Diagnostic procedures
Alphabetical list of diagnostic procedures
- 3-D Body Scan - see Dual Modality Imaging; Computed Tomography of the Body
- Abdominal Aorta Ultrasonography (Abdominal Aorta Echogram, Abdominal Aorta Ultrasound)
- Abdominal Plain Film - see Flat-Plate Radiography of Abdomen
- Abdominal Ultrasound - see Abdominal Aorta Ultrasonography; Gallbladder and Biliary System Ultrasonography; Liver Ultrasonography; Obstetric Ultrasonography; Pancreas Ultrasonography; Spleen Ultrasonography
- ABI - see Ankle-Brachial Index
- Accu-Chek - see Glucose Monitoring Machines
- ACG - see Apexcardiography
- Acid Perfusion (Bernstein) Test
- Acoustic Immittance Tests
- Acquired Immune Deficiency Syndrome (AIDS) Evaluation Battery
- ACTH Stimulation Test
- Activated Partial Thromboplastin Substitution Test
- Acute Abdominal Series
- Adenovirus Immunofluorescence
- AHI - see Polysomnography
- Air Tonometry - see Tonometry test for glaucoma
- Aldosterone Suppression Test
- Allergy Skin Test - see Skin Test for Hypersensitivity
- Amino Acid Screen see Dinitrophenylhydrazine Test
- Amniocentesis and Amniotic Fluid Analysis
- Amniotic Fluid, Alpha-Fetoprotein - see Amniocentesis and Amniotic Fluid Analysis
- Amniotic Fluid, Chromosome Analysis - see Amniocentesis and Amniotic Fluid Analysis
- Amniotic Fluid, Erythroblastosis Fetalis - see Amniocentesis and Amniotic Fluid Analysis
- Amniotic Fluid Analysis - see Amniocentesis and Amniotic Fluid Analysis
- Amsler Grid Test
- Angiocardiography Procedure - see Cardiac Catheterization
- Angiogram (Angiography) - see Arteriogram, Cardiac Catheterization; Cerebral Angiogram; Pulmonary Angiogram; Renal Angiogram
- Angiography - see Cerebral Angiogram
- Ankle-Brachial Index (ABI)
- Antegrade Pyelography
- Anti-La/SS-B Test
- Antiribonucleoprotein Test - see Anti-RNP Test
- Anti-RNP Test (Antiribonucleoprotein Test, Extractable Nuclear Antigen)
- Anti-Ro/SS-A Test
- Anti-Sm Test (Extractable Nuclear Antigen)
- Antithrombin III (AT-III) Test
- Apexcardiography (ACG)
- Apnea Hypopnea Index - see Polysomnography
- Apnea Test
- ART - see Automated Reagin Test
- Arteriogram
- Arthrography
- Arthroscopy
- ASC-US - see Pap Smear
- Aspirin Tolerance Test (ASA Tolerance Test, Bleeding Time Aspirin Tolerance Test)
- AT-III Test - see Antithrombin III Test
- Audiometry Test (Pure Tone Audiometry and Speech Audiometry, Vestibular Evoked Myogenic Potential)
- Automated Reagin Testing (ART)
- Autopsy
- Bacterial Inhibition Assay - see Guthrie Test for Phenylketonuria
- BAEP - see Brainstem Auditory Evoked Potential
- Banding in Genetic Disorders
- Barium Enema (BE)
- Barium Swallow
- Barr Body Analysis Buccal Smear for Staining Sex Chromatin Mass
- Basal Gastric Secretion Test - see Hollander Test
- BE - see Barium Enema
- Benedict's Test
- Bentiromide Test - see Chymex Test for Pancreatic Function
- Bernstein Test - see Acid Perfusion Test
- Beta-Glucosidase
- Betke-Kleihauer Stain (Fetal Hemoglobin Stain, Kleihauer-Betke Stain, K-B)
- BIA - see Guthrie Test for Phenylketonuria
- Biograph Imaging - see Dual Modality Imaging
- Bladder Tumor–Associated Antigen - see BTA Test for Bladder Cancer
- Blastomycosis (Gilchrist's) Skin Test
- Bleeding Time Aspirin Tolerance Test - see Aspirin Tolerance Test
- Blood Volume Determination Studies
- Blue Light Test - see Tonometry Test for Glaucoma
- BMD - see Bone Densitometry
- BMR - see Basal Metabolic Rate
- Bone Densitometry (Dual-Energy X-Ray Absorptiometry, DEXA)
- Bone Marrow Scan
- Bone Radiography
- Bone Scan (Bone Scintigraphy)
- Bone Scintigraphy - see Bone Scan
- Bone Ultrasonometry
- Brain Biopsy
- Brain Echogram - see Brain Ultrasonography
- Brain Scan, Cerebral Flow and Pathology
- Brain Ultrasonography (Brain Echogram, Brain Ultrasound, Echoencephalogram)
- Brain Ultrasound - see Brain Ultrasonography
- Brainstem Auditory-Evoked Potential (BAEP)
- Brazelton Neonatal Behavioral Assessment Scale
- Breast Ultrasonography (Breast Echogram, Breast Ultrasound)
- Breath Hydrogen Analysis
- Breath Test (Carbon-13 or Carbon-14 Urea Breath Test) - see Urea Breath Test
