tag:blogger.com,1999:blog-4747662821214055092.post38626222218563182..comments2023-11-03T02:46:12.449-07:00Comments on ALsubs: HaematologyALsubshttp://www.blogger.com/profile/08726497773853698048noreply@blogger.comBlogger15125tag:blogger.com,1999:blog-4747662821214055092.post-6275351250294115792007-10-12T20:48:00.000-07:002007-10-12T20:48:00.000-07:00Hey June, I finally got the answer for ur qn. ethy...Hey June, I finally got the answer for ur qn. ethyl alcohol is the used as the solvent for hydrogen peroxide.<BR/><BR/>Shu HuiALsubshttps://www.blogger.com/profile/08726497773853698048noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-3802884307133745702007-10-12T08:31:00.000-07:002007-10-12T08:31:00.000-07:00Hey ShuhuiSo the test card contains the guaiac pap...Hey Shuhui<BR/><BR/>So the test card contains the guaiac paper which can be accessed using from the back. The kit my lab uses (OC-light) requires the guaiac to be inserted.<BR/><BR/>Thanks for clearing that up. <BR/><BR/>AzharJ.A.M.M.Y.Shttps://www.blogger.com/profile/17180949601509896566noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-90097824124216362532007-10-12T08:24:00.000-07:002007-10-12T08:24:00.000-07:00This comment has been removed by the author.J.A.M.M.Y.Shttps://www.blogger.com/profile/17180949601509896566noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-85385518548005035992007-10-07T01:04:00.000-07:002007-10-07T01:04:00.000-07:00Hello Chaur lee, Funny ah u...ok. here’s your ans....Hello Chaur lee, <BR/>Funny ah u...ok. here’s your ans. Red meat contains blood that may be mistaken for human blood and NSAIDs can cause gastrointestinal bleeding. Hence, both should be avoided during OB testing to prevent false positive results. <BR/><BR/>Hey Sally<BR/>Dun bluff lah u do OB before lor. Haha Yup, the limitation is that blood, if present in the stools may not be distributed uniformly in the sample. Therefore, we may observe a negative result even if the person has the disease. <BR/><BR/>Hello Alex<BR/>Em…not like PBF. Take some of the sample using the wooden stick and just spread a bit on the test card? Yup. Just a bit will do because the test is very sensitive.<BR/><BR/>Hello Azhar<BR/>Are u talking about nagase? Sorry maybe I didn’t explain clear enough..Ok ah.. U need to open the test card to do the test. When u open the test card, u can see a thin piece of guaiac paper in it. U smear the stool here, cover the flap, then when u turn to the back of the test card, u have to tear open a part which will reveal the back of that thin piece of guaiac paper that I mentioned earlier. So since the stool will absorb the guaiac in the paper, by adding the developer to the paper, occult blood can be detected. Hope you’re clearer now..<BR/><BR/>Hello June<BR/>Im not really sure about that. I’ll try to find out more before telling u..give e a bit more time k….<BR/><BR/>Hello Ci Liang <BR/>Some tests for gastrointestinal diseases are intestinal biopsies, stool FEME (for ova, parasites, amoeba etc), endoscopy and imaging studies like magnetic resonance imaging (MRI).<BR/><BR/><BR/>Hello Johanna<BR/>They should abstain from red meat for 3 days and NSAIDs for a week.<BR/><BR/>Hello Lizzie<BR/>The lab I’m in does not do confirmation for positive OB cases. Haha..ya. I think it’s possible that a person may be tested positive if there’s blood in his stools cuz of constipation. <BR/><BR/>Hello Natalie<BR/>Yup, a screening endoscopy is done to detect for colorectal cancer if you are tested positive for OB. It is performed using an endoscope, which is a flexible fiberoptic tube with a tiny TV camera at the end. The endoscope is passed through the mouth, throat, esophagus and into the colon for examination. The camera is connected to either an eyepiece for direct viewing or a video screen that displays the images on a color TV.<BR/><BR/>Hello Vino<BR/>Guaiac is a natural resin extracted from a kind of wood that is useful in detecting occult blood.<BR/><BR/><BR/>Shu HuiALsubshttps://www.blogger.com/profile/08726497773853698048noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-61099783728194275452007-10-06T06:58:00.000-07:002007-10-06T06:58:00.000-07:00hey HI!hey u mentioned that oxidation of guaiac by...hey HI!<BR/><BR/>hey u mentioned that oxidation of guaiac by hydrogen peroxide to a blue compound.... wat is guaiac ?<BR/><BR/>Vinodhini <BR/>TGO2Vinohttps://www.blogger.com/profile/18411854920717425677noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-13626410466780341152007-10-02T00:07:00.000-07:002007-10-02T00:07:00.000-07:00Hello shuhui! hmm may i know why red meat and NSAI...Hello shuhui! <BR/>hmm may i know why red meat and NSAIDs can cause false positive results?