Pathogen examination of skin and tissue parasites

The pathogen examination of skin and tissue parasites is to examine the skin for biopsy, sputum, Demodex, sputum and sputum, and to judge the disease and perform targeted treatment. Taboo before the inspection: Mainly diet attention, avoid spicy food such as hot and sour wine and high-protein food such as fish and eggs. It is best to avoid contact or use strong irritating chemicals in daily life. Basic Information Specialist classification: skin examination classification: pathogenic microbiological examination Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: A negative check value indicates that the body may be normal. Positive: Positive test values ​​are common in parasitic infections. Tips: Mainly for diet, avoid spicy foods such as hot and sour foods and high-protein foods such as fish and eggs. It is best to avoid contact or use strong irritating chemicals in daily life. Normal value The skin is non-destructive and lustrous, and there are no symptoms such as nodules or masses caused by worms, mites, Demodex, sputum and sputum, which are negative. Clinical significance Abnormal results Adult worms or larvae form nodules or masses under the skin of the human body, causing abnormalities such as finger joints, wrist flexors, small abdomen, breasts, armpits, lower abdomen, groin, and genitals. Head and palm are not easy to get involved. The skin lesions are mainly corn-sized papules or herpes. Demodex sputum caused by rosacea, acne, blepharitis, external auditory canal, papillitis, genital itching and other symptoms, fly maggots and sputum and other infections. Need to check the population of worms caused by nodules or masses, sputum, Demodex, sputum and sputum caused by various symptoms of infection. Positive results may be diseases: pediatric pigs with tsutsugamushi and cysticercosis, biliary ascariasis, hepatic hydatidosis, liver hydatidosis matters needing attention Taboo before the inspection: Mainly diet attention, avoid spicy food such as hot and sour wine and high-protein food such as fish and eggs. It is best to avoid contact or use strong irritating chemicals in daily life. Requirements for inspection: Actively cooperate with the doctor. Inspection process First, biopsy Skin Adults or larvae of various worms can form nodules or masses under the skin of human body. Such as Cysticercus cellulosae, Mann's schistosomiasis, Paragonimus sinensis and adult larvae of the genus Pseudomonas vaginalis, adult worms, worms, nematodes and microfilarias, spines Nematodes and larvae of the larvae of the larvae can form parasites or nodules under the skin of humans. D. elegans can irritate the skin to form blisters with female uterus that has broken the uterus and a large number of larvae. Surgical incision of the mass under sterile conditions, picking up the worm, directly observed or thinned after the preparation of the film, or take a liquid smear inside the lump to check for larvae. Muscle (1) Direct identification by anatomical mirror or microscope. If necessary, after tableting, fixing, dyeing, dehydration and transparent sealing, the insect species will be identified. (2) Remove the tissue block, place on the slide, add 1 drop of 50% glycerol alcohol, cover with another slide, press firmly, and fix the ends of the slide with rubber band, observe under low magnification. The patient's leftover meat should also be microscopically examined or used as an animal to aid diagnosis. Second, 疥螨 1. Needle picking method: directly observe the lesion in the binocular anatomical mirror, and find the contour of the tunnel and its blind end, that is, picking up the worm with a sterile needle tip and placing it on a slide with paraffin oil. Identification under the microscope. The positive rate can be as high as 95% or more. 2. Scrape method: choose a new, unscratched and no-crusted pimples, use a sterile surgical blade to pour a small amount of sterile paraffin oil on the surface, and scrape the number to a small amount of blood in the oil droplets. degree. Take the stratum corneum part of the top of the pimples. Even scrape 6 to 7 papules, move the scrapings into the paraffin oil drops on the slides, and cover the slides for microscopy. Third, Demodex 1. Extrusion smear method. 2. Transparent adhesive paper sticking method Four, maggots and cockroaches 1. Fly maggots: Remove the maggots from the wound surface or skin tissue, soak them in 10% NaOH solution for 4-8 hours, and wash them with water several times for microscopic examination. 2.虱 (1) Body sputum: It is often found in the joints with the armpits, the belts and the collars of the sputum or sputum eggs. According to the adult worms and eggs at the seams, the body rickets can be diagnosed. (2) Head lice: The efficacy should be followed up within two weeks after administration. Suspicious specimens obtained from the scalp and hair should be further diagnosed by microscopy, distinguishing the empty egg shell and the periorbital horn sleeve, which is loosely attached to the hair rod and can move along the hair rod. (3) shame and phlegm: in addition to the parasitic genitals, it can also be found on the trunk, arms, legs, armpits, and beards and eyelashes. Eyelash parasites are more common in children, and are also common in the scalp, especially on the scalp. It is elderly and babies with sparse hair. Not suitable for the crowd Patients who have taken anti-parasitic drugs and other drugs may be affected by the results of the test, and patients with a history of medications of the above drugs are prohibited. Adverse reactions and risks Risk of infection: If you use a device that is unclean and has a biopsy, there is a risk of infection.