- Bronchial Challenge Test - see Methacholine Challenge Test
- Bronchial Washing (Bronchoalveolar Lavage) Specimen
- Bronchoalveolar Lavage - see Bronchial Washing, Specimen
- Bronchoscopy
- Brushing Cytology, Specimen
- BTA Test for Bladder Cancer
- Buccal Smear for Sex Chromatin Evaluation - see Barr Body Analysis, Buccal Smear for Staining Sex Chromatin Mass
- 14C-Cholate Breath Test - see Bile Salt Absorption Test
- Capillary Fragility Test (Rumpel-Leede Tourniquet Test)
- Captopril Renography - see Renocystogram
- Carbon-13 or Carbon-14 Urea Breath Test - see Urea Breath Test
- Cardiac Calcium Scoring (Coronary Artery Calcium Scoring)
- Cardiac Catheterization (Angiocardiography, Cardioangiography, and Coronary Angiography)
- Cardiac Output, Thermodilution
- Cardiac Radiography
- Cardioangiography - see Cardiac Catheterization
- Cardiopulmonary Sleep Study - see Polysomnography
- Carotid Doppler - see Doppler Ultrasonic Flow Studies
- Carotid Phonoangiography - see Color Duplex Ultrasonography
- CAT Scan - see Cerebral Computed Tomography; Computed Tomography of the Body; Tomography of Paranasal Sinuses
- CD4 - see Acquired Immune Deficiency Syndrome Evaluation Battery
- Cerebral Angiography (Cerebral Angiogram)
- Cerebral Computed Tomography
- Cerebral Near-Infrared Spectroscopy - see Transcranial, Near Infrared Spectroscopy
- Cervical/Vaginal Cytology - see Pap Smear
- Chest Radiography (Chest X-Ray, CXR)
- Cholangiogram - see Endoscopic Retrograde Cholangiopancreatography; Intravenous Cholangiography; Percutaneous Transhepatic Cholangiography; T-tube Cholangiography, Postoperative
- Cholecystography Radiography - see Gallbladder and biliary system ultrasonography Note: Cholecystography is being replaced by ultrasonography, which is now the diagnostic test of choice, or by MRI/CT in selected situations
- Chorionic Villi Sampling
- Chymex Test For Pancreatic Function (Bentiromide Test, Chymotrypsin) - see Chymex Test for Pancreatic Function
- Cisternography, CSF Flow Scan - see Cisternography, Radionuclide Cisternography, Radionuclide (CSF Flow Studies, CSF Flow Scan)
- Coccidioidomycosis Skin Test
- Cognitive Tests, Event-Related Potentials
- Colonoscopy
- Color Duplex Ultrasonography
- Color Vision Tests
- Colposcopy
- Companion - see Glucose Monitoring Machines
- Compression Ultrasound (CUS)
- Computed Tomographic Percutaneous Transsplenic Portography - see Splenoportography
- Computed Tomography of the Body (Spiral [Helical], Electron Beam [EBCT, Ultrafast], High Resolution [HRCT])
- Computed Tomography of the Brain - see Cerebral Computed Tomography
- Computed Tomography of the Heart - see Cardiac Calcium Scoring
- Conization of Cervix (Cold Knife Conization)
- Contraction Stress Test - see Fetal Monitoring, External, Contraction Stress Test and Oxytocin Challenge Test
- Contrast Venography - see Venography
- Coronary Angiography - see Cardiac Catheterization
- Coronary Artery Calcium Scoring - see Cardiac Calcium Scoring
- Coronary Intravascular Ultrasonography (Coronary Sonogram, Coronary Ultrasound)
- CPA - see Carotid Phonoangiography
- CPAP Titration Study - see Polysomnography
- CPS - see Polysomnography
- CSF Flow Studies - see Cisternography, Radionuclide
- CST (Contraction Stress Test) - see Fetal Monitoring, External, Contraction Stress Test (CST) and Oxytocin Challenge Test (OCT)
- CT Scan - see Cerebral Computed Tomography; Computed Tomography of the Body; Tomography, Paranasal Sinuses
- CT-PTSP - see Splenoportography
- 13C-UBT, 14C-UBT - see Urea Breath Test
- Culdoscopy
- Cutaneous Immunofluorescence Biopsy
- CXR - see Chest Radiography
- Cystography, Retrograde
- Cystometry
- Cystoscopy
- Cystourethrography, Voiding
- Cytologic Study - see Bronchial Washing, Specimen; Brushing Cytology, Specimen; Cerebrospinal Fluid, Routine, Culture and Cytology—Specimen; Cytologic Study of Breast Cyst, Effusions, Gastrointestinal Tract, Nipple Discharge, Respiratory Tract, or Urine; Ocular Cytology—Specimen ; Oral Cavity Cytology—Specimen
- Cysts and Nipple Discharge - see Cytologic Study of Breast Cyst; Cytologic Study of Nipple Discharge
