Disease A-Z Library
24-hour urinary aldosterone excretion test
The 24-hour urinary aldosterone excretion test measures the amount of aldosterone removed in the urine in a day. Aldosterone can also be measured with a blood test....
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Rx Lab Test (A – Z)
Browse plain-English disease and condition guides, including symptoms, causes, diagnosis, treatment options, prevention, and when to seek medical care.
972 articlesUpdated medical education library
Diseases A-Z
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A
- A1C Test – Indications, Procedures, Results
- Abdominal CT scan – Uses, Indications, Procedure, Result
- Abdominal Magnetic Resonance Imaging Scan
- Abdominal Sonogram – Indications, Procedures, Results
- Abdominal Tap – Indications, Procedure, Results
- Abdominal Ultrasound – Indications, Procedure, Result
- Abdominal Ultrasound – Uses, Indications, Procedure, Result
- Abdominal Wall Fat Pad Biopsy – Indications, Procedure
- Abdominal Wall Fat Pad Biopsy – Indications, Procedure, Result
- Abdominal x-Ray – Indications, Procedures, Results
- Abdominal x-ray – Uses, Indications, Procedure, Result
- Abdominal x-ray – Uses, Indications, Procedure, Result
- ABO Blood Typing – Indications, Procedures, Results
- Absolute Eosinophil Count Test – Indications, Procedure, Result
- Absolute Eosinophil Count Test – Indications, Procedure, Result
- ACE Test – Indications, Procedure, Results
- Acetylcholine Receptor Antibody – Indications, Procedure, Results
- Acetylcholine Receptor Antibody Test – Indications, Procedure, Results
- Acetylcholine Receptor Antibody Test – Indications, Procedure, Results
- Achilles Tendon Rupture; Causes, Symptoms, Test, Treatment
- Acid Loading Test – Indications, Procedure, Results
- Acid Mucopolysaccharides Test – Indications, Procedure, Results
- Acid-fast Stain Test – Indications, Procedure, Results
- ACTH Blood Test – Indications, Procedure, Results
- ACTH Stimulation Test – Indications, Procedure, Results
- ACTH Stimulation Test – Indications, Procedures, Results
- Adenosine stress test; Regadenoson stress test
- Alanine transaminase (ALT) blood test
- Alanine transaminase (ALT) blood test
- Albumin Blood (serum) Test – Indications, Procedure, Results
- Aldolase Blood Test – Indications, Procedure, Results
- Aldosterone Blood Test – Indications, Procedure, Results
- Alkaline phosphatase (ALP) – Indications, Procedure, Results
- Alkaline phosphatase (ALP) Test – Indications, Procedure, Results
- Allergy testing For skin – Indications, Procedure, Results
- ALP Isoenzyme Test – Indications, Procedure, Results
- ALP isoenzyme test – Indications, Procedure, Results
- Alpha Fetoprotein – Indications, Procedure, Results
- Alpha Fetoprotein – Indications, Procedures, Results
- Alpha Fetoprotein Test – Indications, Procedure, Results
- Alpha-1 Antitrypsin Blood Test – Indications, Procedure, Results
- Aminoaciduria – Indications, Procedure, Results
- Aminoaciduria Test – Indications, Procedure, Results
- Aminoaciduria Test – Indications, Procedure, Result
- Aminoaciduria Test – Indications, Procedure, Results
- Ammonia Blood Test – Indications, Procedure, Results
- Ammonia Blood Test – Indications, Procedure, Results
- Ammonia Blood Test – Indications, Procedure, Results
- Ammonia Test – Indications, Procedure, Results
- Amylase Blood Test – Indications, Procedure, Results
- Amylase urine Test – Indications, Procedure, Results
- An abdominal Tap – Uses, Indications, Procedure, Result
- Angina Pectoris; Causes, Symptoms, Diagnosis, Treatment
- Ankle Sprain; Types, Causes, Symptoms, Diagnosis, Treatment
- Anoscopy – Indications, Procedure, Results
- Anoscopy – Indications, Procedures, Results
- Anthrax Blood Test – Indications, Procedures, Results
- Anti-DNase B blood Test – Indications, Procedure, Results
- Anti-Gastric Parietal Cell Antibody – Indications, Procedures
- Anti-glomerular basement membrane blood test
- Anti-insulin antibody test – Indications, Procedure, Results
- Anti-P Antibody Test – Indications, Procedures, Results
- Anti-Smooth Muscle Antibody – Indications, Procedure, Result
