Alpha-fetoprotein Blood Test
Alpha-fetoprotein (AFP) is a glycoprotein produced by fetal tissue and tumors that differentiate from midline embryonic structures. During fetal development, AFP levels in serum and amniotic fluid rise; because this...
Category: Medical Laboratory & Diagnostic Test
Arterial Blood Gas Analysis
Arterial blood gas (ABG) analysis evaluates gas exchange in the lungs by measuring the partial pressures of oxygen (PaO2) and carbon dioxide (Paco2) as well as the pH of an...
Arthrography
Arthrography allows radiographic examination of a joint after injection of a radioopaque dye, air, or both (double-contrast arthrogram) to outline soft tissue structures and the contour of the joint. The...
Magnetic Resonance Imaging of Bone and Soft Tissue (MRI)
A noninvasive technique, skeletal magnetic resonance imaging (MRI) produces clear and sensitive images of bone and soft tissue. The scan provides superior contrast of body tissues and allows imaging of...
Colonoscopy Procedure
Colonoscopy uses a flexible fiber-optic video endoscope to permit visual examination of the lining of the large intestine. It’s indicated for patients with history of constipation or diarrhea, persistent rectal bleeding, and lower abdominal pain when the results of proctosigmoidoscopy and a barium enema test are negative or inconclusive.
Purpose
-To detect or evaluate inflammatory and ulcerative bowel disease.
-To locate the origin of lower gastro intestinal bleeding.
-To aid in the diagnosis of colonic strictures and benign or malignant lesions.
– To evaluate the colon postoperatively for recurrence of polyps and malignant lesions.
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