- Cytologic Study of Breast Cyst
- Cytologic Study of Effusions
- Cytologic Study of Gastrointestinal Tract
- Cytologic Study of Nipple Discharge
- Cytologic Study of Respiratory Tract
- Cytologic Study of Urine
- Cytology - see Cytologic Study—Specimen and Cytologic Study of Urine
- Densitometry - see Bone Densitometry
- Denver Developmental Screening Test (DDST), Denver II
- 11-Deoxycortisol (Compound S, 11-DOC) Test
- DEXA - see Bone Densitometry
- Dexamethasone Suppression Test
- Diascan - see Glucose Monitoring Machines
- Diffusing Capacity for Carbon Monoxide (DLCO, Transfer Factor)
- Diffusion-Weighted Imaging - see Magnetic Resonance Imaging (MRI)
- Digital Mammography - see Mammography
- Digital Subtraction Angiography (DSA) and Transvenous Digital Subtraction
- Dilation and Curettage (D & C)
- Dinitrophenylhydrazine (DNpH) Test
- Dipyridamole-Thallium Scan - see Heart Scan
- Discovery Imaging - see Dual Modality Imaging
- DNPH - see Dinitrophenylhydrazine Test
- Doppler Ultrasonographic, Transcranial - see Doppler Ultrasonographic Flow Studies
- Doppler Ultrasonographic Flow Studies, Transcranial - see Doppler Ultrasonographic Flow Studies
- Doppler Ultrasonographic Flow Studies (Includes Carotid Doppler, Carotid Artery Echography, Carotid Artery Ultrasonography, Duplex Ultrasonography, Transcranial Doppler Ultrasonography)
- Dual Energy X-Ray Absorptiometry - see Bone Densitometry
- Dual Modality Imaging (3-D Body Scan, PET/CT, SPECT/CT, Biograph, Discovery VH Hawkeye, Discovery VI Positrace, Discovery LS, Gemini)
- d-Xylose - see Xylose—Blood ; Xylose—Urine ; d-Xylose Absorption Test (Xylose Tolerance Test)
- Duplex Ultrasonography - see Doppler Ultrasonic Flow Studies
- EBCT - see Computed Tomography of the Body
- ECG - see Electrocardiography
- Echocardiography (Echo, Heart Sonogram, Heart Ultrasonogram)
- Echoencephalography - see Brain Ultrasonography
- Echography/Echogram - see Abdominal Aorta Ultrasonography; Brain Ultrasonography; Breast Ultrasonography; Echocardiography; Eye and Orbit Ultrasonography; Gallbladder and Biliary System Ultrasonography; Gynecologic Ultrasonography; Kidney Ultrasonography; Liver Ultrasonography; Obstetric Ultrasonography; Pancreas Ultrasonography; Prostate Ultrasonography; Spleen Ultrasonography; Thyroid Ultrasonography; Transesophageal Ultrasonography; Urinary Bladder Ultrasonography
- EEG - see Electroencephalography
- EGD - see Esophagogastroduodenoscopy
- EKG - see Electrocardiography
- EKG, Signal-Averaged - see Signal-Averaged Electrocardiography
- Electrocardiography (ECG, EKG)
- Electroencephalography (EEG)
- Electromyelography - see Electromyography and Nerve Conduction Studies
- Electromyography (EMG) and Nerve Conduction Studies (Electromyelogram)
- Electromyography (EMG) - see Electromyography and Nerve Conduction Studies
- Electron Beam CT - see Computed Tomography of the Body
- Electron Microscopy (Cardiomyopathy, Nerve Tissue, Small Bowel Mucosa)
- Electronystagmography (Eye Movement, ENG) Test
- Electrophysiologic Study (EPS)
- EMG - see Electromyography and Nerve Conduction Studies
- Endoscopic Retrograde Cholangiopancreatography (ERCP)
- Endoscopic Ultrasonography (EUS)
- EPS - see Electrophysiologic Study
- ERCP - see Endoscopic Retrograde Cholangiopancreatography
- Ergonovine Maleate Test
- Esophageal Acidity Test (Tuttle Test)
- Esophageal Manometry
- Esophageal Radiography
- Esophagogastroduodenoscopy (EGD)
- Esterase Stain
- Estradiol Receptor and Progesterone Receptor in Breast Cancer
- Estrogen Receptor Assay - see Estradiol Receptor and Progesterone Receptor in Breast Cancer
- EUS - see Endoscopic Ultrasonography
- Exactech - see Glucose Monitoring Machines
- Excretory Urography - see Intravenous Pyelography
- Exercise Stress Test - see Stress/Exercise Test
- Exophthalmometry Test
- Extractable Nuclear Antigen (ENA Complex) - see Anti-Sm Testc; Anti-RNP Test
- Eye and Orbit Ultrasonography (Eye and Orbit Echograms, Eye and Orbit Sonograms)
- Eye Radiography (X-Ray Film of the Eye)
- Fast MRI - see Magnetic Resonance Imaging
- Fecal Leukocytes, Stool
- Ferric Chloride Test