- Antibiotic Sensitivity Analysis – Indications, Procedures, Results
- Antibody titer blood test – Indications, Procedure, Results
- Antibody Titer Blood Test – Indications, Procedures, Results
- Anticoagulant-Prothrombin Time – Indications, Procedures, Results
- Antidiuretic hormone blood test – Indications, Procedure, Result
- Antimitochondrial Antibody Test – Indications, Procedure, Results
- Antiparietal cell antibody test – Indications, Procedure, Results
- Antiparietal cell antibody test – Indications, Procedure, Result
- Antiparietal Cell Antibody Test – Indications, Procedures, Results
- Antistreptolysin O titer – Indications, Procedure, Results
- Antithrombin III Blood Test – Indications, Procedures, Results
- Antithrombin III Blood Test – Indications, Procedures, Results
- Antithyroglobulin antibody – Indications, Procedure, Result
- Antithyroglobulin Antibody – Indications, Procedures, Results
- Antithyroglobulin Antibody – Indications, Procedures, Results
- Antithyroglobulin antibody Test – Indications, Procedure, Results
- Antithyroid Microsomal Antibody – Indications, Procedure, Results
- Antithyroid microsomal antibody – Indications, Procedure, Result
- Antithyroid Microsomal Antibody – Indications, Procedures, Results
- Aortic Angiography Test – Indications, Procedure, Result
- Apgar Score Test – Indications, Procedures, Results
- Apolipoprotein CII – Indications, Procedures, Results
- Apolipoprotein Test – Indications, Procedure, Results
- Are you worried about your panis black colour, small size? Lets go for solution
- Arm CT scan – Indications, Procedure, Result
- Arm MRI scan – Indications, Procedure, Results
- Arterial Blood Gas Analysis – Indications, Procedures, Results
- Arterial Insufficiency Test of the Legs
- Arterial Stick – Indications, Procedure, Results
- Arteriography of the Extremity – Indications, Procedures, Results
- Aspergillosis precipitin Test – Indications, Procedure, Results
- Audiometry Exam Tests – Indications, Procedure, Results
- Autoimmune Liver Disease Panel – Indications, Procedure, Results
B
- B and T cell Screen – Indications, Procedure, Results
- B-cell Leukemia/Lymphoma Panel Test
- B-cell Leukemia/Lymphoma Panel Test – Indications, Procedures
- BAER – brainstem auditory evoked response
- BAER – brainstem auditory evoked response
- Barium Enema Test – Indications, Procedure, Results
- Barium Enteroclysis/MR Enteroclysis – Indications, Procedures, Results
- Bernstein Test – Indications, Procedure, Results
- Bernstein Test – Indications, Procedure, Results
- Beta-Carotene Blood Test – Indications, Procedure, Results
- Beta-Carotene Blood Test – Indications, Procedure, Results
- Bile Culture Test – Indications, Procedure, Results
- Biliary Tract Biopsy – Indications, Procedure, Results
- Biliary Tract Biopsy – Indications, Procedure, Results
- Bilirubin Blood Test – Indications, Procedure, Results
- Bilirubin Blood Test – Indications, Procedures, Results
- Biological Terrain Assessment (BTA)
- Biomicroscopy Test – Indications, Procedures, Results
- Bitewings – Indications, Procedures, Results
- Bladder Biopsy – Indications, Procedure, Results
- Bleeding Time – Indications, Contraindications
- Blood Cholesterol Test – Indications, Contraindications
- Blood Differential Test – Indications, Procedure, Results
- Blood Gases – Indications, Procedure, Results
- Blood Gases Test – Indications, Procedure, Result
- Blood Phosphorus Test – Indications, Procedures, Results
- Blood Pressure Measurement
- Blood Pressure Measurement – Indications, Procedures, Results
- Blood Sugar Test – Indications, Procedures, Results
- Blood Transfusions – Indications, Contraindications
- Blood typing – Uses, Indications, Procedure, Result
- Bone densitometry; DEXA scan – Indications, Procedures, Results
- Bone Lesion Biopsy – Indications, Procedure, Results
- Bone Lesion Biopsy – Indications, Procedure, Results
- Bone Lesion Biopsy – Indications, Procedure, Results
- Bone marrow aspiration – Indications, Procedure, Results
- Bone Marrow Aspiration – Indications, Procedures, Results
- Bone Marrow Aspiration Test – Indications, Procedure, Results
- Bone Marrow Aspiration Test – Indications, Procedures, Results
