This is a medical laboratory test.
2006-06-14 18:51:34 · 7 answers · asked by yeah right 1 in Science & Mathematics ➔ Medicine
The test you are refering to is the INR, International Normalized Ratio. The ratio is derived by dividing the patients PT (prothrombin time) by the "normal pt." Also included in the calculation is a variable to adjust for the specific instrument and reagent (throboplastin) used. The INR is a way to standardize results of PT testing, the INR should remain about the same no matter where the PT was actually done. The PT is a test of clotting factors. There are 13 factors working togethor to cause a clot. The PT measures the effectiveness of those factors dependent on Vitamin K for their production in the liver. Coumadin is a Vitamin K depressent, resulting in the suppresion of these specific clotting factors and slowing down clot formation. Prescribed for people at risk for clots and after many types of surgeries, coumadin is not a blood thinner but rathe a drug which suppresses clotting. Doctor's use the INR to measure the effectiveness of coumadin therapy, referring to the INR is easier and safer than that of the PT because the INR does take into account the possibility of PT testing during the coars of treatment and monitoring being performed on different instruments. The generic name for coumadin is warfarin, the primary ingredient in rat poison. The massive dose that a rat gets causes major hemmorhage. The antidote for coumadin overdose is Vitamin K injections.
2006-06-15 02:55:04 · answer #1 · answered by tom5551 3 · 2⤊ 1⤋
Coumadin Blood Test
2016-10-04 05:28:36 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Actually I think you mean INR test.
My mother had cancer and had to go on Coumadin which meant she had to get a PT test almost every day.
PT=Pro Time Test, formally called Prothrombin Time
INR=International Normalized Ratio
These are the exact same thing only 2 different names.
It is to check the time it takes for the blood to clot once bleeding is induced. If the blot clots too quickly you need coumadin or a higher dosage. If the blood is too thin and you keep bleeding then they need to take you off the coumadin or lower the dosage.
To help thicken the blood I believe they use vitamin K.
2006-06-14 19:20:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋
INR - International Normalized Ratio
This is a ratio between the patient's protime (measure of clotting, which coumadin affects) and that of a control. Normal is around 1. If you are on coumadin, it should be anywhere from 1.5 to 3.5 depending on why you are on it.
2006-06-15 13:48:35 · answer #4 · answered by J 4 · 0⤊ 0⤋
Its actually INR and it stands for international normailize ratio and along with the PT (protime) it helps a doctor determine ther therapeutic effects of coumadin and other blood thinners.
2006-06-14 19:02:25 · answer #5 · answered by jstanotherqwtchic 2 · 0⤊ 0⤋
I believe you mean, INR. It stands for international normalized ratio. It is used to monitor the "thinness" of your blood. Normal blood with NO coumadin should equal 1. Depending on your situation, physician's usually shoot for around 1.5-2.5
2006-06-14 19:06:39 · answer #6 · answered by Ferdi 2 · 0⤊ 0⤋
Could you be referring to the INR?
The INR is the International Normalized Ratio. It is a test used to determine a patients prothrombin time or PT. The PT determines the amount of time it takes for a persons blood to clot. Certain deficiencies of blood factors can cause the PT to be to long or not enough factors cause it to be to short. If it is to long the blood is to thin, to short the blood is to thick. The range is 11-12.5 seconds.
2006-06-14 20:07:57 · answer #7 · answered by bsn2rn 1 · 0⤊ 0⤋
This is a great question, and one that has been the source of confusion for me for quite some time.
2016-08-22 23:50:47 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Need more info to answer
2016-07-27 00:21:08 · answer #9 · answered by Laverna 3 · 0⤊ 0⤋