- Fetal Hemoglobin Stain - see Betke-Kleihauer Stain
- Fetal Monitoring, External
- Fetal Monitoring, External, Contraction Stress Test (CST) and Oxytocin Challenge Test (OCT)
- Fetal Monitoring, External, Non–Stress Testing (NST)
- Fetal Monitoring, Internal
- Fetoscopy
- Fetus Examination After Death - see Autopsy
- FFDM - see Mammography
- Fine-Needle Aspiration Biopsy - see Needle Aspiration
- Flat-Plate Radiography of Abdomen (Kidney-Ureter-Bladder, KUB, Scout Film)
- Flexible Sigmoidoscopy - see Sigmoidoscopy
- Fluorescein Angiography (Eye Fundus)
- Fluorescein Meniscus Test - see Schirmer Tearing Eye Test
- Fluoroscopy
- FMRI - see Magnetic Resonance Imaging
- FMT - see Schirmer Tearing Eye Test
- Fractional Excretion of Sodium in Urine - see Renal Indices
- Frei Skin Test for Lymphogranuloma Venereum
- Frozen Tissue Section
- Fructose Challenge Test
- Full Field Digital Mammography - see Mammography
- Functional MRI - see Magnetic Resonance Imaging
- Galactose Tolerance Test - see Galactose Loading Test
- Gallbladder and Biliary System Ultrasonography
- Gallbladder Scan - see Hepatobiliary Scan
- Gallium Scan - see Gallium Scan of Bone, Brain, Breast, or Liver
- Gallium Scan of Bone
- Gallium Scan of Brain
- Gallium Scan of Breast
- Gallium Scan of Liver
- Gas Ventilation Lung Scan
- Gastric Acid Analysis Test (Peptavlon Stimulation Test)
- Gastric Acid Secretion Test (Gastric Acid Stimulation Test)
- Gastric Analysis, Basal Nocturnal Acid Output
- Gastroscopy or Gastroduodenojejunoscopy (GJD)
- GCT - see Glucose Challenge Test
- Gemini Imaging - see Dual Modality Imaging
- Gilchrist's Skin Test - see Blastomycosis Skin Test
- Glucochek - see Glucose Monitoring Machines
- Glucometer - see Glucose Monitoring Machines
- Glucoscan - see Glucose Monitoring Machines
- Glucose Alert - see Glucose Monitoring Machines
- Glucose Challenge Test (GCT, O'Sullivan Test, 50-Gram 1-Hour Glucose Tolerance Test, Oral Glucose Screening)
- Glucose Monitoring Machines
- Gram Stain
- Guthrie Test for Phenylketonuria
- Gynecologic Ultrasonography (Gynecologic Echogram, Gynecologic Sonogram, Pelvic Sonogram, Pelvic Ultrasound)
- Hawkeye Imaging - see Dual Modality Imaging
- hCFHrp - see BTA Test for Bladder Cancer
- Head-Up Tilt Table Test - see Tilt Table Test
- Hearing Test for Loudness, Recruitment - see Audiometry Test
- Heart Scan
- Heart Shunt Scan
- Heart Sonogram - see Echocardiography
- Heart Ultrasound - see Echocardiography
- Heinz Body Stain
- Helical CT - see Computed Tomography of the Body
- Hepatobiliary Scan (HIDA Scan)
- HIDA Scan - see Hepatobiliary Scan
- High-Resolution CT - see Computed Tomography of the Body
- His Bundle Electrography
- Histamine Stimulation Test - see Gastric Acid Secretion Test (Gastric Acid Stimulation Test)
- Histoplasmosis Skin Test
- HIV Battery - see Acquired Immunodeficiency Syndrome Evaluation Battery
- HIV-1 P24 Antigen - see Acquired Immunodeficiency Syndrome Evaluation Battery
- Hollander (Basal Gastric Secretion) Test
- Holter Monitor
- HRCT - see Computed Tomography of the Body
- Human Immunodeficiency Virus - see Acquired Immunodeficiency Syndrome Evaluation Battery
- Human Tumor Stem-Cell Assay
- Hydrocephalus Radiologic Evaluation
- Hyperventilation Test
- Hysterosalpingography (Uterosalpingography)
- Hysteroscopy
- 125I-Labeled Fibrinogen (Fibrinogen Uptake) Leg Scan
- Indentation Tonometry - see Tonometry Test for Glaucoma
- Intraductal Ultrasonography - see Pancreas Ultrasonography
- Intraocular Pressure Measurement - see Tonometry Test for Glaucoma
- Intravascular Ultrasonography - see Coronary Intravascular Ultrasonography
- Intravenous Cholangiography
- Intravenous Pyelography (IVP, Excretory Urography)
- Inulin Clearance Test
- IVP - see Intravenous Pyelography
- Ivy Bleeding Time - see Bleeding Time, Ivy—Blood ; Aspirin Tolerance Test
- Kidney Echography - see Kidney Ultrasonography
- Kidney Scan - see Renocystogram
- Kidney Ultrasonography (Kidney Echography, Kidney Ultrasound)
- Kidney Ultrasound - see Kidney Ultrasonography
- Kidney-Ureter-Bladder - see Flat-Plate Radiography of Abdomen