- Bone Marrow Biopsy – Indications, Procedure, Results
- Bone Marrow Biopsy – Indications, Procedure, Results
- Bone Marrow Culture – Indications, Procedure, Results
- Bone Mineral Density Test – Indications, Procedure, Results
- Bone Mineral Density Test – Indications, Procedures, Results
- Bone Scan – Indications, Procedure, Results
- Bone Scan – Indications, Procedures, Results
- Brain Natriuretic Peptide Test – Indications, Procedure, Results
- Brain Positron Emission Tomography (PET)
- Brainstem Auditory Evoked Response (BAER)
- Breast Biopsy Stereotactic – Indications, Procedures, Results
- Breast Biopsy Ultrasound – Indications, Procedures, Results
- Breast Biopsy Ultrasound Test – Indications, Procedure, Results
- Breast Leakage Prolactin Blood Test – Indications, Procedures
- Breath Alcohol Test – Indications, Procedure, Results
- Bronchoscopy – Indications, Procedure, Results
- Brown-Séquard Syndrome; Cause, Symptom, Treatment
- Buccal Smear Test – Indications, Procedures, Results
- BUN Blood Test – Indications, Procedure, Results
C
- C-Reactive Protein – Indications, Procedures, Results
- C1 Esterase Inhibitor Test – Indications, Procedure, Results
- CA-125 Blood Test – Indications, Procedure, Results
- Ca+2; Serum Calcium Test; Ca++Test
- Ca+2; Serum calcium; Ca++ Test – Indications, Procedures, Results
- Calcitonin Blood Test – Indications, Procedure, Results
- Calcium Blood Test – Indications, Procedure, Results
- Calcium Blood Test – Indications, Procedure, Results
- Calcium Blood Test – Indications, Procedures, Results
- Calcium Ionized Test – Indications, Procedures, Results
- Caloric Stimulation – Indications, Procedure, Results
- Caloric stimulation Test – Indications, Procedure, Results
- Campylobacter Serology Test – Indications, Procedure, Results
- Capillary Nail Refill Test – Indications, Procedures, Results
- Capillary Sample Test – Indications, Procedure, Results
- Capillary sample Test – Indications, Procedures, Results
- Carcinoma in Situ-Cone Biopsy – Indications, Procedures, Results
- Cardiac Catheterization – Indications, Procedures, Results
- Carotid Artery Duplex Test – Indications, Procedures, Results
- Carpal Tunnel Biopsy – Indications, Procedure, Results
- CAT Scan (Computed Tomography) – Indications, Procedure
- Catecholamine Blood Test – Indications, Procedures, Results
- Catecholamine Blood Test – Indications, Procedure, Results
- Catecholamine Blood Test – Indications, Procedure, Results
- Catecholamines Urine Test – Indications, Procedure, Results
- CEA Blood Test – Indications, Procedure, Results
- Cerebral Angiography – Indications, Procedure, Results
- Cerebral Angiography – Indications, Procedures, Results
- Cerebral spinal fluid (CSF) collection Test
- Cerebral spinal fluid (CSF) collection Test
- Cerebral Spinal Fluid (CSF) Test
- Cervical Intraepithelial Neoplasia Test
- Cervical MRI – Indications, Procedure, Results
- Cervical Punch Biopsy Test – Indications, Procedures, Results
- Cervical Spine CT Scan – Indications, Procedure, Results
- Cervical Spine CT Scan – Indications, Procedures, Results
- Cervical Spondylosis – Causes, Symptom, Diagnosis, Treatment
- Chest Examination – Indications, Procedure, Results
- Chest MRI – Indications, Procedures, Results
- Chest PET Scan – Indications, Procedures, Results
- Chikungunya Fever; Causes, Symptoms, Diagnosis, Treatment
- Chloride Test – Indications, Procedure, Results
- Cholesterol Test – Indications, Contraindications
- Chromium Blood Test – Indications, Procedure, Results
- Citric Acid Urine Test – Indications, Procedure, Results
- Clean Catch Urine Sample – Indications, Procedure, Results
- Clinical Examination of Lower Limb Deformity
- CMV Serology Test – Indications, Procedure, Results
- CO2 Blood Test – Indications, Procedure, Results
- CO2 Blood Test – Indications, Procedure, Results
- Coccydynia; Causes, Symptoms, Diagnosis, Treatment
- Cold Allergy – Defination, Causes, Symptoms, Diagnosis, Treatment
- Cold Knife Cone Biopsy – Indications, Procedure, Results
- Cold Knife Cone Biopsy Test – Indications, Procedure, Results
- Colon Cancer Sigmoidoscopy – Indications, Procedures, Results
