| |
|
Click on the first letter in the test name:
Activated partial thromboplastin time Article
|
|
Activated partial thromboplastin time
Definition
Partial thromboplastin time (PTT) is a blood test that looks at how long it takes for blood to clot. It can help tell if you have bleeding or clotting problems.
Alternative Names
APTT; PTT; Activated partial thromboplastin time
Why the Activated partial thromboplastin time is Performed
Your doctor may order this test if you have problems with bleeding or blood clotting. The test may also be used to monitor patients who are taking heparin, a blood thinner.
A PTT test is usually done with other tests, such as the prothrombin test.
How the Activated partial thromboplastin time is Performed
The health care provider uses a needle to take blood from one of your veins. The blood collects into an air-tight container. You may be given a bandage to stop any bleeding. If you are taking a medicine called heparin, you will be watched for signs of bleeding.
The laboratory specialist will add chemicals to the blood sample and see how many seconds it takes for the blood to clot.
How to Prepare for the Activated partial thromboplastin time
The health care provider may tell you to stop taking certain drugs before the test. Drugs that can affect the results of a PTT test include antihistamines, vitamin C (ascorbic acid), aspirin, and chlorpromazine (Thorazine).
Do not stop taking any medicine without first talking to your doctor.
How the Activated partial thromboplastin time Will Feel
When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.
Risks
This test is often done on people who may have bleeding problems. The risks of bleeding and hematoma in these patients are slightly greater than for people without bleeding problems.
In general, risks of any blood test may include:
- Excessive bleeding
- Fainting or feeling light-headed
- Hematoma (blood accumulating under the skin)
- Infection (a slight risk any time the skin is broken)
- Multiple punctures to locate veins
Considerations
When you bleed, the body launches a series of activities that help the blood clot. This is called the coagulation cascade. There are three pathways to this event. The PTT test looks at special proteins, called factors, found in two of these pathways.
Normal Results
The normal value will vary between laboratories. In general, clotting should occur between 25 to 35 seconds. If the person is taking blood thinners, clotting takes up to two and a half times longer.
What Abnormal Results Mean
An abnormal (too long) PTT result may be due to:
- Cirrhosis
- Disseminated intravascular coagulation (DIC)
- Factor XII deficiency
- Hemophilia A
- Hemophilia B
- Hypofibrinogenemia
- Malabsorption
- Von Willebrand's disease
- Lupus anticoagulants
Email to a Friend
Typical mistypes for Activated partial thromboplastin time
zctivated partial thromboplastin time, sctivated partial thromboplastin time, wctivated partial thromboplastin time, qctivated partial thromboplastin time, axtivated partial thromboplastin time, avtivated partial thromboplastin time, aftivated partial thromboplastin time, adtivated partial thromboplastin time, acrivated partial thromboplastin time, acfivated partial thromboplastin time, acgivated partial thromboplastin time, acyivated partial thromboplastin time, ac6ivated partial thromboplastin time, ac5ivated partial thromboplastin time, actuvated partial thromboplastin time, actjvated partial thromboplastin time, actkvated partial thromboplastin time, actovated partial thromboplastin time, act9vated partial thromboplastin time, act8vated partial thromboplastin time, acticated partial thromboplastin time, actibated partial thromboplastin time, actigated partial thromboplastin time, actifated partial thromboplastin time, activzted partial thromboplastin time, activsted partial thromboplastin time, activwted partial thromboplastin time, activqted partial thromboplastin time, activared partial thromboplastin time, activafed partial thromboplastin time, activaged partial thromboplastin time, activayed partial thromboplastin time, activa6ed partial thromboplastin time, activa5ed partial thromboplastin time, activatwd partial thromboplastin time, activatsd partial thromboplastin time, activatdd partial thromboplastin time, activatrd partial thromboplastin time, activat4d partial thromboplastin time, activat3d partial thromboplastin time, activates partial thromboplastin time, activatex partial thromboplastin time, activatec partial thromboplastin time, activatef partial thromboplastin time, activater partial