- Kleihauer-Betke Stain - see Betke-Kleihauer Stain
- KUB (Kidney-Ureters-Bladder) - see Flat-Plate Radiography of Abdomen
- Laparoscopy (Peritoneoscopy)
- Laxative Abuse Test - see Phenolphthalein Test
- Lecithin/Sphingomyelin Ratio - see Amniocentesis and Amniotic Fluid Analysis
- LEEP - see Colposcopy; Pap Smear
- Liquid Pap Test - see Pap Smear
- Liver Biopsy (Percutaneous Liver Biopsy)
- Liver Echography - see Liver Ultrasonography
- Liver Function Tests - see Liver Battery - Serum
- Liver 131I Scan
- Liver Scan - see Computed Tomography of the Body; Hepatobiliary Scan
- Liver/Spleen Scan - see Hepatobiliary Scan
- Liver 99mTc Scan of Blood Vessels - see Hepatobiliary Scan
- Liver Ultrasonography (Liver Echography, Liver Ultrasound)
- Liver Ultrasound - see Liver Ultrasonography
- LP Examination - see Lumbar Puncture
- L/S Ratio - see Amniocentesis and Amniotic Fluid Analysis
- Lumbar Puncture
- Lung Function Test - see Pulmonary Function Test
- Lung Scan, Perfusion and Ventilation (V/Q Scan)
- Lung Volumes - see Pulmonary Function Test
- Lymphangiography (Lymphography, Lymphangiogram)
- Lymphocyte Subset Enumeration - see Acquired Immunodeficiency Syndrome Evaluation Battery
- Lymphography - see Lymphangiography
- Magnetic Resonance Angiography (MRA)
- Magnetic Resonance Cholangiopancreatography (MRCP)
- Magnetic Resonance Imaging (MRI)
- Magnetic Resonance Neurography (MRN, Neurography)
- Magnetic Resonance Spectroscopy (MRS)
- Magnetic Resonance Urography
- Mammography (Mammogram, Screen Film Mammography [SFM])
- Mantoux Skin Test (PPD Test, Purified Protein Derivative Test, TB Test, Tuberculin Skin Test, TST, Tuberculosis Test)
- Meckel Scan
- Mediastinoscopy
- Mendelian Inheritance in Genetic Disorders
- Methacholine Challenge Test (Bronchial Challenge Test)
- MIBG (131I-m-Iodobenzylguanidine) Scan
- Mini–Mental State Exam (MMSE)
- Miraluma - see Scintimammography
- MJD GENE - see SCA Gene Test
- MMSE - see Mini–Mental State Exam
- Motile Sperm, Wet Mount
- MRA - see Magnetic Resonance Angiography
- MRCP - see Magnetic Resonance Cholangiopancreatography
- MRI - see Magnetic Resonance Imaging
- MRN - see Magnetic Resonance Neurography
- MRU - see Magnetic Resonance Urography
- MSLT - see Polysomnography
- Multigated Equilibrium Heart Scan (MUGA) - see Heart Scan
- Multiple Sleep Latency Test - see Polysomnography
- Myelogram
- Near-Infrared Spectroscopy - see Transcranial, Near-Infrared Spectroscopy
- Needle Aspiration
- Neogram Amino Acids and Acylcarnitines Test
- Nephrotomography
- Nerve Biopsy
- Nerve Conduction Studies
- Neurography - see Magnetic Resonance Neurography
- Nipple Discharge Cytology - see Cytologic Study of Nipple Discharge
- NIRS - see Transcranial, Near-Infrared Spectroscopy
- Nitroglycerin Scan - see Heart Scan
- Nocturnal Penile Tumescence Testing - see Polysomnography
- Non–Stress Testing - see Fetal monitoring, External, Non–Stress Testing (NST)
- NST - see Fetal Monitoring, External, Non–Stress Testing (NST)
- Obstetric Ultrasonography (Obstetric Echogram, Obstetric Ultrasound)
- Obstetric Ultrasound - see Obstetric Ultrasonography
- OCT - see Fetal Monitoring, External, Contraction Stress Test (CST) and Oxytocin Challenge Test (OCT)
- Octreotide Scan (Somatostatin-Receptor Scintigraphy)
- Oculoplethysmography (OPG)
- Oculopneumoplethysmography (OPPG)
- OKT-3 Cells, OKT-4 Cells, OKT-8 Cells - see Acquired Immune Deficiency Syndrome Evaluation Battery
- One-Step - see Glucose Monitoring Machines
- One Touch - see Glucose Monitoring Machines
- Ophthalmodynamometry
- Oral Glucose Screening - see Glucose Challenge Test
- O'Sullivan Test - see Glucose Challenge Test
- Osteogram - see Radiography of the Skull, Chest, and Cervical Spine
- Otoscopy, Video
- Oximetry (Pulse Oximetry, SpO2)
- Oxytocin Challenge Test - see Fetal Monitoring, External, Contraction Stress Test (CST) and Oxytocin Challenge Test (OCT)
- Pachymetry Test for Corneal Thickness
- Pancreas Ultrasonography (Pancreas Echogram, Pancreas Ultrasound)
- Pap Smear
- Pap Smear, Ultrafast (UFP) and Fine-Needle Aspiration
- Paracentesis (Peritoneal Fluid Analysis)
