Valsts: Austrālija
Valoda: angļu
Klimata pārmaiņas: Department of Health (Therapeutic Goods Administration)
Urea (14C); Urea [14C]
Tri-Med Distributors Pty Ltd
Medicine Listed
7. HOW SAFE IS THE PYTEST? Natural 14 C is found in every living thing on earth, including our own bodies. This is what gives rise to “natural environmental radiation”. A single PYtest gives a tiny amount of 14 C that is equal to 3 microsieverts, which is half the environmental dose of radiation that we receive in a normal day. Compared to the PYtest, a mammogram gives a radiation dose of 940 microsieverts and a chest X-ray gives 32 microsieverts. So, the PYtest is 10 times safer than a chest X-ray and 300 times safer than a mammogram. Every person living anywhere in the world is subject to a small inevitable dose of unavoidable (environ- mental) radiation. Just like we measure the length of an object in centimeters or millimeters , radiation doses are measured in microseieverts. Every person living in Australia gets a daily dose of 6 microsieverts natural (background) environmental radiation during 24hrs. Although the PYtest contains a tiny amount of radiation it is less than the unavoidable radiation an average person receives every day from natural environmental (or “background”) radiation. 8. CAN ONE OVERDOSE WITH THE PYTEST CAPSULE? When the test is performed according to the set instructions, an overdose is not likely. 10. HOW DO I GET FURTHER INFORMATION ? A prescription is not required for the PYtest. Ask your doctor if you want to know more information about the PYtest or contact TRI-MED. The PYtest is distributed in Australia by TRI-MED Distributors Pty Ltd. This Information Leaflet was prepared on 26 October 2000. THE UREA BREATH TEST FOR DETECTING HELICOBACTER PYLORI AA26 October 2000 Izlasiet visu dokumentu
PRODUCT INFORMATION : MATERIALS NEEDED BUT NOT PROVIDED: 1.Stopwatch/Timer capable of timing an interval up to 10 minutes. 2.Water (40mL) DOSAGE: One PYtest capsule. PROCEDURAL NOTES: • Inform the patient to fast for 6 hours prior to the test. • The patient should not have taken antibiotics and bismuth containing products for 1 month, proton pump inhibitors for 1 week and sucralfate for 2 week prior to the test. • Have patient sitting at rest while doing the test. • The capsule should not be handled directly as this may interfere with the test result. • To avoid contamination by bacteria in the mouth, the capsule should be swallowed intact. Do not chew capsule. STEP BY STEP PROCEDURE FOR BALLOON: TABLE 4: BREATH SAMPLE COLLECTION BY BALLOON PRECAUTIONS FOR USE Because of the very low radioactivity of individual PYtest capsules, no special precautions are needed for the disposal of small numbers of capsules. Where it is necessary to dispose large quantities of capsules, the disposal of the waste should be carried out in accordance with the NHMRC Code of Practice for the Disposal of Radioactive Waste by Users, (1985). QUALITY CONTROL A minimum of 1 mmol of CO 2 is required to perform analysis of a breath sample. The amount of breath required to provide 1 mmol of CO 2 varies depending on the amount of CO 2 the patient is producing. Since a full balloon typically contains at least 1 mmol of CO 2 , the balloon should be completely filled. RESULTS INTERPRETATION OF RESULTS (10 MINUTE SAMPLE) <50 DPM Negative for H.pylori 50-199 DPM Indeterminate for H.pylori >200 DPM Positive for H.pylori (DPM = disintegrations per minute) The indeterminate result should be evaluated by repeating the PYtest or using an alternative diagnostic method. If repeat breath testing Izlasiet visu dokumentu