why do they inject radio active fluid into your viens when you get an M R I scan? and what exactly takes place
360281
Neither MRI nor CT/X-ray uses a radioactive contrast (dye).  The only imaging modality that uses that is nuclear medicine.  To read more about the contrast used in MRI, try the links below:\n\nhttp://www.cc.nih.gov/drd/patedu.html\n\n"If an injection is needed, what is injected and how is it given?\nIf an injection is required to complete your scan, a contrast agent called Gadolinium is used.  This contrast causes the tissues and blood vessels of the body to be seen more clearly than with conventional, non-contrasted MRI.  Gadolinium is injected into the body through veins in your arm or hand.  Gadolinium is a substance that reacts like iron in the body, and produces few side effects when used.  You may feel a cool sensation when the contrast is injected.  You may also get a metallic taste in you mouth, however, these effects usually subside in a few seconds."\n\nhttp://www.srhc.com/services/radiology/mri/faqs.html
32990
With an MRI, they trace the outline of internal body parts, via the bloodstreem, to greatly aid the imaging.\nPlus, since they are only mildly radioactive, there is little chance of harming the patient.
799378
I would do as the hospital says, there must be a reason for it...especially if the scan is to do with the uterus.  Why not ask them...;
345546
Let the doctor know.  I means you get another test. This happens frequently.
1145497
There is a stinging pain with the anesthetic needle and the anesthetic being injected. The biopsy needle may be felt as a deep pressure and dull pain. This pain is sometimes felt in the shoulder.
1002523
The swelling in your arm is due to the action of white blood cells taking action in your body. As the white blood cells see that something is wrong in your hand, they migrate to that particular area of your body and set to work repairing. Just like we sweat when we exert ourselves, the white blood cells are giving off a bi product as well. Think of it as though they are gassy. It may sound weird, but the bi product of their work is actually causing your arm/hand to swell. Edema is a medical term for localized swelling. Some quick fixes to swelling are massaging the area if you can tolerate a little pressure in that area. Gently rub the area. By massaging the area, it causes improved circulation in your hand making the swelling less intense.  Ice or cold compresses will also cause the blood vessels to constrict resulting in less swelling. Compression of the area will also help. Try an ace bandage, gauze, or any other material that may cause slight compression to your hand.
722575
Sometimes deleting is not the answer, but you can't go wrong with quarentining. Depending on what Anti-Virus software you are using, some of these infesctions may be in resident memory. They need to be in a stopped mode before anything can be done with them. Another way is to boot into safe mode and then do the scan. From thier you will have much more dexterity with them then in a full boot mode.\n\nJohn\nA+ Certified Professional
1096753
When you work with unsealed radionuclides, used as tracers in a cell laboratory, you need to be checked periodically to see that you have not ingested any. I worked with soluble chromium-51, used to watch the destruction of lymphocytes (white blood cells). The way you get checked is that you submit a urine sample in a clean, clear container. Everyone gets the container, fills it, and was to bring it back to a technician. \n\nThe technician was a very beautiful redhead woman, Bernie. She was our electron-microscopist. We occasionally played small tricks on her, she on us. Everyone flirted with her. Harmless things. We were grad students, she was used to our stupid boy things.\n\nSo... one day I got the container and was supposed to give her a sample. Instead I went down to the cafeteria and bought some apple juice. I let the juice warm to room temperature. Then I poured it in the clean urine sample container. I know, you see this coming, right.  I went up to the lab where Bernie was.\n\n"Hey, Bernie," I said, "where do you want the sample?" She indicated over on the bench. She was busy with some small group of folks.\n\n"Bernie," I called again. She turned and looked. "I think it looks a little weak. I think I will run it through again." With that I opened the "urine" sample (really apple juice, of course) and drank it in one gulp.\n\nBernie turned bright red, as only a true redhead can, all the way to her roots. No freckles were left, she was beet red. She sputtered my name and then said, pointing to the people with her, "These are the representatives of the People's Republic of China who are touring our lab."\n\nGulp!  Well, guess they saw we Americans were pretty much what they thought we were.
389514
As mentioned above, a scanner can be used for putting a picture or text onto your computer. If you haven't seen one, they mostly look like very small copy machines(with the glass window where the object is placed). I doubt you are referring to the radio scanner, but they are devices that scan through a set of frequencies you enter, so that you can hear the police ar other emergency workers talking over their radios.