- Colonoscopy – Indications, Procedures, Results
- Color Vision Test – Indications, Procedure, Results
- Color Vision Test – Indications, Procedures, Results
- Colostomy – Indications, Contraindications
- Colposcopy – Indications, Procedure, Results
- Colposcopy Directed Biopsy – Indications, Procedure, Results
- Complement C3 Test – Indications, Procedure, Results
- Complement component 4 – Indications, Procedure, Results
- Complement Test – Indications, Procedures, Results
- Comprehensive and Basic Metabolic Panel Test
- Computed Tomography angiography of Abdomen and pelvis
- Contrast CT
- Contrast-Enhanced Computed Tomography (CECT)
- Coombs Test – Indications, Procedures, Results
- Coombs Test – Indications, Procedures, Results
- Coronary Angiography – Indications, Procedure, Results
- Coronary Angiography – Indications, Procedures, Results
- Cortisol Hormon Test – Indications, Procedures, Results
- CPK Isoenzymes Test – Indications, Procedure, Results
- CPK Isoenzymes Test – Indications, Procedures, Results
- Creatine Phosphokinase Test – Indications, Procedure, Results
- Creatine Phosphokinase Test – Indications, Procedures, Results
- Creatine Test – Indications, Procedures, Results
- Creatinine Blood Test – Indications, Procedures, Results
- Crohn Disease Test – Indications, Procedures, Results
- Cross-matching; Rh Typing; ABO Blood Typing
- CRP; Procedure, Normal Value ,Elevating Causes, Treatment
- Cryoglobulins Test – Indications, Procedures, Results
- CSF Analysis Test – Indications, Procedure, Results
- CSF Test – Indications, Procedures, Results
- CT angiography – head and neck
- CT Angiography – head and neck
- CT Angiography Chest – Indications, Procedure, Results
- CT Angiography Chest – Indications, Procedures, Results
- CT angiography Test – Indications, Procedures, Results
- CT Enteroclysis – Indications, Procedures, Results
- CT Small Bowel Enema Enteroclysis – Indications, Procedures, Results
- Culture Blood – Indications, Procedures, Results
- Cystometrogram – Indications, Procedure, Results
- Cytology exam of pleural fluid – Indications, Procedures, Results
D
- D-dimer Test – Indications, Procedure, Results
- D-Dimer Test – Indications, Procedure, Results
- D-xylose absorption – Indications, Procedures, Results
- D-xylose/Glucose Absorption Test – Indications, Procedures, Results
- Debridement – Indications, Contraindications
- Dehydroepiandrosterone/DHEA Sulfate Test
- Delta-ALA Urine Test – Indications, Procedures, Results
- Dental Plaque Test – Indications, Procedures, Results
- Dental x-rays – Indications, Procedure, Results
- Dental x-rays – Indications, Procedures, Results
- Dexamethasone Suppression Test – Indications, Procedures, Results
- Dexamethasone Suppression Test – Indications, Procedure, Results
- Dexamethasone Suppression Test – Indications, Procedures
- Diabetes Test – Indications, Procedures, Results
- Digital Rectal Exam – Indications, Procedures, Results
- Donath-Landsteiner Test – Indications, Procedures, Results
- Doppler Ultrasound Exam of an Arm or Leg
- Doppler ultrasound exam of an arm or leg
- Doppler ultrasound exam of an arm or leg
- Dorsal Penile Nerve Block – Indications, Contraindication
- Double-Balloon Enteroscopy – Indications, Procedures, Results
- Dry Eye Test; Basal Secretion Test – Indications, Procedures
- Dual- Energy X-ray Absorptiometry (DEXA)
- Dual-energy x-ray Absorptiometry – Indications, Procedures
- Duplex Ultrasound – Indications, Procedures, Results
E
- Ear Examination/ Otoscopy- Indications, Procedures, Results
- Echography – Eye and orbit ultrasound
- Echography – Indications, Procedures, Results
- EEG Test – Indications, Procedure, Results
- EGD – Indications, Procedures, Results
- Electrocardiogram – Indications, Procedures, Results
- Electrocardiogram – Indications, Contraindications
- Electroencephalogram (EEG) – Indications, Procedures, Results
- Electroencephalogram / Brain wave test
- Electromyography – Indications, Procedures, Results
- Electromyography – Indications, Procedures, Results
- Electronystagmography – Indications, Procedures, Results
- Electroretinography – Indications, Procedures, Results
