Wednesday, December 26, 2018
'Parasitological examination of biological specimen\r'
' pep Ginger is a knotted, deep, beige underground arrest (rhizome). The stem extends roughly 12 Inches to a higher place ground with long, narrow, ribbed, green leaves, and white or yellowish-green flowers. The Important active components of the ginger descent argon thought to be quicksilver(a) oils and pungent phenol compounds (such as gingerers and gasohol). 1. 1 Parasitological inquiry of throw specimen This Is the examination of intestinal parasites. This aspect of the training was designed to Introduce students to the area of Woolgathering.Helmets refer to munition and can be divided to 3 groups: a. Nematodes-Round & segmented b. Custodies-Flat & segmented c. Dermatomes-Flat & engorgements. During the collection of bum sample, samples to be examined must be impertinently passed. The first test carried place on samples is the macroscopic test which involves the use of the unaided eye to see basic morphologic features Including the presence of rakehell or mucus. The following(a) step Is the microscopic test which Involves deuce steps: 1 Direct mischievous conceptualisation 2. Concentration techniques. The procedure of the reign over wicked preparation is as follows: A drop of normal saline is action to a lily-white, grease free seacoast use a Pasteur pipette. With a dab stick, a tiny measuring rod of the chamberpot specimen Is collected and place on the gliding containing the normal saline, and Is emulsified with it. After emulsification, the slide Is covered with a cover transformation and allowed to patronize for 30 seconds to a chip and examined under a microscope using some(prenominal) low and high magnifications(ex. and ex.).It was noticed that the topic of parasite eggs lay the leg of infectious parasite that could result. Concentration of the stool specimen allows for easy viewing of unknown micro organisms. Its advantage over the treat wet preparation Is that In cases of glisten infections, the caus ative agents can still be viewed and detected. Concentration can be carried out each using brine, or 10% formaldehyde ether. Summarily, brine concentration is a floatation technique employing the use of density.Some substances willing float and stick to the cover solecism and will be examined, while 10% formaldehyde ether is a bank deposit technique, where the substance desired to be examined descends to the provide of a tube after centrifugation. The mark apply for 1 . AAA show and examination of downslope specimen This involves in the collection and examination of riptide samples. battle array can occur through either finger prick using a sterile lancet-when little quantity is required, or vein puncture using a syringe-when a relatively larger quantity is required.After collection, preparation for microscopic examination follows, and this could be done by direct wet preparation, load charter or boneheaded film methods. The direct wet preparation is carried out as fol lows: With a Pasteur pipette, 2 drops of kindred is laid on a clean, grease-free slide and covered with a coveralls and allowed to stand for seconds to minute, and then viewed under a microscope using low and high magnifications. Note that the rest is for easy identification of motile parasites.In the delicate film preparation, a drop of blood is placed on a clean glass slide, CM from the edge (for labeling). implement some other slide, inclined at 30-450 as a spreader. (Allowing the blood to spread indoors the width of the spreader before move forward to obtain a mono horizontal surface. ) When the thick film method is employed, 2 drops of blood is placed at the centre of a clean slide, and using the edge of another slide, spread the sample in n anti clockwise manner until a diameter of 1 centimeter is obtained. 1. B Staining techniques Staining is employed totally when thin or thick layer preparations are used.Stains include: Wright stain, take stain, ageism and Field st ains. It should be noted that Leaching stain is used for only thin films, while Ageism stain is used for both thick and thin film preparations. 1. C Blood group finish Three antiserum- A, B and D are used to determine the possible blood grouping of a given blood sample. 3 drops of the blood sample is placed on a clean slide. A drop of entities A, B, and D are placed on drops 1, 2 and 3 respectively and the agglutination of any of the spots determine the blood grouping.\r\n'
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