<BR/>and erm whats the procedure of a screening endoscopy, its like a re-confirmation test issit? <BR/><BR/>Natalie (:The Lab Freakshttps://www.blogger.com/profile/04322986402512975861noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-73418769632492900842007-10-02T00:06:00.000-07:002007-10-02T00:06:00.000-07:00This comment has been removed by the author.The Lab Freakshttps://www.blogger.com/profile/04322986402512975861noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-37113964884095195772007-10-01T09:56:00.000-07:002007-10-01T09:56:00.000-07:00hi shu hui,my lab is also using the same kit as yo...hi shu hui,<BR/><BR/>my lab is also using the same kit as yours but i think that the way we do confirmation is different. how will your lab do to confirm when the result is positive but the patient did not take any red meat or NSAID drug?<BR/><BR/>the blood can also due to the force exert when the patient is excreting (maybe suffering from constipation?)<BR/><BR/>Lizziewe are the XiaoBianTai-7!https://www.blogger.com/profile/08103713119175158043noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-70014267939277760912007-10-01T02:41:00.000-07:002007-10-01T02:41:00.000-07:00Hey Shu HuiYou mentioned that patients should avoi...Hey Shu Hui<BR/><BR/>You mentioned that patients should avoid taking red-meat and NSAIDs as it would affect your results right? Does avoiding mean not consuming it within 24hrs of the test or a week's interval to ensure the test results are not affected? Thanx<BR/><BR/>Johanna<BR/>0503309G<BR/>TG02royal physicianshttps://www.blogger.com/profile/17022912731511892610noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-51528970474105115672007-09-30T10:11:00.000-07:002007-09-30T10:11:00.000-07:00HelloCan I know is there any other tests that need...Hello<BR/><BR/>Can I know is there any other tests that need to be done for the confirmation of gastrointestinal diseases and why? Thanks<BR/><BR/>Ci Liang<BR/>TG01BloodBank.MedMic.Haematologyhttps://www.blogger.com/profile/11938959656718537358noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-85666287796583817302007-09-30T06:08:00.000-07:002007-09-30T06:08:00.000-07:00Hello Shuhui! =) May i know what's the purpose of ...Hello Shuhui! =) <BR/>May i know what's the purpose of denatured ethyl alcohol in the developing solution?<BR/><BR/>June, TG02first6weekshttps://www.blogger.com/profile/08749621516637350994noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-33841903126707806102007-09-30T01:50:00.000-07:002007-09-30T01:50:00.000-07:00Hey Shu Hui,Unlike all the others, I have had the ...Hey Shu Hui,<BR/><BR/>Unlike all the others, I have had the 'honour' to experience FOBT(Faecal Occult Blood Test):).<BR/><BR/>However, my lab uses a different method where we just need to stab the stool using this small bottle-like instrument with a tube-like opening.<BR/><BR/>Anyways im not quite clear about how exactly you perform the test you mentioned. You smear the front of the test card yet add the developer to the back of the card? How does the stool come into contact with the developer then?<BR/><BR/>Thanks<BR/><BR/>AzharJ.A.M.M.Y.Shttps://www.blogger.com/profile/17180949601509896566noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-53940826737439395232007-09-30T01:07:00.000-07:002007-09-30T01:07:00.000-07:00Hello Shu Hui,I would also like to know how do red...Hello Shu Hui,<BR/><BR/>I would also like to know how do red meat and NSAIDs affect the test result? AND.. how do you smear STOOL? eeew.. like normal PBF? hahaha.<BR/><BR/>Thanks.<BR/><BR/>-Alex Tg02first6weekshttps://www.blogger.com/profile/08749621516637350994noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-32262382946878042452007-09-29T21:29:00.000-07:002007-09-29T21:29:00.000-07:00Hello shu hui,I also want to say "heng ah i no nee...Hello shu hui,<BR/>I also want to say "heng ah i no need to do OB"! hahaha<BR/>My question to u is:<BR/>Are there any limitations to the test?<BR/><BR/>SallyALsubshttps://www.blogger.com/profile/08726497773853698048noreply@blogger.comtag:blogger.com,1999:blog-4747662821214055092.post-52993313869490725242007-09-29T11:37:00.000-07:002007-09-29T11:37:00.000-07:00Hi Shu Hui! Yeah heng tat i need not handle stool ...Hi Shu Hui! Yeah heng tat i need not handle stool samples =p haha anyway.......<BR/><BR/>Care to elaborate further on why red meat and NSAIDs can cause false positive results? Could it be due to the presence of substances that will also catalyse the oxidation of alpha-guaiaconic acid?<BR/><BR/>Chaur LeeVASTYJhttps://www.blogger.com/profile/05770144192923839431noreply@blogger.com