Drug administration for tenecteplase thrombolysis | Age under 75 years | Age 75 years or older |
Step 1 | Aspirin 300mg oral (ideally soluble or chewed), if not already given | Aspirin 300mg oral (ideally soluble or chewed), if not already given |
Step 2 | Tenecteplase (TNK) full dose 0.5mg per kg IV (see below) | Tenecteplase (TNK) half dose 0.25mg per kg IV (see below) |
Step 3 | Unfractionated heparin (UFH) 4000 units IV bolus | No UFH bolus |
Step 4 | Clopidogrel 300mg oral | Clopidogrel 75mg oral |
Step 5 | Enoxaparin 1mg/kg bd s.c. (max 100mg per injection for the first two doses) | Enoxaparin 0.75mg/kg bd s.c. (max 75mg per injection for the first two doses) |
Special considerations:
Tenecteplase (TNK) dosing regimen |
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|
Age < 75 yrs |
Age ≥ 75 yrs |
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Weight (kg) |
TNK (units) |
TNK (mg) |
Vol (ml) |
TNK (units) |
TNK (mg) |
Vol (ml) |
< 60 |
6,000 |
30 |
6 |
3,000 |
15 |
3 |
60 - < 70 |
7,000 |
35 |
7 |
3,500 |
17.5 |
3.5 |
70 - < 80 |
8,000 |
40 |
8 |
4,000 |
20 |
4 |
80 - < 90 |
9,000 |
45 |
9 |
4,500 |
22.5 |
4.5 |
≥ 90 |
10,000 |
50 |
10 |
5,000 |
25 |
5 |
Unfractionated heparin IV infusion (only if eGFR < 15)
Following IV UFH bolus, start IV UFH infusion of 12 units per kg, up to a maximum of 1,000 units/h for 24 to 48 hours. Target aPTT: 50-70 s, or 1.5 to 2.0 times control at 3, 6, 12 and 24 h
For further more detailed information please see Europeon Society of Cardiology (ESC) guidance:
Management of Acute Myocardial Infarction in patients presenting with ST-segment elevation
Abbreviation | Meaning |
GTN | Glyceryl trinitrate |
ECG | Electrocardiogram |
CCU | Coronary care unit |
STEMI | ST-Elevation Myocardial Infarction |
AV | Atrioventricular block |
SBP | Systolic blood pressure |
DBP | Diastolic blood pressure |
LBBB | Left bundle branch block |
eGFR | Estimated glomerular filtration rate |
DOAC | Direct oral anticoagulants |
UFH | Unfractionated heparin |
aPTT | Activated partial thromboplastin time |
PCI | Percutaneous Coronary Intervention |
Last reviewed: 30 August 2021
Next review: 30 August 2024
Author(s): Department of Cardiology
Version: 8
Approved By: TAM Subgroup of ADTC
Reviewer Name(s): Consultant Cardiologist - Jonathan Watt
Document Id: TAM135
Internal URL: https://nhshighlands.azurewebsites.net/umbraco/#/content/content/edit/11903