Polarized Light Microscopy

Polarized light microscopy is an auxiliary test for checking the normal function of the urethra. A microscope and an analyzer for inserting a polarizer and an analyzer for examining the anisotropy and birefringence of the sample are inserted in the optical system of the optical microscope. Both the polarizer and the analyzer are made of a polarizing prism or a polarizing plate of a nicol prism. The former is mounted between the light source and the sample, and the latter is mounted between the objective lens and the eyepiece or over the eyepiece. The use of polarized light microscopy can detect the "culprit" of gout - urate crystals. Through this examination, the corresponding symptoms can be judged. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: not fasting Tips: Maintain a normal diet and sleep. Normal value No urate crystals were detected under a polarized light microscope. Clinical significance Abnormal results: The cause of gout is that urate crystals are deposited in the joints, stimulating the tissue to cause inflammation, which causes the onset of acute gouty arthritis. If the patient suffers from gout, even in the absence of symptoms, it can be in the joint fluid. The sodium urate crystal was found to confirm the gout, which greatly reduced the rate of misdiagnosis and missed diagnosis of gout patients, and won time for treatment. People who need to be examined: routine urine examination, patients with kidney disease and patients with gout. Precautions Taboo before the test: maintain a normal diet and sleep. Requirements for inspection: According to the doctor's instructions, take samples and actively cooperate with the doctor. The doctor should carefully observe the field of view under the microscope. Inspection process Under polarized light microscopy, sodium urate crystals causing gout can be observed as fine needles or blunt rods; and calcium pyrophosphate crystals causing pseudogout are rod-shaped or rhomboid, shorter than urate crystals, and birefringent light intensity Weak; hydroxyapatite crystals are spherical or copper-like polymers; cholesterol crystals are disc-shaped with "V"-shaped cuts on the corners; and calcium oxalate crystals are square, double-cone or rod-shaped, similar to envelopes. . Not suitable for the crowd Inappropriate people: Generally, there is no suitable for the crowd. Adverse reactions and risks No related complications or hazards.

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