Does this test have other names?
Fragment D-dimer, fibrin degradation fragment
What is this test?
This is a blood test to look for a substance called D-dimer. This test is used to rule out a blood clot.
D-dimer is a protein fragment from the breakdown of a blood clot. Blood clots generally start to slowly break down after they are formed, and this process releases D-dimer into the blood.
Why do I need this test?
You may need this test if your healthcare provider suspects you have a blood clot. A blood clot that forms in a deep vein is called a deep vein thrombosis (DVT). A DVT is most commonly found in the legs. If the clot travels to the lungs, it's called a pulmonary embolism (PE). In the lungs, the clot can cut off the flow of blood. This is a medical emergency and may cause death.
Symptoms of a blood clot include:
Leg swelling (edema)
Leg pain or soreness
If you have these symptoms, call your healthcare provider.
You may also have a D-dimer test if you have symptoms of a blood clot in the lungs, such as:
If you have these symptoms, call 911 or get emergency help.
People with blood clots often have 1 or more risk factors. These risk factors include:
Major surgery (for example, hip surgery) or injury (for example, a broken leg)
Not being able to move for long periods of time (for instance, from being in the hospital, or taking long trips by plane or car)
Pregnancy or recent childbirth
Inherited clotting disorder, such as factor V Leiden mutation
You may also need this test to help diagnose and monitor treatment for other conditions.
What other tests might I have along with this test?
You may need more blood tests, including platelet count, fibrinogen, and prothrombin time.
If your D-dimer test is positive, you will have other tests. You may have the following imaging tests to look for blood clots:
These tests help your healthcare provider diagnose blood clots in your legs, arms, lungs, or other parts of the body.
What do my test results mean?
Test results may vary depending on your age, gender, health history, and other things. Your test results may be different depending on the lab used. They may not mean you have a problem. Ask your healthcare provider what your test results mean for you.
An elevated D-dimer level is not normal. It's usually found after a clot has formed and is in the process of breaking down. If you are having significant formation and breakdown of a blood clot in your body, your D-dimer may be elevated.
A negative D-dimer test means that a blood clot is highly unlikely.
A positive D-dimer test doesn't mean that you have a clot. There may be other reasons it is positive. More testing is usually needed.
How is this test done?
The test requires a blood sample, which is drawn through a needle from a vein in your arm.
Does this test pose any risks?
Taking a blood sample with a needle carries small risks that include bleeding, infection, bruising, or feeling dizzy. When the needle pricks your arm, you may feel a slight stinging sensation or pain. Afterward, the site may be slightly sore.
What might affect my test results?
Levels may be higher in people with other problems. They include infection, heart attack (myocardial infarction), liver disease, cancer, and injury.
How do I get ready for this test?
You don't need to prepare for this test.