- EMG; Types, Indications/Uses, Procedures, Results
- Endocervical Culture – Indications, Procedures, Results
- Endocervical Culture – Indications, Procedures, Results
- Endocervical Gram Stain – Indications, Procedures, Results
- Endometrial Biopsy – Indications, Procedure, Results
- Endometrial Biopsy – Indications, Procedures, Results
- Endoscopic Ultrasound – Indications, Procedures, Results
- Endotracheal Intubation – Indications, Procedures, Results
- Endotracheal Intubation – Indications, Procedures, Results
- Endotracheal intubation – Indications, Procedures, Results
Featured articles
Disease A-Z Library
24-Hour Urine Copper Test – Indications, Procedures, Results
Quantitative urinary copper The 24-hour urine copper test measures the amount of copper in a urine sample. How the Test is Performed A 24-hour urine sample...
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5-HIAA Urine Test – Indications, Procedures, Results
HIAA; 5-hydroxy indole acetic acid; Serotonin metabolite 5-Hydroxyindoleacetic acid (5-HIAA) is the main metabolite of serotonin. In the chemical analysis of urine samples, 5-HIAA is used to determine serotonin levels in the body.5-HIAA...
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A1C Test – Indications, Procedures, Results
HbA1C test; Glycated hemoglobin test; Glycohemoglobin test; Hemoglobin A1C; Diabetes – A1C; Diabetic – A1C A1C is a lab test that shows the average level of...
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Abdominal CT scan – Uses, Indications, Procedure, Result
An abdominal CT scan is an imaging method. This test uses x-rays to create cross-sectional pictures of the belly area. CT stands for computed tomography. How...
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Abdominal Magnetic Resonance Imaging Scan
An abdominal magnetic resonance imaging scan is an imaging test that uses powerful magnets and radio waves. The waves create pictures of the inside of the...
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Abdominal Sonogram – Indications, Procedures, Results
Abdominal sonogram; Right upper quadrant sonogram Abdominal ultrasound is a type of imaging test. It is used to look at organs in the abdomen, including the liver, gallbladder,...
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Abdominal Tap – Indications, Procedure, Results
Peritoneal tap; Paracentesis; Ascites – abdominal tap; Cirrhosis – abdominal tap; Malignant ascites – abdominal tap An abdominal tap is used to remove fluid from the...
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Abdominal Ultrasound – Indications, Procedure, Result
Abdominal ultrasound is a type of imaging test. It is used to look at organs in the abdomen, including the liver, gallbladder, spleen, pancreas, and kidneys. The blood...
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Abdominal Ultrasound – Uses, Indications, Procedure, Result
Abdominal ultrasound is a type of imaging test. It is used to look at organs in the abdomen, including the liver, gallbladder, spleen, pancreas, and kidneys. The blood...
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Abdominal Wall Fat Pad Biopsy – Indications, Procedure
An abdominal wall fat pad biopsy is the removal of a small part of the abdominal wall fat pad. How the Test is Performed Needle aspiration is the...
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Abdominal Wall Fat Pad Biopsy – Indications, Procedure, Result
An abdominal wall fat pad biopsy is the removal of a small part of the abdominal wall fat pad. How the Test is Performed Needle aspiration is the...
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Disease A-Z Library
Serum Protein Electrophoresis – Indications, Procedures, Results
Protein electrophoresis – serum Lipoprotein electrophoresis This lab test measures the types of protein in the fluid (serum) part of a blood sample. This fluid is...
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Protein C Blood Test – Indications, Procedures, Results
Protein C is a normal substance in the body that prevents blood clotting. A blood test can be done to see how much of this protein...