389063
THE Z-TRACK METHOD of I.M. injection prevents leakage of irritating and discoloring medications (such as iron dextran) into the subcutaneous tissue. It also may be used in elderly patients who have decreased muscle mass. Lateral displacement of the skin during the injection helps seal the drug in the muscle. \n\nWhen preparing to give a medication using this method, make sure the needle you're using is long enough to reach the muscle. As a rule, you'll need to use a 2-inch needle for a 200-lb (91-kg) patient, and a 1 1/4-inch to 1 1/2-inch needle for a 100-lb (45-kg) patient. \n\nGather the equipment you'll need, verify the order on the patient's medication administration record (MAR) by checking it against the prescriber's order, wash your hands, and follow these steps: \n\n* Attach one needle to the syringe and draw up the prescribed medication. Remove the first needle and attach the second to prevent tracking the medication through the subcutaneous tissue as you insert the needle. \n\n* Confirm the patient's identity, explain the procedure, and provide privacy. \n\n* Place the patient in the lateral position, exposing the gluteal muscle to be used as the injection site. \n\n* Put on gloves and displace the skin laterally by pulling it away from the injection site. (See Figure 1.) \n\n* Clean an area on the upper outer quadrant of the patient's buttocks with an alcohol pad and let it dry. \n\n* Insert the needle into the muscle at a 90-degree angle and aspirate for blood return. (See Figure 2.) If none appears, inject the drug slowly. If blood appears, withdraw the needle and start the procedure over with a new syringe and needle at a different site. \n\n* Wait 10 seconds, withdraw the needle slowly, and release the displaced skin and subcutaneous tissue to seal the needle track. (See Figure 3.) Don't massage the site or let the patient wear a tightfitting garment over it because that could force the medication into subcutaneous tissue. Encourage him to walk or move about in bed to facilitate absorption of the drug from the injection site. \n\n* Discard the needle and syringe in an appropriate sharps container. \n\n* Remove and discard your gloves. \n\nPractice pointers \n\n* Never inject more than 5 ml of solution into a single site. If the patient needs repeated injections, alternate gluteal sites. \n\n* Intramuscular injections can cause elevated serum enzyme levels. If measuring enzyme levels is important, suggest that the prescriber switch to LV. administration and adjust dosages accordingly.\n\n* Document the injection: Record the medication, dosage, date, time, and site on the patient's MAR. Include the patient's response to the injected drug.
929316
acute hazard associated w/ microwave radiation (radiation for RADAR transmitter) is heating the water in your cells.
136130
Are u mad ........ all the time u just keep on asking about the fluids only!!!!Go to a doctor instead of asking it on net!!!
361656
There are various brands but probably the most common in use in hospitals is AquaSonic (link to company website below.)\n\nThe gel facilitates the transmission of sound waves from the ultrasound probe to (and thence through) the skin. If there is air under the probe, the waves are reflected off it and you can't image the tissue underneath. Even a tiny air bubble will distort the wave/reading. The technical explanation (from Wikipedia):\n\n"Ultrasonography (sonography) uses a probe containing one or more acoustic transducers to send pulses of sound into a material. Whenever a sound wave encounters a material with a different acoustical impedance, part of the sound wave is reflected, which the probe detects as an echo. The time it takes for the echo to travel back to the probe is measured and used to calculate the depth of the tissue interface causing the echo. The greater the difference between acoustic impedances, the larger the echo is. The difference between gases and solids is so great that most of the acoustic energy is reflected, and so imaging of objects beyond that region is not possible."\n\nIt's a water-based gel (probably rather like KY). Most companies have proprietary formulae so I can't say exactly what they're made of. The second link is a rather neat discussion of different types of gel.
497112
First of all, the material usually isn't barium anymore but a different contrast material.  This contrast material stays inside the intestines and allows the radiologist to distinguish intestine from other soft tissues in the abdomen.  Often, IV contrast is also given to highlight blood vessels and other structures with high blood flow.
1017412
yes because it triggers the asma. it is from post naisal drip
939740
They are used in nuclear imaging sorta liek xrays, they can use liek barium to get scans of the intestines and other elements can be traced threw the body to check for defaults
496565
Plz see ur doc urgently.\nThis might even require USG or other scans to see if there is physical damage.\n& that obviously can't be done on Yahoo answers, can it?