- Paracentesis, Fluid Analysis - see Paracentesis
- PCG - see Phonocardiography
- Pelvic Echogram - see Gynecologic Ultrasonography
- Pelvic Ultrasonography - see Gynecologic Ultrasonography
- Pelvimetry and Pelvicephalography
- Pelvimetry (Pelvic Examination, Digital)
- Penicillin Skin Test
- Penicillinase Test (Beta-Lactamase Production Test)
- Peptavlon Stimulation Test - see Gastric Acid Analysis Test
- Percutaneous Liver Biopsy - see Liver Biopsy
- Percutaneous Transhepatic Cholangiography (PTHC, PTC)
- Perfusion Lung Scan - see Lung Scan, Perfusion and Ventilation
- Pericardiocentesis
- Peritoneal Fluid Analysis - see Paracentesis
- Peritoneoscopy - see Laparoscopy
- Persantine-Sestamibi Stress Test and Scan - see Heart Scan
- PET Scan - see Positron Emission Tomography
- PET/CT Scan - see Dual Modality Imaging
- PFT - see Pulmonary Function Test
- Phenolphthalein Test (Laxative Abuse Test)
- Phlebography - see Venography
- Phonocardiography (PCG)
- PIR - see Pulse Volume Recording of Peripheral Vasculature
- Platelet Adhesion Test
- Plethysmography - see Pulse Volume Recorder Testing of Peripheral Vasculature
- Pneumotonometry - see Tonometry Test for Glaucoma
- Polysomnography (PSG, Cardiopulmonary Sleep Study, CPAP Titration Study, Multiple Sleep Latency Test, MSLT, Sleep Apnea Study, Sleep Oximetry, Sleep Study)
- Positrace Imaging - see Dual Modality Imaging
- Positron Emission Tomography (PET)
- PPD - see Mantoux Skin Test
- Proctoscopy
- Prostate Ultrasonography (Prostate Echogram, Prostate Ultrasound)
- PTC - see Percutaneous Transhepatic Cholangiography
- PTHC - see Percutaneous Transhepatic Cholangiography
- Pulmonary Angiogram (Pulmonary Angiography, Pulmonary Arteriography)
- Pulmonary Arteriography - see Pulmonary Angiogram
- Pulmonary Artery Catheterization
- Pulmonary Function Tests (PFT)
- Pulmonary Scintiphotography - see Lung Scan, Perfusion and Ventilation
- Pulsatility Index Ratio - see Pulse Volume Recording of Peripheral Vasculature
- Pulse Oximetry - see Oximetry
- Pulse Volume Recorder Testing of Peripheral Vasculature
- Pure Tone Audiometry - see Audiometry Test
- Pyelography, Antegrade - see Antegrade Pyelography
- Pyelography, Retrograde - see Retrograde Pyelography
- PYP Scan - see Heart Scan
- Radiographic Absorptiometry - see Bone Densitometry
- Radiography - see Bone Radiography; Cardiac Radiography; Chest Radiography; Esophageal Radiography; Eye Radiography; Flat-Plate Radiography of Abdomen; Radiography of Skull, Chest, and Cervical Spine; Sinus Radiography
- Radiography of Skull, Chest, and Cervical Spine
- Radionuclide Breast Imaging - see Scintimammography
- Radionuclide Venography - see Venography
- Raynaud's Cold Stimulation Test
- RDI - see Polysomnography
- Recombigen Latex Agglutination Assay - see Acquired Immune Deficiency Syndrome Evaluation Battery
- Rectal Culture, Swab
- Rectal Manometry - see Rectal Motility Test
- Rectal Motility Test (Rectal Manometry)
- Rectosphincteric Manometry - see Rectal Motility Test
- Refraction Vision Test
- Renal Angiogram (Renal Arteriogram)
- Renal Arteriogram - see Renal Angiogram
- Renal Echogram - see Kidney Ultrasonography
- Renal Function Tests - see Concentration Test—Urine ; Creatinine Clearance, Serum—Urine ; Renal Indices; Inulin Clearance Test
- Renal Indices (FENa, RFI)
- Renal Scan - see Renocystogram, Kidney Scan
- Renal Ultrasonography - see Kidney Ultrasonography
- Renocystogram (Renogram Scan, Renal Scan)
- Renogram Scan - see Renocystogram
- Respiratory Distress Index - see Polysomnography
- Reticulocyte Production Index (RPI)
- Retinoblastoma Chromosome Abnormalities
- Retrograde Pyelography
- Reverse Giemsa - see Banding in Genetic Disorders
- RFI - see Renal Indices
- Rinne Test - see Tuning Fork Test, of Weber, Rinne, and Schwabach Tests
- RPR - see Rapid Plasma Reagin Test - Blood
- Rubin's Test (Uterotubal Insufflation)
- Rumpel-Leede Tourniquet Test - see Capillary Fragility Test
- SAECG - see Signal-Averaged Electrocardiography
- Sahara Clinical Bone Ultrasonometry - see Bone Ultrasonometry
- SCA Gene Test
- Schick Test for Diphtheria