Je, jaribio hili lina majina mengine? D-dimer ya kipande cha fibrin ya kuharibika Hii ni mtihani wa damu kuangalia kwa ajili ya dutu inayoitwa D-dimer. Uchunguzi huu hutumiwa kuondoa uwezekano wa kuganda kwa damu. D-dimer ni kipande cha protini kutokana na kuvunjika kwa damu iliyochanganyika. Kwa kawaida, makundi ya damu huanza kuvunjika polepole baada ya kuundwa, na mchakato huo hutokeza D- dimer katika damu. Kwa nini ninahitaji mtihani huu? Unaweza kuhitaji mtihani huu ikiwa mtoa huduma yako ya afya anashuku una damu ya damu. Mshipa wa damu unaojitokeza katika mshipa wa damu wa ndani huitwa thrombosis ya mshipa wa damu wa ndani (DVT). A DVT hupatikana kwa kawaida katika miguu. Ikiwa damu imefika kwenye mapafu, inaitwa pulmonary embolism. Katika mapafu, damu inaweza kuzama na kuzuia mtiririko wa damu. Hii ni dharura ya matibabu na inaweza kusababisha kifo. Dalili za kuganda kwa damu ni pamoja na: uvimbe wa mguu (edema) maumivu ya mguu au uchungu Ikiwa una dalili hizi, piga simu kwa mtoa huduma yako ya afya. D-dimer inaweza pia kuchunguzwa ikiwa una dalili za kuganda kwa damu kwenye mapafu, kama vile: Ikiwa una dalili hizi, piga simu 911 au upate msaada wa dharura. Watu wenye kuganda kwa damu mara nyingi wana sababu moja au zaidi za hatari. Upasuaji mkubwa (kwa mfano, upasuaji wa kiuno) au jeraha (kwa mfano, mguu uliovunjika) - Kutokuwa na uwezo wa kusonga kwa muda mrefu (kwa mfano, kutoka kuwa hospitalini, au kuchukua safari ndefu kwa ndege au gari) - Ujawazito au kuzaa hivi karibuni - Ugonjwa wa kuganda kwa damu, kama vile mutation ya sababu ya V-Leiden - Unaweza pia kuhitaji mtihani huu kusaidia kugundua na kufuatilia matibabu ya hali nyingine. Ni vipimo gani vingine ambavyo ninaweza kufanya pamoja na mtihani huu? Unaweza kuhitaji uchunguzi zaidi wa damu, kutia ndani hesabu ya vidonge vya damu, fibrinogen, na muda wa prothrombin. Ikiwa mtihani wako wa D-dimer ni chanya, utafanyiwa vipimo vingine. Unaweza kufanya uchunguzi wa upimaji wa picha ili kujua kama kuna damu iliyofyonzwa kwenye miguu, mikono, mapafu, au sehemu nyingine za mwili. Matokeo ya uchunguzi wangu yanamaanisha nini? Matokeo ya uchunguzi yanaweza kutofautiana kulingana na umri wako, jinsia yako, historia yako ya afya, na mambo mengine. Matokeo ya mtihani wako yanaweza kuwa tofauti kulingana na maabara iliyotumiwa. Huenda hazimaanishi kwamba una tatizo. Uliza mtoa huduma yako wa afya matokeo ya mtihani wako yanamaanisha nini kwako. Kiwango cha juu cha D- dimer si cha kawaida. Kwa kawaida hupatikana baada ya kuganda kufanyizwa na kuwa katika mchakato wa kuvunjika. Ikiwa una muundo mkubwa na uharibifu wa kuganda kwa damu katika mwili wako, D-dimer yako inaweza kuongezeka. Jaribio la D-dimer lisilo na matokeo linamaanisha kwamba kuna uwezekano mdogo sana wa kuganda kwa damu. Jaribio chanya la D-dimer halimaanishi kwamba una damu iliyoganda. Kunaweza kuwa na sababu nyingine ni chanya. Kwa kawaida majaribio zaidi huhitajiwa. Mtihani huo hufanywaje? Mtihani huo unahitaji sampuli ya damu, ambayo huchukuliwa kupitia sindano kutoka kwenye mshipa wa mkono wako. Je, jaribio hili lina hatari yoyote? Kuchukua sampuli ya damu kwa kutumia sindano kunaweza kusababisha hatari ndogo-ndogo, kama vile kutokwa na damu, maambukizo, majeraha, au kizunguzungu. Wakati sindano inapochomwa mkono wako, huenda ukahisi uchungu au uchungu mdogo. Baada ya hapo, huenda eneo hilo likawa na maumivu kidogo. Ni nini kinachoweza kuathiri matokeo ya mtihani wangu? Kiwango hicho chaweza kuwa juu zaidi kwa watu walio na matatizo mengine. Hizo zatia ndani maambukizo, mshtuko wa moyo (mshtuko wa moyo), ugonjwa wa ini, kansa, na majeraha. Ninaweza kujitayarishaje kwa ajili ya mtihani huu? Huna haja ya kujitayarisha kwa ajili ya mtihani huu.