thromboplastin time, activatee partial thromboplastin time, activated oartial thromboplastin time, activated lartial thromboplastin time, activated -artial thromboplastin time, activated 0artial thromboplastin time, activated pzrtial thromboplastin time, activated psrtial thromboplastin time, activated pwrtial thromboplastin time, activated pqrtial thromboplastin time, activated paetial thromboplastin time, activated padtial thromboplastin time, activated paftial thromboplastin time, activated pattial thromboplastin time, activated pa5tial thromboplastin time, activated pa4tial thromboplastin time, activated parrial thromboplastin time, activated parfial thromboplastin time, activated pargial thromboplastin time, activated paryial thromboplastin time, activated par6ial thromboplastin time, activated par5ial thromboplastin time, activated partual thromboplastin time, activated partjal thromboplastin time, activated partkal thromboplastin time, activated partoal thromboplastin time, activated part9al thromboplastin time, activated part8al thromboplastin time, activated partizl thromboplastin time, activated partisl thromboplastin time, activated partiwl thromboplastin time, activated partiql thromboplastin time, activated partiak thromboplastin time, activated partiap thromboplastin time, activated partiao thromboplastin time, activated partial rhromboplastin time, activated partial fhromboplastin time, activated partial ghromboplastin time, activated partial yhromboplastin time, activated partial 6hromboplastin time, activated partial 5hromboplastin time, activated partial tgromboplastin time, activated partial tbromboplastin time, activated partial tnromboplastin time, activated partial tjromboplastin time, activated partial turomboplastin time, activated partial tyromboplastin time, activated partial theomboplastin time, activated partial thdomboplastin time, activated partial thfomboplastin time, activated partial thtomboplastin time, activated partial th5omboplastin time, activated partial th4omboplastin time, activated partial thrimboplastin time, activated partial thrkmboplastin time, activated partial thrlmboplastin time, activated partial thrpmboplastin time, activated partial thr0mboplastin time, activated partial thr9mboplastin time, activated partial thronboplastin time, activated partial throkboplastin time, activated partial throjboplastin time, activated partial thromvoplastin time, activated partial thromnoplastin time, activated partial thromhoplastin time, activated partial thromgoplastin time, activated partial thrombiplastin time, activated partial thrombkplastin time, activated partial thromblplastin time, activated partial thrombpplastin time, activated partial thromb0plastin time, activated partial thromb9plastin time, activated partial thromboolastin time, activated partial thrombollastin time, activated partial thrombo-lastin time, activated partial thrombo0lastin time, activated partial thrombopkastin time, activated partial thromboppastin time, activated partial thrombopoastin time, activated partial thromboplzstin time, activated partial thromboplsstin time, activated partial thromboplwstin time, activated partial thromboplqstin time, activated partial thromboplaatin time, activated partial thromboplaztin time, activated partial thromboplaxtin time, activated partial thrombopladtin time, activated partial thromboplaetin time, activated partial thromboplawtin time, activated partial thromboplasrin time, activated partial thromboplasfin time, activated partial thromboplasgin time, activated partial thromboplasyin time, activated partial thromboplas6in time, activated partial thromboplas5in time, activated partial thromboplastun time, activated partial thromboplastjn time, activated partial thromboplastkn time, activated partial thromboplaston time, activated partial thromboplast9n time, activated partial thromboplast8n time, activated partial thromboplastib time, activated partial thromboplastim time, activated partial thromboplastij time, activated partial thromboplastih time, activated partial thromboplastin rime, activated partial thromboplastin fime, activated partial thromboplastin gime, activated partial thromboplastin yime, activated partial thromboplastin 6ime, activated partial thromboplastin 5ime, activated partial thromboplastin tume, activated partial thromboplastin tjme, activated partial thromboplastin tkme, activated partial thromboplastin tome, activated partial thromboplastin t9me, activated partial thromboplastin t8me, activated partial thromboplastin tine, activated partial