- Schilling Test
- Schirmer Tearing Eye Test
- Scintimammography (Miraluma, Sestamibi Breast Imaging, Radionuclide Breast Imaging)
- Scout Film - see Flat-Plate Radiography of Abdomen
- Screen Film Mammography - see Mammography
- Scrotum and Testicular Ultrasonography
- Secretin Provocation Test - see Secretin Stimulation for Zollinger-Ellison Syndrome
- Secretin Stimulation for Zollinger-Ellison Syndrome (Secretin Provocation Test)
- Secretin Test for Pancreatic Function
- Sentinel Lymph Node Biopsy (SLNB)
- Sestamibi Breast Imaging - see Scintimammography
- Sestamibi-Dipyridamole Stress Test and Scan - see Heart Scan
- Sestamibi Exercise Testing and Scan - see Heart Scan
- SFM - see Mammography
- Siderocyte Stain - see Hemosiderin Stain-Urine
- Sigmoidoscopy
- Signal-Averaged Electrocardiography (Signal-Averaged ECG, SAECG)
- Sims-Huhner Test
- Single-Photon Emission Computed Tomography (SPECT Scan), Brain
- Sinus Radiography
- Sjögren's Antibodies (SS-A [Ro] and SS-B [La]) - see Anti-La/SS-B Test; Anti-Ro/SS-A Test
- Skin Test for Hypersensitivity
- Sleep Apnea Study - see Polysomnography
- Sleep Oximetry - see Polysomnography
- Sleep Study - see Polysomnography
- Slit-Lamp Vision Test
- SLNB - see Sentinel Lymph Node Biopsy
- Small Bowel Series
- S Mucopolysaccharide Turnover
- Somatosensory Evoked Potential
- Somatostatin-Receptor Scintigraphy - see Octreotide Scan
- Sonometry - see Bone Ultrasonometry
- SPECT Scan - see Single-Photon Emission Computed Tomography, Brain
- SPECT/CT - see Dual Modality Imaging
- Speech Audiometry - see Audiometry Test
- Sphingomyelinase
- Spinal Puncture - see Lumbar Puncture
- Spiral CT - see Computed Tomography of the Body
- Spirometry - see Pulmonary Function Test
- Speech Recognition Threshold - see Spondee Threshold Speech Test
- Spleen Echogram - see Spleen Ultrasonography
- Spleen Scan
- Spleen Ultrasonography (Spleen Echogram, Spleen Ultrasound)
- Spleen Ultrasound - see Spleen Ultrasonography
- Splenoportography
- SpO2 - see Oximetry
- Spondee Threshold Speech Test
- Sputum, Gram Stain - see Gram Stain
- Sputum Cytology - see Cytologic Study of Respiratory Tract
- Stereotactic Breast Biopsy
- Stress/Exercise Test
- Stress Test, Pharmacologic
- Sucrose Hemolysis Test
- Sudan Black B Stain
- SUDS - see Acquired Immune Deficiency Syndrome Evaluation Battery
- Sugar Water Test Screen - see Sucrose Hemolysis Test
- Supreme BG - see Glucose Monitoring Machines
- Swan-Ganz Catheter Pulmonary Wedge Pressure - see Pulmonary Artery Catheterization
- Tangent Screen Test
- TB Test - see Mantoux Skin Test
- TBUT - see Schirmer Tearing Eye Test
- Tear Break-Up Time - see Schirmer Tearing Eye Test
- TEE - see Transesophageal Ultrasonography
- Tensilon Test
- Testicles Ultrasonography - see Scrotum and Testicular Ultrasonography
- TFI - see Pulse Volume Recording of Peripheral Vasculature
- Thallium-Dipyridamole Stress Test and Scan - see Heart Scan
- Thallium Exercise Scintigraphy - see Heart Scan
- Thallium Imaging - see Heart Scan
- Thoracentesis
- Thyroid Echogram - see Thyroid Ultrasonography
- Thyroid Scan
- Thyroid Ultrasonography (Thyroid Echogram, Thyroid Ultrasonogram)
- Tilt Table Test (Head-Up Tilt Table Test)
- Tolbutamide Tolerance Test (TTT)
- Tomography of Paranasal Sinuses
- Tonometry Test for Glaucoma
- Total Body Scan - see Bone Scan
- Tourniquet Test - see Capillary Fragility Test
- Toxoplasmosis Skin Test
- Tracer - see Glucose Monitoring Machines
- Transcranial Cerebral Oximetry - see Transcranial Near-Infrared Spectroscopy
- Transcranial Doppler Ultrasonography - see Doppler Ultrasonographic Flow Studies
- Transesophageal Echocardiogram - see Transesophageal Ultrasonography
- Transcranial Near-Infrared Spectroscopy (NIRS, Cerebral Near-Infrared Spectroscopy, Transcranial Cerebral Oximetry)
- Transesophageal Ultrasonography (Transesophageal Echocardiogram, TEE)
- Transfer Factor - see Diffusing Capacity for Carbon Monoxide
- Transfer Function Index - see Pulse Volume Recorder Testing of Peripheral Vasculature
- Transfusion Reaction Work-Up
- Transrectal Ultrasonography - see Prostate Ultrasonography
