thrombolytics (NOT COMPLETE) Flashcards
simple explanation of tenecteplase role
accelerates the breakdown of clots
Heparin role simple explanation
short acting anticoagulant
enoxaparin basic role
long acting anticoagulant
clopidogrel basic role
antiplatelet
tenecteplase preparation
Glass ampoule containing 50 mg of tenecteplase, in powder form with a pre-filled syringe containing 10 ml of sterile water.
what is tenecteplase
fibrinolytic that accelerates the breakdown of blood clots
Tenecteplase MOA
Tenecteplase accelerates the breakdown of clots by stimulating TPA (tissue plasminogen activator, an enzyme) to facilitate the increased conversion of plasminogen to plasmin, resulting in a breakdown of fibrin ( the mesh casing of vessels).
ILS indcation of tenectplase
STEMI when following the fibrinolytic pathway.
contradictions of tenectplase
allergy
cautions of tenectaplse
Clinically significant bleeding.
More than ten minutes of CPR.
Non-compressible vascular puncture within the last 24 hours.
Internal bleeding within the last six weeks.
Lumbar puncture or epidural insertion within the last six weeks.
TIA within the last three months.
Known bleeding disorder.
Taking an anticoagulant. If the patient is taking warfarin document their last known INR result if possible.
Systolic BP greater than 180 mmHg or diastolic BP greater than 110 mmHg.
Known to be pregnant or less than two weeks postpartum.
Time of onset of symptoms was greater than 12 hours ago.
Dependent on others for activities of daily living.
Another disease significantly shortens their life expectancy.
Very frail.
Suspected aortic dissection.
Major surgery, major trauma or severe brain injury within the last six weeks.
Intracranial surgery within the last six months.
Ischaemic stroke within the last six months.
Previous intracerebral haemorrhage.
Known cerebral aneurysm, arteriovenous malformation or tumour.
tenectaplase and pregency?
seek clinical advise
administration of tenectplase
Follow weight based medication chart
Dissolve the powder using the syringe within the kit.
Carefully discard unwanted drug from the syringe, preferably into the ampoule before administration, ensuring the correct dose remains in the syringe.
If an error is made in discarding unwanted drug and the correct dose cannot be drawn up, administer the remaining drug, document this well, and notify the receiving clinician.
Administer undiluted as an IV bolus, preferably into a running IV line.
advese effects of tenectaplase
Bleeding. Tenecteplase commonly causes superficial bleeding, including epistaxis, bruising and bleeding from IV sites.
Dysrhythmia. It is common for dysrhythmia to occur if the coronary artery reperfuses. Most commonly the rhythm is accelerated idioventricular rhythm (AIVR) which does not require specific treatment. Other dysrhythmias should be treated using the appropriate section.
onset of tenectplase
5-10 minutes
duration of tenectplasse
2-6 hours