thromboplastin tike, activated partial thromboplastin tije, activated partial thromboplastin timw, activated partial thromboplastin tims, activated partial thromboplastin timd, activated partial thromboplastin timr, activated partial thromboplastin tim4, activated partial thromboplastin tim3, ctivated partial thromboplastin time, ativated partial thromboplastin time, acivated partial thromboplastin time, actvated partial thromboplastin time, actiated partial thromboplastin time, activted partial thromboplastin time, activaed partial thromboplastin time, activatd partial thromboplastin time, activate partial thromboplastin time, activatedpartial thromboplastin time, activated artial thromboplastin time, activated prtial thromboplastin time, activated patial thromboplastin time, activated parial thromboplastin time, activated partal thromboplastin time, activated partil thromboplastin time, activated partia thromboplastin time, activated partialthromboplastin time, activated partial hromboplastin time, activated partial tromboplastin time, activated partial thomboplastin time, activated partial thrmboplastin time, activated partial throboplastin time, activated partial thromoplastin time, activated partial thrombplastin time, activated partial thrombolastin time, activated partial thrombopastin time, activated partial thromboplstin time, activated partial thromboplatin time, activated partial thromboplasin time, activated partial thromboplastn time, activated partial thromboplasti time, activated partial thromboplastintime, activated partial thromboplastin ime, activated partial thromboplastin tme, activated partial thromboplastin tie, activated partial thromboplastin tim, cativated partial thromboplastin time, atcivated partial thromboplastin time, acitvated partial thromboplastin time, actviated partial thromboplastin time, actiavted partial thromboplastin time, activtaed partial thromboplastin time, activaetd partial thromboplastin time, activatde partial thromboplastin time, activate dpartial thromboplastin time, activatedp artial thromboplastin time, activated aprtial thromboplastin time, activated pratial thromboplastin time, activated patrial thromboplastin time, activated parital thromboplastin time, activated partail thromboplastin time, activated partila thromboplastin time, activated partia lthromboplastin time, activated partialt hromboplastin time, activated partial htromboplastin time, activated partial trhomboplastin time, activated partial thormboplastin time, activated partial thrmoboplastin time, activated partial throbmoplastin time, activated partial thromobplastin time, activated partial thrombpolastin time, activated partial thrombolpastin time, activated partial thrombopalstin time, activated partial thromboplsatin time, activated partial thromboplatsin time, activated partial thromboplasitn time, activated partial thromboplastni time, activated partial thromboplasti ntime, activated partial thromboplastint ime, activated partial thromboplastin itme, activated partial thromboplastin tmie, activated partial thromboplastin tiem, aactivated partial thromboplastin time, acctivated partial thromboplastin time, acttivated partial thromboplastin time, actiivated partial thromboplastin time, activvated partial thromboplastin time, activaated partial thromboplastin time, activatted partial thromboplastin time, activateed partial thromboplastin time, activatedd partial thromboplastin time, activated partial thromboplastin time, activated ppartial thromboplastin time, activated paartial thromboplastin time, activated parrtial thromboplastin time, activated parttial thromboplastin time, activated partiial thromboplastin time, activated partiaal thromboplastin time, activated partiall thromboplastin time, activated partial thromboplastin time, activated partial tthromboplastin time, activated partial thhromboplastin time, activated partial thrromboplastin time, activated partial throomboplastin time, activated partial thrommboplastin time, activated partial thrombboplastin time, activated partial thrombooplastin time, activated partial thrombopplastin time, activated partial thrombopllastin time, activated partial thromboplaastin time, activated partial thromboplasstin time, activated partial thromboplasttin time, activated partial thromboplastiin time, activated partial thromboplastinn time, activated partial thromboplastin time, activated partial thromboplastin ttime, activated partial thromboplastin tiime, activated partial thromboplastin timme, activated partial thromboplastin timee, etc.
|
|
|
|
|
|