- Trichinosis Skin Test
- TRUS - see Prostate Ultrasonography
- T-Scan - see Mammography
- TST - see Mantoux Skin Test
- T-Tube Cholangiography, Postoperative
- Tuberculin Skin Test - see Mantoux Skin Test
- Tularemia Skin Test
- Tuning Fork Test, of Weber, Rinne, and Schwabach Tests
- Tuttle Test - see Esophageal Acidity Test
- UBT - see Urea Breath Test
- UFP - see Papanicolaou Smear, Ultrafast and Fine-Needle Aspiration
- UGI - see Upper Gastrointestinal Series
- Ultra - see Glucose Monitoring Machines
- Ultrafast Computed Tomography - see Computed Tomography of the Body
- Ultrasonography, Abdomen - see Abdominal Aorta Ultrasonography; Gallbladder and Biliary System Ultrasonography; Liver Ultrasonography; Obstetric Ultrasonography; Pancreas Ultrasonography; Spleen Ultrasonography
- Ultrasonography, Abdominal Aorta - see Abdominal Aorta Ultrasonography
- Ultrasonography, Bone - see Bone Ultrasonometry
- Ultrasonography, Brain - see Brain Ultrasonography
- Ultrasonography, Breast - see Breast Ultrasonography
- Ultrasonography, Carotid Artery - see Doppler Ultrasonic Flow Studies
- Ultrasonography, Color Duplex - see Color Duplex Ultrasonography
- Ultrasonography, Compression - see Compression Ultrasonography
- Ultrasonography, Coronary - see Coronary Intravascular Ultrasonography
- Ultrasonography, Endoscopic - see Endoscopic Ultrasonography; Transesophageal Ultrasonography
- Ultrasonography, Eye and Orbit - see Eye and Orbit Ultrasonography
- Ultrasonography, Gallbladder - see Gallbladder and Biliary System Ultrasonography
- Ultrasonography, Gynecologic - see Gynecologic Ultrasonography
- Ultrasonography, Heart - see Echocardiogram
- Ultrasonography, Kidney - see Kidney Ultrasonography
- Ultrasonography, Liver - see Liver Ultrasonography
- Ultrasonography, Obstetric - see Obstetric Ultrasonography
- Ultrasonography, Pancreas - see Pancreas Ultrasonography
- Ultrasonography, Pelvic - see Gynecologic Ultrasonography
- Ultrasonography, Prostate - see Prostate Ultrasonography
- Ultrasonography, Scrotum - see Scrotum and Testicular Ultrasonography
- Ultrasonography, Spleen - see Spleen Ultrasonography
- Ultrasonography, Thyroid - see Thyroid Ultrasonography
- Ultrasonography, Transcranial - see Doppler Ultrasonographic Flow Studies
- Ultrasonography, Transesophageal - see Transesophageal Ultrasonography
- Ultrasonography, Transrectal - see Prostate Ultrasonography
- Ultrasonography, Transvaginal - see Gynecologic Ultrasonography; Obstetric Ultrasonography; Urinary Bladder Ultrasonography
- Ultrasonography, Urinary Bladder - see Urinary Bladder Ultrasonography
- Upper GI Endoscopy - see Esophagogastroduodenoscopy
- Upper Gastrointestinal (UGI) Series
- Urea Breath Test (UBT, 13C-UBT, 14C-UBT)
- Urethrography, Retrograde
- Urinary Bladder Ultrasonography (Urinary Bladder Echogram, Urinary Bladder Ultrasonogram)
- Urine Cytology - see Cytologic Study of Urine
- Uroflowmetry
- Urography, Excretory - see Intravenous Pyelography
- Uterosalpingography - see Hysterosalpingography
- Uterotubal Insufflation - see Rubin's Test
- Vaginal Aspirate for Motile/Nonmotile Sperm - see Sims-Huhner Test
- Vectorcardiogram
- Venography (Phlebography)
- Ventilation/Perfusion Lung Scan - see Lung Scan, Perfusion and Ventilation
- Ventriculography
- Vestibular Evoked Myogenic Potential - see Audiometry Test
- Video-Assisted Mediastinoscopy - see Mediastinoscopy
- Visual Acuity Tests
- Visual Evoked Potential
- Voiding Cystourethrography - see Cystourethrography, Voiding
- V/Q Scan - see Lung Scan, Perfusion and Ventilation
- Vulva Smear - see Pap Smear
- Washing Cytology - see Bronchial Washing, Specimen
- Water Loading Test
- Weber Test - see Tuning Fork Test of Weber, Rinne, and Schwabach Tests
- Western Blot - see Acquired Immune Deficiency Syndrome Evaluation Battery
- Whole-Body Scan - see Bone Scan
- Xeromammogram - see Mammography
- X-Ray - see Radiographic and Radiography, various types of radiography
- Xylose - see d-Xylose Absorption Test
- d-Xylose Absorption Test (Xylose Tolerance Test)
- Xylose Tolerance Test - see d-Xylose Absorption Test
