Manual of basic techniques for a health laboratory - libdoc.who.int

4. Parasitology 137Fig. 4.59 Transferring the sample to theslideFig. 4.60 Making sure that the tape is firmly stuck tothe slideFig. 4.61 Alternative technique for collecting pinworm eggs from an infantFig. 4.62 Transferring thesample to a testtubeAlternative method1. If no cellophane tape is available, use a cotton wool swab to wipe around (butnot inside) the anus (Fig. 4.61).2. Dip the swab into a test-tube containing about 0.5ml (10 drops) of sodiumchloride solution. Rinse the swab well in the solution (Fig. 4.62).3. Draw up the liquid with a Pasteur pipette. Transfer it to a slide (Fig. 4.63), coverwith a coverslip and examine under the microscope as described in step 8 above.