Uptake (T3RU) T4, Serum T4, and Free (free thyroxine) Serum Free T4XXX Tegretol Testosterone Theophylline Thiamine Thoracentesis Fluid Thrombin Time (TT) Thyroglobulin Thyroid Binding Globulin (TBG) Thyroid Microsomal Antibodies Thyroid-Stimulating Hormone (TSH) Thyrotropin (Thyroid-Stimulating Hormone [TSH]) Receptor Antibodies Thyrotropin-Releasing Hormone (TRH) Stimulation Test TIBC Tissue Transglutaminase Antibody Transferrin Triglycerides Triiodothyronine Troponins, Serum TSH TT Unconjugated Bilirubin Urea Nitrogen Uric Acid (Serum) Urinalysis Urine Amylase Urine Bile Urine Calcium Urine cAMP Urine Catecholamines Urine Chloride Urine Copper Urine Cortisol, Free Urine Creatinine (24-Hour) Urine Crystals Urine Eosinophils Urine Glucose (Qualitative) Urine Hemoglobin, Free Urine Hemosiderin Urine 5-Hydroxyindole-Acetic Acid (Urine 5-HIAA) Urine Indican Urine Ketones (Semiquantitative) Urine Metanephrines Urine Myoglobin Urine Nitrite Urine Occult Blood Urine Osmolality Urine pH Urine Phosphate Urine Potassium Urine Protein (Quantitative) Urine Sodium (Quantitative) Urine Specific Gravity Urine Vanillylmandelic Acid (VMA) Varicella-Zoster Virus (VZV) Serologic Testing Vasoactive Intestinal Peptide (VIP) Venereal Disease Research Laboratories (VDRL) VIP Viscosity (Serum) Vitamin B12 Vitamin D, 1,25 Dihydroxy Calciferol, Vitamin D 25(OH)D (25- Hydroxyvitamin D) Vitamin K von Willebrand's Factor WBCs Westergren White Blood Cell Count d-Xylose absorption Section III Diseases and Disorders 1. Abdominal Abscess 2. Abdominal Aortic Aneurysm 3. Achalasia 4. Acid-Base Disorders 5. Acute Kidney Injury 6. Addison's Disease (Adrenal Insufficiency) 7. Adrenal Mass 8. Alkaline Phosphatase Elevation 9. ALT/AST Elevation 10. Amenorrhea, Primary 11. Amenorrhea, Secondary 12. Anemia, Macrocytic 13. Anemia, Microcytic 14. Antinuclear Antibody (ANA)-Positive 15. Aortic Dissection 16. Appendicitis 17. Ascites 18. Avascular Necrosis 19. Back Pain, Acute, Lumbosacral (LS) Area 20. Bilirubin Elevation 21. Bleeding Disorder, Congenital 22. Brain Abscess 23. Breast Mass 24. Carcinoid Syndrome 25. Cardiomegaly on Chest Radiograph 26. Cholangitis 27. Cholecystitis 28. Cholelithiasis 29. Complex Regional Pain Syndrome (Reflex Sympathetic Dystrophy [Rsd]) 30. Constipation 31. Creatinine Phosphokinase (Cpk) Elevation 32. Cushing's Syndrome 33. Deep Vein Thrombosis (Dvt) 34. Delayed Puberty 35. Delirium 36. Diarrhea 37. Disseminated intravascular coagulation (DIC) 38. Diverticulitis 39. Dyspepsia 40. Dyspnea 41. Dysuria 42. Ectopic Pregnancy 43. Edema, Lower Extremity 44. Endocarditis, Infective 45. Endometriosis 46. Epiglottitis 47. Fatigue 48. Fever of Undetermined Origin (FUO) 49. Galactorrhea 50. Genital Lesions/Ulcers 51. Goiter 52. Granulomatosis With Polyangiitis 53. Gynecomastia 54. Hearing Loss 55. Hematochezia 56. Hematuria 57. Hemochromatosis 58. Hemoptysis 59. Hepatomegaly 60. Hirsutism 61. Hyperaldosteronism 62. Hypercalcemia 63. Hyperkalemia 64. Hypermagnesemia 65. Hypernatremia 66. Hyperphosphatemia 67. Hyperthyroidism 68. Hypocalcemia 69. Hypoglycemia 70. Hypogonadism 71. Hypokalemia 72. Hypomagnesemia 73. Hyponatremia 74. Hypophosphatemia 75. Hypothyroidism 76. Immunodeficiency 77. Infertility 78. Jaundice 79. Joint Effusion 80. Liver Function Test Elevations 81. Liver Mass 82. Lymphadenopathy, Generalized 83. Malabsorption, Suspected 84. Meningioma 85. Mesenteric Ischemia 86. Mesothelioma 87. Metabolic Acidosis 88. Metabolic Alkalosis 89. Microcytosis 90. Multiple Myeloma 91. Multiple Sclerosis 92. Myalgias 93. Muscle Weakness 94. Neck Mass 95. Neuropathy 96. Neutropenia 97. Osteomyelitis 98. Pancreatic Mass 99. Pancreatitis, Acute 100. Parapharyngeal Abscess 101. Pelvic Mass 102. Peripheral Arterial Disease (PAD) 103. Pheochromocytoma 104. Pituitary Adenoma 105. Pleural Effusion 106. Polyarteritis Nodosa 107. Polycythemia 108. Portal Vein Thrombosis 109. Precocious Puberty 110. Proteinuria 111. Pruritus, Generalized 112. Pulmonary Embolism 113. Pulmonary Hypertension 114. Pulmonary Nodule 115. Purpura 116. Renal Artery Stenosis 117. Renal Mass 118. Rotator Cuff Tear 119. Sarcoidosis 120. Scrotal Mass 121. Small-Bowel Obstruction 122. Spinal Epidural Abscess 123. Splenomegaly 124. Stroke 125. Subarachnoid Hemorrhage 126. Subclavian Steal Syndrome 127. Subdural Hematoma 128. Superior Vena Cava Syndrome 129. Syncope 130. Testicular Torsion 131. Thoracic Outlet Syndrome 132. Thrombocytopenia 133. Thrombocytosis 134. Thyroid Nodule 135. Thyroiditis 136. Tinnitus 137. Transient Ischemic Attack (TIA) 138. Urethral Discharge 139. Urolithiasis 140. Urticaria 141. Vaginal Discharge 142. Vertigo 143. Viral Hepatitis 144. Weight Gain 145. Weight Loss, Involuntary Appendices Appendix I: General Guidelines for Ordering Computed Tomography (CT) Appendix II: General Guidelines for Ordering Computed Tomography Angiography (CTA) Appendix III: General Guidelines for Ordering Magnetic Resonance Imaging (MRI) Index