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Prostate-specific antigen (PSA) blood test
Prostate-specific antigen; Prostate cancer screening test; PSA Prostate-specific antigen (PSA) is a protein produced by prostate cells. The PSA test is done to help diagnose and...
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Fine Needle Biopsy of The Prostate – Indications, Procedures
Fine needle biopsy of the prostate; Core biopsy of the prostate; Targeted prostate biopsy; Prostate biopsy – transrectal ultrasound (TRUS); Stereotactic transperineal prostate biopsy (STPB) A...
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Prostate-specific antigen (PSA) blood test
Prostate-specific antigen; Prostate cancer screening test; PSA Prostate-specific antigen (PSA) is a protein produced by prostate cells. The PSA test is done to help diagnose and...
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Stereotactic Transperineal Prostate Biopsy (STPB)
Prostate gland biopsy; Transrectal prostate biopsy; Fine needle biopsy of the prostate; Core biopsy of the prostate; Targeted prostate biopsy; Prostate biopsy – transrectal ultrasound (TRUS);...
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Progesterone Test – Indications, Procedures, Results
17-hydroxyprogesterone; Progesterone – 17-OH 17-OH progesterone is a blood test that measures the amount of 17-OH progesterone. This is a hormone produced by the adrenal glands and sex...
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Colon Cancer Sigmoidoscopy – Indications, Procedures, Results
Colon cancer sigmoidoscopy; Colorectal sigmoidoscopy; Rectal sigmoidoscopy; Gastrointestinal bleeding – sigmoidoscopy; Rectal bleeding – sigmoidoscopy; Melena – sigmoidoscopy; Blood in stool – sigmoidoscopy; Polyps – sigmoidoscopy...
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Anticoagulant-Prothrombin Time – Indications, Procedures, Results
Anticoagulant-prothrombin time; Clotting time: protime; INR; International normalized ratio Prothrombin time (PT) is a blood test that measures the time it takes for the liquid portion...
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Breast Leakage Prolactin Blood Test – Indications, Procedures
PRL; Galactorrhea – prolactin test; Infertility – prolactin test; Amenorrhea – prolactin test; Breast leakage – prolactin test; Prolactinoma – prolactin test; Pituitary tumor – prolactin...
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Human Chorionic Gonadotrophin – Indications, Procedures, Results
The human chorionic gonadotropin (hCG) test is done to measure the amount of the hormone hCG in blood or urine to see if a woman is pregnant....
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Carcinoma in Situ-Cone Biopsy – Indications, Procedures, Results
Carcinoma in situ-cone biopsy; CIS – cone biopsy; ASCUS – cone biopsy; Atypical glandular cells – cone biopsy; AGUS – cone biopsy; Atypical squamous cells –...
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Plasma Renin Test – Indications, Procedures, Results
Random plasma renin; PRA The renin test measures the level of renin in blood. How the Test is Performed A blood sample is needed . How to Prepare...
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Tuberculin Skin Test – Indications, Procedures, Results
PPD skin test Purified protein derivative standard; TB skin test; Tuberculin skin test; Mantoux test The PPD skin test is a method used to diagnose silent...
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Urine Potassium Test – Indications, Procedures, Results
Potassium urine test Urine potassium The potassium urine test measures the amount of potassium in a certain amount of urine. How the Test is Performed After...
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K+, Hypokalemia Test – Indications, Procedures, Results
Hypokalemia test; K+ This test measures the amount of potassium in the fluid portion (serum) of the blood. Potassium (K+) helps nerves and muscles communicate. It...
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Potassium hydroxide examination of skin lesion
Skin lesion KOH exam Potassium hydroxide examination of skin lesion The skin lesion KOH exam is a test to diagnose a fungal infection of the skin . How...
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PET scan – Indications, Procedures, Results
Positron emission tomography; Tumor imaging – PET; PET/CT A positron emission tomography scan is a type of imaging test. It uses a radioactive substance called a...
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Urine Uroporphyrin Test – Indications, Procedures, Results
Urine uroporphyrin; Urine coproporphyrin Porphyrins are natural chemicals in the body that help form many important substances in the body. One of these is hemoglobin, the...
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Serum Porphyrins Test – Indications, Procedures, Results
Protoporphyrin levels; Porphyrins — total; Coproporphyrin levels; PROTO test Porphyrins help form many important substances in the body. One of these is hemoglobin, the protein in...
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